Qualified Business Income (QBI) Deduction
IRC Section 199A provides a 20% deduction on qualified business income for business owners, real estate investors, and other pass-through entity owners. A real estate partnership generating $500,000 in net income provides a $100,000 QBI deduction (20% of $500,000), worth $35,000 in federal tax savings at a 35% effective rate. W-2 wage limitations and property basis limitations apply above $182,050 in taxable income (2024), potentially reducing the deduction for higher-income taxpayers.
QBI Definition and Scope
QBI is ordinary business income from pass-through entities (partnerships, S-corporations, LLCs, sole proprietorships, trusts). Capital gains, investment income, and W-2 wages don't qualify. Real estate rental income qualifies if the owner materially participates or qualifies for REPS (Real Estate Professional Status). Dividends, interest, and commodity gains don't qualify.
Pass-Through Entity Structures and QBI
QBI applies to: sole proprietors, partnerships, S-corporations, LLCs taxed as partnerships, trusts, and estates. C-corporations don't use QBI; they claim corporate-level deductions. Choosing pass-through treatment (S-corp vs. C-corp, partnership vs. corporation) impacts QBI eligibility. A profitable business structured as a C-corporation doesn't qualify for QBI.
W-2 Wage and Property Basis Limitations
Above $182,050 in taxable income (2024, indexed annually), QBI deduction is limited to the greater of: (1) 20% of QBI, or (2) the lesser of 20% of QBI or 20% of taxable income, limited by W-2 wages and property basis. For high-income taxpayers, this limitation can reduce the QBI deduction significantly. A pass-through with $500,000 QBI and $100,000 W-2 wages paid might be limited to $20,000 in QBI deduction (20% of $100,000 W-2 wages) instead of the full $100,000 (20% of $500,000 QBI).
W-2 Wage Calculation
W-2 wages include wages paid to employees plus the employer's share of FICA taxes (but not the employee's share). Independent contractors don't count as W-2 wages; only employees do. Calculating W-2 wages for limitation purposes uses Form W-2 box amounts for wages paid in the year (not accrued).
Property Basis for QBI Limitation
Basis of business property used to generate QBI contributes to the W-2/property limitation. The limitation formula uses basis of property at year-end. Properties not used to generate QBI (personal use, rental to others, non-operating assets) don't count. Real estate investors' building basis counts toward the property limitation; equipment and inventory count as well.
Taxable Income Threshold and Phase-Out
QBI limitations apply only above the taxable income threshold ($182,050 single, $364,200 married filing jointly in 2024, indexed annually). Below the threshold, you claim the full 20% QBI deduction without W-2 wage or property limitations. This simplifies planning for smaller businesses staying below the threshold.
Real Estate Professional QBI Planning
Real estate professionals qualifying for REPS can claim QBI on rental income. A REPS-qualifying real estate investor with $500,000 in rental income can claim $100,000 QBI deduction (20% of $500,000) without W-2 wage limitations, as long as taxable income stays below the threshold or W-2 wages support the limitation.
S-Corporation Salary Strategy and QBI
S-corporation owners can use a tax planning strategy: take a reasonable W-2 salary, reducing self-employment tax and increasing W-2 wage limitations for QBI, then distribute remaining income as non-W-2 dividends subject to QBI. A business with $200,000 net income might take $100,000 W-2 salary (increasing W-2 wage basis) and distribute $100,000 dividends (not subject to self-employment tax but subject to QBI).
Excluded Businesses and Limitations
Specified Service Trades or Businesses (SSTBs) like health, consulting, financial services, and athletics have additional QBI limitations. SSTBs earning above the taxable income threshold cannot claim QBI at all. Determine if your business is classified as an SSTB, as this eliminates QBI eligibility for high-income SSTB owners.
Coordination with Other Deductions
QBI deduction is taken on Individual Income Tax Return Form 1040 (Schedule 1) after calculating taxable income. It reduces taxable income for federal income tax purposes but doesn't reduce income for self-employment tax, net investment income tax (NIIT), or state income tax purposes (unless the state has its own QBI deduction).
Planning Considerations
If you own a pass-through business generating significant income, model QBI deduction impacts below and above the taxable income threshold. Consider whether S-corporation election or increased W-2 wages would increase the W-2 wage limitation for QBI. Verify that your business doesn't fall into an SSTB category that would eliminate QBI eligibility.