Tax Calculators

These calculators estimate outcomes using standard assumptions and typical ranges. They are useful for sizing a decision and are not a substitute for analysis of your specific facts, particularly the passive activity rules that determine whether a deduction is usable in the current year.

How to Use a Tax Estimate Responsibly

Start with a realistic input, then change one assumption at a time. A calculator is most useful when it shows which variable drives the result: depreciable basis, reasonable compensation, property class, marginal rate, or the timing of a purchase. Save the inputs you used so an advisor can reproduce the estimate.

Do not treat an estimated deduction as cash savings. The deduction must first be usable on the return. Basis, at-risk rules, passive-activity limits, the excess-business-loss limitation, state conformity, and recapture can all change the economic result. The calculator pages identify the assumptions they make and the rules they do not model.

What These Calculators Cover

• Cost segregation. Size a possible first-year depreciation benefit using property type, land allocation, and a stated reclassification range.
• S corporation elections. Compare estimated employment tax under default pass-through treatment with payroll tax on a supportable owner wage.
• Bonus depreciation and Section 179. Compare first-year federal deductions while recognizing that state rules and asset eligibility can differ.

Use the result to decide whether a deeper analysis is worth doing. It is not a valuation, engineering study, compensation opinion, or tax-return calculation.

For our sourcing and update standards, read the AE Tax Advisors editorial policy.