Tax Glossary -- 100+ Tax Terms Explained
A comprehensive reference guide to tax planning terminology used throughout our advisory services and educational content. Written by the AE Tax Advisors Team.
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1031 Exchange
A provision under IRC Section 1031 that allows real estate investors to defer capital gains taxes by reinvesting the proceeds from the sale of an investment property into a like-kind replacement property. The exchange must follow strict timelines, including a 45-day identification period and a 180-day closing period. When executed correctly, a 1031 exchange defers both federal and state capital gains taxes indefinitely. Learn more about real estate tax planning.
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Accelerated Depreciation
A method of depreciation that allows taxpayers to deduct a larger portion of an asset's cost in the early years of its useful life, rather than spreading deductions evenly over time. Common accelerated methods include MACRS, bonus depreciation, and Section 179 expensing. Accelerated depreciation is a core strategy in real estate tax planning and cost segregation studies. Learn more about bonus depreciation.
Accountable Plan
An employer-sponsored reimbursement arrangement that allows business owners and employees to receive tax-free reimbursements for legitimate business expenses. To qualify, the plan must require a business connection, substantiation of expenses within a reasonable time, and return of any excess reimbursement. Accountable plans are frequently used by S-Corporation owners to deduct expenses that would otherwise be nondeductible. Learn more about business owner tax strategies.
Accrual Method
An accounting method that records income when earned and expenses when incurred, regardless of when cash actually changes hands. The accrual method is required for businesses with average annual gross receipts exceeding $30 million, though many smaller businesses may also elect it. It provides a more accurate picture of financial performance compared to cash-basis accounting. Learn more about business tax strategies.
Active Income
Income earned through direct participation in a trade, business, or employment activity. Active income includes wages, salaries, tips, commissions, and income from businesses in which the taxpayer materially participates. For tax planning purposes, active income is distinguished from passive income and portfolio income, each of which is subject to different tax rules. Learn more about income planning.
Adjusted Gross Income (AGI)
Total gross income minus specific above-the-line deductions such as contributions to retirement accounts, student loan interest, and self-employment tax. AGI appears on line 11 of Form 1040 and serves as the starting point for calculating taxable income. Many tax credits, deductions, and phase-outs are tied to AGI thresholds, making it a critical figure in tax planning. Learn more about income and entity planning.
Alternative Minimum Tax (AMT)
A parallel tax system that ensures high-income taxpayers pay a minimum amount of federal income tax, even if they have significant deductions or credits under the regular tax system. The AMT recalculates taxable income by adding back certain preference items such as state and local tax deductions, incentive stock option gains, and accelerated depreciation. Taxpayers pay whichever is higher -- the regular tax or the AMT. Learn more about advanced tax planning.
Amended Return
A corrected version of a previously filed tax return, submitted on Form 1040-X for individual returns. Taxpayers file amended returns to correct errors, claim missed deductions or credits, or adjust income reported on the original filing. Under IRC Section 6511, amended returns must generally be filed within three years of the original due date to claim a refund. Learn more about tax compliance.
Amortization
The gradual write-off of an intangible asset's cost over its useful life, similar to depreciation for tangible assets. Common amortizable assets include patents, copyrights, franchise agreements, and Section 197 intangibles such as goodwill. Amortization is typically calculated using the straight-line method over 15 years for Section 197 assets. Learn more about cost recovery strategies.
At-Risk Rules
Tax rules under IRC Section 465 that limit a taxpayer's deductible losses to the amount they have economically at risk in an activity. The at-risk amount generally includes cash invested, the adjusted basis of property contributed, and amounts borrowed for which the taxpayer is personally liable. These rules prevent taxpayers from claiming losses in excess of their actual economic exposure. Learn more about real estate tax planning.
Augusta Rule
A provision under IRC Section 280A(g) that allows homeowners to rent their personal residence for up to 14 days per year without reporting the rental income on their tax return. Business owners can use this rule strategically by having their company rent their personal home for legitimate business meetings or events. The rental payments become a deductible business expense for the company while remaining tax-free to the homeowner. Learn more about business owner tax strategies.
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Backdoor Roth IRA
A strategy that allows high-income earners who exceed Roth IRA income limits to contribute to a Roth IRA indirectly. The taxpayer first makes a nondeductible contribution to a traditional IRA, then converts it to a Roth IRA. The pro-rata rule under IRC Section 408(d)(2) must be considered, as existing pre-tax IRA balances can create a taxable event upon conversion. Learn more about retirement tax strategies.
Basis
The original cost or value of an asset for tax purposes, used to calculate gain or loss upon sale or disposition. Basis can be adjusted upward for improvements and certain expenses, or downward for depreciation, casualty losses, and other deductions taken. Understanding basis is essential for accurately computing capital gains and depreciation deductions on real estate and business assets. Learn more about real estate tax planning.
Beneficial Owner
The individual or entity that ultimately owns or controls an asset, even if legal title is held in another name or through an intermediary. The Corporate Transparency Act requires many companies to report beneficial ownership information to FinCEN. Identifying beneficial owners is important for tax compliance, anti-money laundering regulations, and entity structuring. Learn more about entity and trust planning.
Bonus Depreciation
A federal tax incentive that allows businesses and real estate investors to deduct a significant percentage of the cost of qualifying assets in the year they are placed in service, rather than depreciating them over their full recovery period. Under the One Big Beautiful Bill Act (OBBBA), 100% bonus depreciation has been made permanent for qualifying property. Bonus depreciation is a key component of cost segregation strategies for maximizing first-year tax deductions. Learn more about bonus depreciation.
Boot (in Exchanges)
Cash or non-like-kind property received in a 1031 exchange that does not qualify for tax deferral. When a taxpayer receives boot, the gain attributable to the boot is recognized and taxable in the year of the exchange. Common examples include cash proceeds, mortgage relief in excess of new debt, and personal property received as part of a real estate exchange. Learn more about real estate exchange strategies.
Built-In Gains Tax
A corporate-level tax imposed on S-Corporations that were previously C-Corporations, applicable to gains on assets that existed at the time of the S-election. The built-in gains tax applies if the S-Corporation sells appreciated assets within the recognition period (currently five years) after converting from C-Corporation status. This tax is assessed at the highest corporate rate on the net recognized built-in gain. Learn more about S-Corp tax treatment.
Business Use Percentage
The proportion of an asset's total use that is attributable to business purposes, expressed as a percentage. The business use percentage determines the deductible portion of expenses related to vehicles, home offices, equipment, and other mixed-use assets. Taxpayers must maintain contemporaneous records to substantiate their business use percentage in the event of an IRS audit. Learn more about business deductions.
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C-Corporation
A business entity taxed separately from its owners under Subchapter C of the Internal Revenue Code. C-Corporations pay corporate income tax on profits and shareholders pay tax again on dividends, resulting in double taxation. Despite this, C-Corporations offer advantages including unlimited shareholders, multiple stock classes, and the 21% flat corporate tax rate established by the Tax Cuts and Jobs Act. Learn more about business entity selection.
Capital Gains
The profit realized from the sale of a capital asset such as real estate, stocks, or business interests, calculated as the difference between the sale price and the asset's adjusted basis. Long-term capital gains (on assets held more than one year) are taxed at preferential rates of 0%, 15%, or 20%, depending on the taxpayer's income. Short-term capital gains are taxed as ordinary income. Learn more about capital gains planning.
Capitalization
The process of recording an expenditure as an asset on the balance sheet rather than expensing it immediately, and recovering its cost over time through depreciation or amortization. Under IRC Section 263, amounts paid to acquire, produce, or improve tangible property must generally be capitalized. Capitalization rules are central to determining the proper tax treatment of real estate improvements and business assets. Learn more about capitalization and cost segregation.
Carryforward
The ability to apply unused tax deductions, credits, or losses to future tax years when they cannot be fully utilized in the current year. Common carryforward items include net operating losses (NOLs), excess capital losses, charitable contribution deductions, and various tax credits. Carryforward provisions allow taxpayers to smooth their tax burden across multiple years and maximize the benefit of available deductions. Learn more about tax compliance strategies.
Cash Balance Plan
A type of defined benefit retirement plan that allows business owners and high-income professionals to make substantial tax-deductible contributions, often exceeding $100,000 per year. Each participant has an individual account with a guaranteed annual interest credit, combining the high contribution limits of a defined benefit plan with the portability of a defined contribution plan. Cash balance plans are particularly effective for business owners aged 45 and older seeking to accelerate retirement savings while reducing current taxable income. Learn more about cash balance plans.
Catch-Up Depreciation
A method that allows taxpayers to claim previously unclaimed depreciation deductions on assets that were not properly depreciated in prior years. This is typically accomplished by filing Form 3115 (Application for Change in Accounting Method) to adopt the correct depreciation method. Catch-up depreciation is especially valuable for real estate investors who can retroactively apply cost segregation study results to properties placed in service in earlier years. Learn more about Form 3115 catch-up depreciation.
Charitable Remainder Trust
An irrevocable trust that distributes income to beneficiaries for a specified period, after which the remaining assets pass to a designated charity. The donor receives a partial income tax deduction at the time of the contribution and can defer capital gains on appreciated assets transferred to the trust. Charitable remainder trusts are commonly used in estate planning and for managing concentrated stock or real estate positions. Learn more about trust and estate planning.
Constructive Receipt
A tax doctrine holding that income is taxable when it is made available to the taxpayer without substantial restrictions, even if the taxpayer has not physically received it. For example, a check mailed in December is considered constructively received in that tax year, even if it is not deposited until January. The constructive receipt doctrine prevents taxpayers from deferring income by simply delaying collection. Learn more about income timing strategies.
Cost Basis
The original purchase price of an asset plus any additional costs incurred to acquire, improve, or maintain it, used to determine gain or loss when the asset is sold. For real estate, cost basis includes the purchase price, closing costs, and the cost of capital improvements, minus any depreciation taken. Accurate cost basis tracking is essential for calculating capital gains tax and depreciation deductions. Learn more about real estate tax planning.
Cost Recovery
The process of recouping the cost of a business or investment asset through depreciation, amortization, or other deduction methods allowed by the tax code. The Modified Accelerated Cost Recovery System (MACRS) is the primary cost recovery method used in the United States for tangible property. Cost recovery deductions reduce taxable income and are a fundamental component of real estate and business tax planning. Learn more about cost recovery through cost segregation.
Cost Segregation
An engineering-based tax strategy that accelerates depreciation deductions on commercial and investment real estate by reclassifying building components into shorter-life asset categories. A cost segregation study identifies assets that can be depreciated over 5, 7, or 15 years instead of the standard 27.5 or 39 years, significantly increasing first-year deductions. When combined with bonus depreciation, cost segregation can generate substantial tax savings in the year a property is acquired or improved. Learn more about cost segregation studies.
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Deferred Compensation
An arrangement in which a portion of an employee's or business owner's compensation is paid out at a later date, typically after retirement. Deferred compensation plans can be either qualified (such as 401(k) plans) or nonqualified, each with different tax treatment and regulatory requirements. Properly structured deferred compensation arrangements allow participants to defer income recognition until the year of actual receipt. Learn more about deferred compensation strategies.
Defined Benefit Plan
A retirement plan in which the employer promises a specific monthly benefit upon retirement, calculated using a formula based on factors like salary history and years of service. Contributions to defined benefit plans are tax-deductible to the employer and can be substantially larger than contributions to defined contribution plans. These plans are especially attractive to high-income business owners who want to shelter significant amounts of income from current taxation. Learn more about retirement planning.
Depreciation
The systematic allocation of the cost of a tangible asset over its useful life as defined by the IRS. Depreciation allows property owners and businesses to deduct the cost of assets such as buildings, equipment, and vehicles over time, reducing taxable income each year. Real estate investors commonly depreciate residential rental property over 27.5 years and nonresidential property over 39 years under MACRS. Learn more about depreciation and cost segregation.
Depreciation Recapture
The tax assessed when a taxpayer sells a depreciated asset for more than its adjusted basis, effectively recapturing the tax benefit of prior depreciation deductions. For real estate, unrecaptured Section 1250 gain is taxed at a maximum rate of 25%, while Section 1245 property recapture is taxed as ordinary income. Depreciation recapture is an important consideration in exit planning and 1031 exchange strategies. Learn more about depreciation recapture planning.
Disregarded Entity
A business entity that is not recognized as separate from its owner for federal income tax purposes. The most common example is a single-member LLC, which is treated as a sole proprietorship (or a branch of its owner) unless it elects to be taxed as a corporation. While disregarded for income tax, these entities still provide liability protection and may be recognized for other tax purposes such as employment taxes. Learn more about entity types.
Distribution
A payment of cash or property from a business entity, retirement account, or trust to its owner, beneficiary, or shareholder. The tax treatment of distributions varies depending on the source -- for example, S-Corporation distributions from accumulated earnings are generally not subject to self-employment tax, while retirement plan distributions may be taxed as ordinary income. Understanding distribution rules is critical for minimizing tax on business profits and retirement withdrawals. Learn more about distribution planning.
Domicile
The state or jurisdiction where a taxpayer maintains their permanent legal residence and intends to return, even if they are temporarily living elsewhere. Domicile determines a taxpayer's state income tax obligations and can have significant consequences for high-income individuals living in or moving between high-tax and low-tax states. Changing domicile requires demonstrating intent and taking affirmative steps such as updating voter registration, driver's license, and estate planning documents. Learn more about multi-state tax planning.
Double Taxation
The taxation of the same income at two levels, most commonly referring to the corporate tax structure in which a C-Corporation pays income tax on its profits and shareholders pay tax again when those profits are distributed as dividends. Double taxation is one of the primary reasons business owners choose pass-through entity structures such as S-Corporations, partnerships, and LLCs. Strategic entity structuring can minimize or eliminate the impact of double taxation. Learn more about entity structuring.
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Earned Income
Compensation received for personal services, including wages, salaries, tips, commissions, bonuses, and net self-employment income. Earned income is subject to both income tax and self-employment or payroll taxes and is distinguished from investment income and passive income. The amount of earned income affects eligibility for various credits and deductions, including IRA contributions and the Earned Income Tax Credit. Learn more about income planning.
Economic Substance Doctrine
A judicial doctrine requiring that a transaction have both a meaningful economic purpose beyond tax avoidance and a genuine change in the taxpayer's economic position. Codified in IRC Section 7701(o), transactions lacking economic substance may be disallowed by the IRS, and taxpayers may face a 20% to 40% accuracy-related penalty. All tax planning strategies should be structured with genuine business purposes to withstand economic substance scrutiny. Learn more about IRS compliance.
Effective Tax Rate
The actual percentage of total income paid in taxes, calculated by dividing total tax liability by total taxable or gross income. The effective tax rate is typically lower than a taxpayer's marginal tax rate because of the progressive rate structure, deductions, and credits. Tracking effective tax rate is a key measure of how well a tax planning strategy is performing. Learn more about tax rate optimization.
EIN (Employer Identification Number)
A unique nine-digit number assigned by the IRS to identify a business entity for tax reporting purposes, similar to a Social Security number for an individual. An EIN is required for entities that have employees, operate as corporations or partnerships, or file certain tax returns. Business owners typically obtain an EIN when forming a new entity or opening a business bank account. Learn more about business formation.
Entity Structuring
The process of selecting and organizing the legal structure of a business to optimize tax efficiency, liability protection, and operational flexibility. Common structures include sole proprietorships, LLCs, S-Corporations, C-Corporations, and partnerships, each with different tax implications and benefits. Strategic entity structuring is one of the most impactful tax planning decisions a business owner can make. Learn more about entity structuring.
Estimated Tax Payments
Quarterly tax payments made to the IRS and state tax agencies by taxpayers who do not have sufficient taxes withheld from their income, including self-employed individuals, business owners, and investors. Estimated payments are due on April 15, June 15, September 15, and January 15 of the following year. Failure to make adequate estimated payments can result in underpayment penalties under IRC Section 6654. Learn more about tax compliance.
Estimated Useful Life
The expected period over which a depreciable asset is anticipated to be economically productive and in use by the taxpayer. The IRS assigns specific useful life periods to different asset classes under MACRS, such as 5 years for vehicles, 7 years for office furniture, and 27.5 or 39 years for real property. Cost segregation studies identify asset components with shorter useful lives to accelerate depreciation deductions. Learn more about asset classification.
Exclusion
An amount of income that is specifically exempt from taxation under the Internal Revenue Code. Common exclusions include the Section 121 exclusion for gain on the sale of a primary residence, gifts, life insurance proceeds, and certain foreign earned income. Exclusions reduce gross income and are distinct from deductions, which reduce taxable income after gross income is calculated. Learn more about income exclusion strategies.
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Fair Market Value (FMV)
The price at which property would change hands between a willing buyer and a willing seller, neither being under compulsion and both having reasonable knowledge of relevant facts. FMV is used to determine values for gift and estate tax purposes, charitable contributions, property exchanges, and casualty loss deductions. Appraisals from qualified professionals are often required to substantiate fair market value for tax purposes. Learn more about property valuation in tax planning.
FICA (Federal Insurance Contributions Act)
The federal payroll tax that funds Social Security and Medicare programs, paid jointly by employers and employees. The Social Security portion is 6.2% each (12.4% total) on wages up to the annual wage base, and the Medicare portion is 1.45% each (2.9% total) with no cap. High earners pay an additional 0.9% Medicare surtax on wages exceeding $200,000 (single) or $250,000 (married filing jointly). Learn more about payroll tax planning.
Filing Status
The classification used on a tax return that determines the taxpayer's standard deduction amount, tax bracket thresholds, and eligibility for certain credits and deductions. The five filing statuses are Single, Married Filing Jointly, Married Filing Separately, Head of Household, and Qualifying Surviving Spouse. Choosing the optimal filing status is one of the most fundamental tax planning decisions for individual taxpayers. Learn more about individual tax planning.
Fiscal Year
A 12-month accounting period used for financial reporting and tax filing that does not follow the standard calendar year (January 1 through December 31). Businesses may elect a fiscal year that aligns with their natural business cycle, though S-Corporations, personal service corporations, and certain partnerships face restrictions. A fiscal year end is established when the entity files its first tax return. Learn more about business tax filings.
Form 1040
The primary individual income tax return filed with the IRS by U.S. taxpayers to report annual income, claim deductions and credits, and calculate tax liability. Form 1040 is accompanied by various schedules and attachments, including Schedule A for itemized deductions, Schedule C for business income, and Schedule E for rental and partnership income. Most individual taxpayers must file Form 1040 by April 15 of the year following the tax year. Learn more about individual tax returns.
Form 1065
The annual information return filed by partnerships and multi-member LLCs to report income, deductions, gains, and losses to the IRS. Form 1065 itself does not calculate a tax liability -- instead, the partnership's income and deductions flow through to the individual partners via Schedule K-1. Form 1065 is due on March 15 of the year following the tax year, with a six-month extension available. Learn more about partnership tax filings.
Form 1120-S
The annual income tax return filed by S-Corporations to report income, deductions, and credits to the IRS. Like a partnership return, the S-Corporation's income flows through to shareholders via Schedule K-1 and is reported on their individual returns. Form 1120-S is due on March 15 of the year following the tax year, and late filing can result in significant penalties. Learn more about S-Corporation filings.
Form 3115
The Application for Change in Accounting Method, filed with the IRS to request permission to change how a taxpayer accounts for income, expenses, or depreciation. Form 3115 is commonly used in cost segregation strategies to retroactively reclassify building components and claim catch-up depreciation in a single year via a Section 481(a) adjustment. This form allows taxpayers to capture previously unclaimed depreciation without amending prior-year returns. Learn more about Form 3115.
Fringe Benefits
Non-cash compensation provided by an employer to employees, which may be excluded from the employee's taxable income if they qualify under specific IRC provisions. Common tax-free fringe benefits include health insurance, retirement plan contributions, group-term life insurance (up to $50,000), and commuter benefits. Business owners who operate as C-Corporations or use accountable plans can deduct fringe benefit costs while providing tax-free value to participants. Learn more about fringe benefit planning.
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General Partner
A partner in a partnership who has unlimited personal liability for the debts and obligations of the partnership and typically has management authority. General partners report their share of partnership income on their personal tax returns and are subject to self-employment tax on that income. In limited partnerships, at least one general partner is required, while limited partners generally have liability limited to their investment. Learn more about partnership structures.
Goodwill
An intangible asset representing the premium paid for a business above the fair market value of its identifiable net assets, reflecting factors such as brand reputation, customer relationships, and workforce quality. For tax purposes, goodwill acquired in a business purchase is amortizable over 15 years under IRC Section 197. The allocation of purchase price to goodwill versus other asset categories can significantly impact the buyer's depreciation and amortization deductions. Learn more about business acquisition tax strategies.
Grantor Trust
An irrevocable trust in which the grantor retains certain powers or interests that cause the trust's income to be taxed to the grantor rather than to the trust. Common grantor trust triggers include the power to revoke the trust, borrow without adequate security, or substitute assets. Grantor trusts are widely used in estate planning because assets can grow outside the grantor's taxable estate while the grantor pays the income tax, effectively making a tax-free gift to the trust beneficiaries. Learn more about trust planning.
Gross Income
The total of all income received by a taxpayer from all sources before any deductions, exemptions, or adjustments. Gross income includes wages, business income, rental income, investment income, retirement distributions, and most other forms of economic benefit. IRC Section 61 defines gross income broadly as "all income from whatever source derived," making it the broadest measure of income in the tax code. Learn more about income planning.
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Half-Year Convention
A MACRS depreciation rule that treats all property placed in service during the year as if it were placed in service at the midpoint of the year, regardless of the actual date. Under the half-year convention, taxpayers receive one-half year of depreciation in the first year and one-half year in the final year of the recovery period. If more than 40% of depreciable property is placed in service in the last quarter, the mid-quarter convention applies instead. Learn more about MACRS depreciation rules.
Holding Company
An entity formed primarily to hold and manage ownership interests in other companies, real estate, or investments, rather than to conduct active business operations. Holding companies can provide asset protection, centralized management, and tax planning benefits, including the ability to consolidate income and losses across multiple entities. Real estate investors commonly use holding companies to separate properties and isolate liability risk. Learn more about entity structuring.
Home Office Deduction
A tax deduction available to self-employed individuals and certain employees who use a portion of their home regularly and exclusively for business purposes. The deduction can be calculated using the regular method (based on actual expenses and square footage percentage) or the simplified method ($5 per square foot, up to 300 square feet). Home office deductions reduce both income tax and self-employment tax for qualifying taxpayers. Learn more about business deductions.
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Installment Sale
A sale of property in which at least one payment is received after the tax year of the sale, allowing the seller to spread the recognition of gain over the period payments are received. Under IRC Section 453, installment reporting defers capital gains tax by prorating the gain across each payment based on the gross profit ratio. Installment sales are commonly used in real estate and business sales to manage tax liability and cash flow. Learn more about real estate disposition strategies.
Investment Interest Expense
Interest paid on money borrowed to purchase or hold investment property, such as margin interest on a brokerage account. Under IRC Section 163(d), the deduction for investment interest expense is limited to net investment income for the year, with any excess carried forward to future years. Taxpayers can elect to treat qualified dividends and long-term capital gains as investment income to increase the deduction, but those amounts will then be taxed at ordinary rates. Learn more about investment expense deductions.
IRC (Internal Revenue Code)
The comprehensive body of federal tax law enacted by Congress and codified as Title 26 of the United States Code. The IRC establishes rules for income tax, estate and gift tax, excise taxes, and tax procedure, and is the primary legal authority for all federal tax obligations. Tax professionals reference specific IRC sections -- such as Section 179, Section 199A, and Section 1031 -- when developing and implementing tax planning strategies. Learn more about IRS compliance.
Itemized Deductions
Individual tax deductions claimed on Schedule A of Form 1040 in lieu of the standard deduction, including state and local taxes (capped at $10,000), mortgage interest, charitable contributions, and medical expenses exceeding 7.5% of AGI. Taxpayers should itemize when their total itemized deductions exceed the standard deduction amount for their filing status. Strategic timing of deductible expenses can help taxpayers alternate between standard and itemized deductions to maximize tax savings. Learn more about deduction strategies.
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K-1 (Schedule K-1)
A tax form issued by partnerships, S-Corporations, and trusts to report each partner's, shareholder's, or beneficiary's share of the entity's income, deductions, credits, and other tax items. The information on the K-1 is reported on the recipient's individual tax return to calculate their personal tax liability. K-1s are typically issued by March 15 for partnerships and S-Corporations, and may include complex items such as Section 199A information and basis adjustments. Learn more about K-1 tax reporting.
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Like-Kind Exchange
A transaction under IRC Section 1031 in which a taxpayer exchanges one investment or business property for another of the same nature or character, deferring recognition of capital gains. Since the Tax Cuts and Jobs Act of 2017, like-kind exchange treatment is limited to real property. Properly structured like-kind exchanges allow real estate investors to defer capital gains taxes indefinitely, potentially until death, when a step-up in basis eliminates the deferred gain. Learn more about like-kind exchanges.
LLC (Limited Liability Company)
A flexible business entity that provides its owners (called members) with limited personal liability protection while offering pass-through tax treatment by default. Single-member LLCs are treated as disregarded entities for tax purposes, while multi-member LLCs are taxed as partnerships. LLCs can also elect to be taxed as S-Corporations or C-Corporations, making them one of the most versatile entity structures available. Learn more about LLC vs S-Corp.
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MACRS (Modified Accelerated Cost Recovery System)
The depreciation system used in the United States for most tangible depreciable property placed in service after 1986. MACRS assigns specific recovery periods and depreciation methods to different property classes -- for example, 5 years for vehicles, 7 years for furniture, 15 years for land improvements, and 27.5 or 39 years for real property. Cost segregation studies leverage MACRS classifications to accelerate depreciation deductions on real estate components. Learn more about MACRS depreciation.
Marginal Tax Rate
The tax rate applied to the last dollar of taxable income, determined by the taxpayer's tax bracket. The U.S. federal income tax system uses a progressive rate structure with seven brackets, ranging from 10% to 37% for the 2026 tax year. Understanding the marginal rate is essential for evaluating the tax impact of additional income, deductions, and investment decisions. Learn more about tax rate planning.
Material Participation
A level of involvement in a trade or business activity that determines whether the taxpayer's income or loss is classified as active or passive under IRC Section 469. The IRS has established seven tests for material participation, the most common being participation of more than 500 hours during the tax year. Real estate professionals who materially participate in their rental activities can treat rental losses as nonpassive, allowing them to offset other income. Learn more about material participation and REPS.
MERP (Medical Expense Reimbursement Plan)
An employer-funded plan that reimburses employees for qualifying medical expenses on a tax-free basis. For business owners operating as C-Corporations, MERP allows the business to deduct the reimbursement while the employee receives the benefit free of income and payroll taxes. S-Corporation shareholders who own more than 2% of the company receive different tax treatment and must include MERP reimbursements in their gross income. Learn more about medical expense planning for business owners.
Modified Adjusted Gross Income (MAGI)
An adjusted version of AGI used to determine eligibility for various tax benefits, calculated by adding back certain deductions and exclusions to AGI. The specific add-backs vary depending on the provision -- for example, MAGI for the Net Investment Income Tax includes adjusted gross income plus any foreign earned income exclusion. MAGI thresholds affect eligibility for Roth IRA contributions, premium tax credits, education credits, and the 3.8% Net Investment Income Tax. Learn more about MAGI planning.
Multi-Member LLC
A limited liability company with two or more members that is taxed as a partnership by default under federal tax rules. Multi-member LLCs file Form 1065 and issue Schedule K-1s to each member reporting their share of income, deductions, and credits. Like single-member LLCs, multi-member LLCs can elect to be taxed as an S-Corporation or C-Corporation if doing so provides a tax advantage. Learn more about LLC structures.
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Net Investment Income Tax (NIIT)
A 3.8% surtax on net investment income imposed on individuals, estates, and trusts with modified adjusted gross income above certain thresholds ($200,000 for single filers, $250,000 for married filing jointly). Net investment income includes interest, dividends, capital gains, rental income, and royalties, minus allocable deductions. Real estate professionals who materially participate in their rental activities can exclude rental income from the NIIT calculation. Learn more about NIIT planning.
Nexus
The minimum level of connection or presence a business must have with a state before that state can impose its taxes on the business. Nexus can be established through physical presence (employees, offices, property) or economic activity (sales revenue exceeding a threshold). Understanding nexus is essential for multi-state businesses to ensure proper tax compliance and avoid unexpected state tax liabilities. Learn more about multi-state tax obligations.
Nonqualified Deferred Compensation (NQDC)
A broad category of deferred compensation plans that do not meet the qualification requirements of IRC Section 401(a), such as 401(k) plans or pension plans. NQDC plans are subject to IRC Section 409A, which imposes strict rules on the timing of deferrals and distributions, with severe penalties for noncompliance. These plans are commonly used by businesses to provide supplemental retirement benefits to key executives and highly compensated individuals. Learn more about deferred compensation planning.
Nonrecourse Debt
A loan secured by collateral (typically real property) for which the borrower is not personally liable beyond the collateral itself. In the context of partnerships and LLCs, nonrecourse debt can increase a partner's basis and their ability to deduct allocated losses. The allocation of nonrecourse debt among partners is governed by complex regulations under IRC Section 752 and Regulation 1.704-2. Learn more about real estate debt and basis.
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OBBBA (One Big Beautiful Bill Act)
Federal legislation passed in 2025 that made 100% bonus depreciation permanent for qualifying assets, reversing the scheduled phase-down that began under the Tax Cuts and Jobs Act. The OBBBA restored the ability for businesses and real estate investors to immediately deduct the full cost of qualifying depreciable assets in the year placed in service. This legislation has significant implications for cost segregation strategies and real estate investment planning. Learn more about the OBBBA and bonus depreciation.
Opportunity Zone
A designated economically distressed community where investments in new businesses or real estate can qualify for preferential capital gains tax treatment under IRC Section 1400Z. Taxpayers who invest capital gains into a Qualified Opportunity Fund can defer recognition of those gains, and gains on the Opportunity Zone investment itself may be permanently excluded from tax if held for at least 10 years. The program was established by the Tax Cuts and Jobs Act of 2017 to stimulate economic development in underserved areas. Learn more about Opportunity Zone investing.
Ordinary and Necessary
A standard under IRC Section 162 that a business expense must meet to be deductible -- it must be both common and accepted in the taxpayer's trade or business (ordinary) and helpful and appropriate for the business (necessary). The expense does not need to be indispensable, but it must have a clear business purpose and be reasonable in amount. The ordinary and necessary standard is the foundation for deducting business expenses on Schedule C, Form 1065, or corporate returns. Learn more about business expense deductions.
Ordinary Income
Income taxed at the regular federal income tax rates, which range from 10% to 37% under the current progressive rate structure. Ordinary income includes wages, business income, short-term capital gains, interest, and rental income. Ordinary income is distinguished from long-term capital gains and qualified dividends, which are taxed at preferential rates, making the classification of income a key tax planning consideration. Learn more about income classification.
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Partnership Agreement
A legal document governing the rights, responsibilities, and obligations of partners in a partnership or multi-member LLC. The partnership agreement specifies how income, losses, distributions, and management responsibilities are allocated among the partners. For tax purposes, the agreement controls how items are allocated on Schedule K-1, provided the allocations have substantial economic effect under IRC Section 704(b). Learn more about partnership tax planning.
Passive Activity Loss (PAL)
A loss from a trade or business activity in which the taxpayer does not materially participate, or from a rental activity (which is generally passive by default). Under IRC Section 469, passive activity losses can only be used to offset passive income -- they cannot be deducted against active or portfolio income unless an exception applies. Real estate professionals who meet the qualifications under IRC Section 469(c)(7) can reclassify rental losses as nonpassive. Learn more about passive loss strategies.
Passive Income
Income generated from a trade or business in which the taxpayer does not materially participate, or from rental activities. Passive income is subject to specific rules under IRC Section 469 that limit the ability to offset passive losses against active income. Common sources of passive income include rental properties, limited partnerships, and ownership interests in businesses where the taxpayer is not actively involved. Learn more about rental income planning.
Pass-Through Entity
A business entity that does not pay tax at the entity level -- instead, income and losses "pass through" to the owners' individual tax returns. S-Corporations, partnerships, multi-member LLCs, and sole proprietorships are all pass-through entities. Pass-through structures avoid the double taxation that applies to C-Corporations and allow owners to benefit from the Section 199A qualified business income deduction. Learn more about pass-through entity planning.
Placed in Service
The date on which a depreciable asset is ready and available for its intended use, regardless of whether it is actually being used at that time. The placed-in-service date determines when depreciation begins and which year's tax rules apply for bonus depreciation and other incentives. For real estate, a property is generally placed in service when it is ready for occupancy or rental, even if it has not yet been rented. Learn more about depreciation timing.
PTET (Pass-Through Entity Tax)
A state-level tax election that allows partnerships and S-Corporations to pay state income tax at the entity level, enabling the owners to deduct the tax payment as a business expense on their federal return. The PTET was developed as a workaround to the $10,000 federal cap on state and local tax (SALT) deductions imposed by the Tax Cuts and Jobs Act. Most states now offer some form of PTET election, and making the election can result in significant federal tax savings for pass-through entity owners. Learn more about PTET strategies.
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QBI Deduction (Qualified Business Income Deduction)
A deduction under IRC Section 199A that allows eligible taxpayers to deduct up to 20% of their qualified business income from pass-through entities, sole proprietorships, and rental activities. The deduction is subject to limitations based on taxable income, the type of business (SSTB restrictions apply), and the amount of wages paid and property held by the business. The QBI deduction was a major tax benefit introduced by the Tax Cuts and Jobs Act. Learn more about the QBI deduction.
Qualified Business Income (QBI)
Net income from a qualified trade or business operated as a sole proprietorship, partnership, S-Corporation, or trust, excluding certain investment income and reasonable compensation. QBI is the starting point for calculating the Section 199A deduction and includes income, gains, deductions, and losses from qualifying domestic business activities. Properly identifying and categorizing QBI is essential for maximizing the 20% pass-through deduction. Learn more about qualified business income.
Qualified Improvement Property (QIP)
Interior improvements to nonresidential real property that are made after the building is placed in service. QIP has a 15-year MACRS recovery period and is eligible for bonus depreciation, making it a valuable asset class for commercial tenants and building owners who invest in renovations. Qualifying improvements include most interior work but specifically exclude enlargements, elevators, escalators, and changes to the internal structural framework. Learn more about QIP and cost segregation.
Qualified Opportunity Fund (QOF)
An investment vehicle organized as a corporation or partnership that holds at least 90% of its assets in qualified opportunity zone property. Investors who roll capital gains into a QOF within 180 days can defer those gains and, if the investment is held for at least 10 years, permanently exclude any appreciation on the QOF investment from taxation. QOFs must invest in qualifying business property, business stock, or partnership interests within designated Opportunity Zones. Learn more about Opportunity Zone funds.
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Real Estate Professional Status (REPS)
A tax classification under IRC Section 469(c)(7) that allows qualifying taxpayers to treat rental real estate activities as nonpassive, enabling them to deduct rental losses against active income. To qualify, the taxpayer must spend more than 750 hours per year in real property trades or businesses and more than half of their total working hours in those activities. REPS is one of the most powerful tax strategies for real estate investors, particularly when combined with cost segregation and bonus depreciation. Learn more about Real Estate Professional Status.
Real Property
Land and anything permanently attached to it, including buildings, structures, and improvements. For tax purposes, real property is distinguished from personal property and is subject to specific depreciation rules -- residential real property is depreciated over 27.5 years, and nonresidential real property over 39 years under MACRS. The classification of property as real versus personal is central to cost segregation studies and 1031 exchange eligibility. Learn more about real property tax treatment.
Reasonable Compensation
The amount of salary or wages that an S-Corporation must pay to its shareholder-employees that is considered fair and appropriate for the services they provide to the business. Reasonable compensation is subject to payroll taxes, and the IRS scrutinizes S-Corporations that pay unreasonably low salaries to avoid payroll taxes on distributions. Setting reasonable compensation requires considering factors such as job duties, experience, hours worked, and comparable salaries in the same industry and geographic area. Learn more about S-Corp reasonable compensation.
Recapture
The process by which previously claimed tax benefits -- such as depreciation deductions, credits, or losses -- are added back to income when the underlying asset is sold or the qualifying conditions are no longer met. Depreciation recapture under Sections 1245 and 1250 is the most common form, requiring taxpayers to recognize ordinary income or pay tax at the 25% unrecaptured Section 1250 gain rate. Understanding recapture is essential for planning asset dispositions and evaluating the true after-tax benefit of depreciation strategies. Learn more about recapture planning.
Required Minimum Distribution (RMD)
The minimum amount that must be withdrawn annually from certain retirement accounts, including traditional IRAs, 401(k) plans, and other tax-deferred retirement plans, once the account owner reaches the applicable age. Under current law, RMDs generally begin at age 73. Failure to take the required distribution results in a 25% excise tax on the amount that should have been withdrawn. Learn more about retirement distribution planning.
Retained Earnings
The cumulative net income of a corporation that has not been distributed to shareholders as dividends. For C-Corporations, excessive accumulation of retained earnings beyond reasonable business needs may trigger the accumulated earnings tax under IRC Section 531. In S-Corporations, retained earnings (known as the accumulated adjustments account or AAA) are tracked differently and generally can be distributed to shareholders tax-free to the extent of the shareholder's stock basis. Learn more about corporate earnings management.
Revenue Ruling
An official interpretation by the IRS of how the Internal Revenue Code, tax treaties, or regulations apply to a specific set of facts. Revenue rulings are published in the Internal Revenue Bulletin and provide guidance that taxpayers and practitioners can rely on for tax planning purposes. While not as authoritative as the IRC itself or Treasury Regulations, revenue rulings carry significant weight and indicate the IRS's position on tax issues. Learn more about IRS guidance and compliance.
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S-Corporation
A business entity that has elected to pass its income, losses, deductions, and credits through to its shareholders under Subchapter S of the Internal Revenue Code. S-Corporation shareholders report these items on their individual tax returns, avoiding the double taxation that applies to C-Corporations. A key advantage of S-Corporation status is that distributions to shareholders are not subject to self-employment tax, provided the shareholder receives reasonable compensation. Learn more about S-Corporation tax planning.
Safe Harbor
A provision in the tax code or regulations that provides a simplified method of compliance, shielding taxpayers from penalties or challenges if they follow the prescribed guidelines. Examples include the de minimis safe harbor for expensing small-dollar property, the safe harbor for estimated tax payments (110% of prior year tax for high-income taxpayers), and the Section 199A safe harbor for rental real estate. Meeting a safe harbor eliminates the need to prove compliance through more detailed analysis. Learn more about safe harbor provisions.
Schedule C
An IRS form filed with Form 1040 to report income and expenses from a sole proprietorship or single-member LLC that has not elected corporate tax treatment. Net profit from Schedule C is subject to both income tax and self-employment tax. Schedule C filers can deduct ordinary and necessary business expenses, including home office costs, vehicle expenses, and supplies. Learn more about sole proprietor tax planning.
Schedule E
An IRS form filed with Form 1040 to report income and losses from rental real estate, royalties, partnerships, S-Corporations, estates, and trusts. Rental property owners report income, depreciation, repairs, and other deductions on Part I of Schedule E, while pass-through entity income from K-1s is reported on Part II. Schedule E is one of the most commonly used forms for real estate investors and business owners with pass-through entities. Learn more about rental property tax reporting.
Schedule K-1
A tax document issued by partnerships (Form 1065), S-Corporations (Form 1120-S), and trusts (Form 1041) to report each owner's or beneficiary's share of income, deductions, credits, and other tax items. The information on Schedule K-1 flows to the recipient's individual Form 1040, where it is used to calculate personal tax liability. K-1s often include complex items such as Section 199A qualified business income, basis adjustments, and at-risk limitations. Learn more about Schedule K-1 reporting.
Section 121 Exclusion
A provision under IRC Section 121 that allows homeowners to exclude up to $250,000 ($500,000 for married couples filing jointly) of capital gain from the sale of their primary residence from taxable income. To qualify, the taxpayer must have owned and used the home as their principal residence for at least two of the five years preceding the sale. The Section 121 exclusion can be used repeatedly, though generally not more than once every two years. Learn more about primary residence tax benefits.
Section 179
An IRC provision that allows businesses to immediately deduct the full cost of qualifying tangible personal property and certain improvements in the year the asset is placed in service, rather than depreciating it over time. The Section 179 deduction has an annual dollar limit (adjusted for inflation) and a phase-out threshold based on total property placed in service. Section 179 is particularly useful for small businesses purchasing equipment, vehicles, and machinery. Learn more about Section 179 vs bonus depreciation.
Section 199A
The IRC section that provides the Qualified Business Income (QBI) deduction, allowing eligible taxpayers to deduct up to 20% of qualified business income from pass-through entities and sole proprietorships. The deduction is subject to limitations including taxable income thresholds, specified service trade or business (SSTB) restrictions, and wage/property tests. Section 199A was enacted as part of the Tax Cuts and Jobs Act and is a cornerstone of pass-through entity tax planning. Learn more about the Section 199A deduction.
Section 280A
The IRC section governing the tax treatment of expenses for a dwelling unit used for both personal and rental purposes. Section 280A is particularly relevant for short-term rental owners, as it contains the Augusta Rule (14-day exclusion) and establishes the rules for determining deductible expenses when a property has mixed personal and rental use. Proper application of Section 280A is essential for maximizing deductions on vacation rentals and short-term rental properties. Learn more about short-term rental tax rules.
Section 1031
The section of the Internal Revenue Code that governs like-kind exchanges of real property, allowing taxpayers to defer capital gains and depreciation recapture taxes when exchanging one investment or business property for another. Section 1031 requires strict compliance with identification and closing deadlines and is limited to real property after the Tax Cuts and Jobs Act. Investors can use Section 1031 exchanges to defer taxes indefinitely and build wealth through portfolio repositioning. Learn more about Section 1031 exchanges.
Section 1245
An IRC provision that requires the recapture of depreciation on certain personal property and some real property improvements as ordinary income upon sale. Section 1245 property includes tangible personal property such as machinery, equipment, furniture, and certain building components identified through cost segregation studies. The ordinary income recapture under Section 1245 can result in a higher tax rate on the sale compared to capital gains treatment. Learn more about Section 1245 property.
Section 1250
An IRC provision governing the recapture of depreciation on real property, taxing the gain attributable to prior depreciation deductions at a maximum rate of 25% (known as unrecaptured Section 1250 gain). Section 1250 recapture applies when depreciable real estate is sold for more than its depreciated basis, and any depreciation in excess of straight-line is recaptured as ordinary income. Understanding Section 1250 is critical for tax planning around real estate dispositions and 1031 exchange strategies. Learn more about Section 1250 recapture.
Self-Employment Tax
A tax paid by self-employed individuals to fund Social Security and Medicare, equivalent to the combined employer and employee share of FICA taxes. The self-employment tax rate is 15.3% on net self-employment earnings, consisting of 12.4% for Social Security (up to the annual wage base) and 2.9% for Medicare. Self-employed individuals can deduct the employer-equivalent portion (50%) of self-employment tax as an above-the-line deduction on Form 1040. Learn more about self-employment tax strategies.
SEP IRA (Simplified Employee Pension IRA)
A retirement plan that allows self-employed individuals and small business owners to make tax-deductible contributions of up to 25% of net self-employment income or compensation, subject to an annual dollar limit. SEP IRAs are easy to establish and maintain, with no annual filing requirements, making them popular among sole proprietors and small businesses. Contributions are made solely by the employer and are tax-deductible to the business. Learn more about retirement plan options.
Short-Term Rental (STR)
A property rented to occupants for an average period of seven days or less, often through platforms such as Airbnb and VRBO. Short-term rentals receive unique tax treatment under IRC Section 469, potentially allowing owners who materially participate to treat rental losses as nonpassive and offset them against active income. When combined with cost segregation and bonus depreciation, short-term rental properties can generate substantial first-year tax deductions. Learn more about short-term rental tax strategy.
Single-Member LLC
A limited liability company with one owner that is treated as a disregarded entity for federal income tax purposes by default, meaning its income and expenses are reported directly on the owner's personal tax return (Schedule C or Schedule E). Despite being disregarded for income tax, a single-member LLC provides liability protection for the owner's personal assets. Single-member LLCs can elect to be taxed as an S-Corporation or C-Corporation if a different tax treatment is more advantageous. Learn more about LLC tax elections.
Solo 401(k)
A retirement plan designed for self-employed individuals with no full-time employees other than a spouse, allowing both employee deferrals and employer profit-sharing contributions. Total contributions can reach up to $69,000 per year (plus catch-up contributions for those 50 and older), making it one of the most powerful retirement savings vehicles for the self-employed. Solo 401(k) plans also offer the option of a Roth contribution, providing flexibility in managing current and future tax liability. Learn more about Solo 401(k) plans.
SSTB (Specified Service Trade or Business)
A category of business defined under IRC Section 199A(d)(2) that includes fields such as health, law, accounting, financial services, consulting, and performing arts, among others. Owners of SSTBs face limitations on the Section 199A qualified business income deduction when their taxable income exceeds certain thresholds. At high income levels, SSTB owners may be completely phased out of the QBI deduction, making entity structuring and income planning critical. Learn more about SSTB limitations.
Standard Deduction
A fixed dollar amount that reduces the income on which a taxpayer is taxed, available to those who do not itemize deductions on Schedule A. The standard deduction varies by filing status and is adjusted annually for inflation. Taxpayers should compare their total itemized deductions to the standard deduction each year to determine which option provides the greater tax benefit. Learn more about deduction planning.
Step-Up in Basis
An adjustment that increases the tax basis of inherited assets to their fair market value as of the decedent's date of death, effectively eliminating capital gains tax on any appreciation that occurred during the decedent's lifetime. The step-up in basis applies to most inherited property, including real estate, stocks, and business interests. This provision is a key consideration in estate planning, as it can result in significant tax savings for heirs who sell inherited assets. Learn more about estate and wealth transfer planning.
Straight-Line Depreciation
A depreciation method that spreads the cost of an asset evenly over its useful life, resulting in equal annual deductions. Under straight-line depreciation, the annual deduction is calculated by dividing the asset's depreciable basis by its recovery period (e.g., 27.5 years for residential rental property or 39 years for commercial property). While simpler than accelerated methods, straight-line depreciation results in smaller deductions in the early years compared to MACRS accelerated schedules. Learn more about depreciation methods.
Substantial Authority
A standard of tax reporting that requires a taxpayer's position to be supported by a meaningful level of legal authority, greater than "reasonable basis" but less than "more likely than not." Taxpayers who take a position on their return that meets the substantial authority standard are protected from the accuracy-related penalty under IRC Section 6662, even if the position is ultimately rejected by the IRS. Sources of authority include the IRC, Treasury Regulations, revenue rulings, court cases, and legislative history. Learn more about tax reporting standards.
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Tax Advisory
Professional guidance provided by qualified tax professionals to help individuals and businesses minimize their tax liability through legal strategies, compliance, and planning. Tax advisory services go beyond basic preparation to include proactive strategies such as entity structuring, depreciation optimization, retirement planning, and income timing. Working with a dedicated tax advisor can result in significant long-term savings compared to a compliance-only approach. Learn more about our tax advisory services.
Tax Bracket
A range of taxable income that is subject to a specific marginal tax rate in the federal progressive income tax system. The United States currently has seven federal tax brackets for individuals, with rates of 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Only the income within each bracket is taxed at that bracket's rate, so a taxpayer's overall effective tax rate is lower than their marginal rate. Learn more about tax bracket planning.
Tax Credit
A dollar-for-dollar reduction in the amount of tax owed, which is more valuable than a tax deduction of the same amount. Tax credits may be nonrefundable (reducing tax to zero but no further), refundable (payable even if no tax is owed), or partially refundable. Common credits include the Child Tax Credit, the Earned Income Tax Credit, energy efficiency credits, and the Research and Development Credit. Learn more about tax credit strategies.
Tax Deduction
An expense that reduces a taxpayer's taxable income, thereby lowering the amount of tax owed based on the taxpayer's marginal tax rate. Deductions can be taken above the line (reducing AGI) or below the line (as itemized or standard deductions reducing taxable income). A $10,000 deduction for a taxpayer in the 37% bracket saves $3,700 in tax, compared to a $10,000 credit, which saves $10,000 regardless of bracket. Learn more about maximizing deductions.
Tax Deferral
A strategy that postpones the payment of taxes to a future period, allowing the taxpayer to retain and invest the funds that would otherwise have been paid in tax. Common tax deferral mechanisms include 1031 exchanges, retirement plan contributions, installment sales, and Opportunity Zone investments. While deferral does not eliminate the tax obligation, the time value of money and potential for reinvestment can make deferral strategies highly advantageous. Learn more about tax deferral strategies.
Tax-Exempt
Income, organizations, or transactions that are not subject to federal, state, or local income tax. Common examples include interest on municipal bonds, income earned by qualifying nonprofit organizations under IRC Section 501(c)(3), and certain retirement plan distributions (Roth accounts). Tax-exempt status is distinct from tax-deferred status, in which the tax is postponed rather than eliminated. Learn more about tax-exempt planning.
Tax Planning
The analysis of a taxpayer's financial situation and the strategic arrangement of their affairs to minimize tax liability within the bounds of the law. Effective tax planning considers current-year obligations, multi-year projections, entity structure, timing of income and deductions, retirement planning, and estate considerations. Proactive tax planning -- conducted throughout the year rather than only at filing time -- consistently produces better outcomes than reactive preparation. Learn more about our tax planning services.
Tax Preparation
The process of compiling, calculating, and filing tax returns with the IRS and state tax agencies. Tax preparation involves gathering financial records, applying the correct tax forms and schedules, calculating tax liability, and submitting the completed return by the applicable deadline. While tax preparation is focused on compliance and accuracy for the current filing period, it is most effective when combined with ongoing tax planning and advisory services. Learn more about tax preparation and compliance.
Trustee
The individual or entity appointed to manage and administer a trust in accordance with its terms and applicable law, holding a fiduciary duty to act in the best interests of the trust beneficiaries. Trustees are responsible for managing trust assets, making distributions, filing trust tax returns (Form 1041), and complying with the terms of the trust instrument. The choice of trustee can have significant tax and estate planning implications, particularly for grantor trusts and irrevocable trusts. Learn more about trust administration.
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Underpayment Penalty
A penalty assessed by the IRS when a taxpayer fails to pay enough estimated tax or withholding throughout the year to cover their tax liability. The penalty is calculated on Form 2210 and is based on the underpayment amount multiplied by the IRS's quarterly interest rate. Taxpayers can avoid the penalty by paying at least 90% of their current-year tax liability or 100% (110% for high-income taxpayers) of the prior year's tax liability through withholding and estimated payments. Learn more about avoiding IRS penalties.
Useful Life
The period over which a depreciable asset is expected to be functional and economically productive for the taxpayer. For tax purposes, useful life is determined by the IRS's MACRS classifications and may differ from the asset's actual physical life. A cost segregation study identifies building components with shorter useful lives, enabling accelerated depreciation and increased tax deductions in the early years of ownership. Learn more about useful life and depreciation.
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Withholding
The portion of an employee's income or other payment that is deducted and remitted directly to the IRS by the payer to cover the recipient's anticipated tax liability. Common forms of withholding include federal income tax withholding on wages, backup withholding on investment income, and withholding on nonresident alien income. Proper withholding helps taxpayers avoid underpayment penalties and manage their cash flow throughout the year. Learn more about withholding and tax compliance.