Most filers owe no AMT. Enter your AMTI and regular tax to see whether your 2025 tentative minimum tax actually exceeds it — instant, in your browser.
Free 2025 "do I owe AMT?" calculator. You owe AMT only when your tentative minimum tax exceeds your regular federal income tax — the AMT owed is that difference. Enter your AMTI and regular tax to find out; for most filers the answer is $0. Source: IRS Rev. Proc. 2024-40 §2.13 and IRS "2025 Instructions for Form 6251"; AMT rate structure per IRC §55(b)(1). This is an estimator for ordinary-income AMT (it does not model the Part III capital-gains carve-out or AMTI preference add-backs — you enter AMTI and regular tax). Runs entirely in your browser; no data sent to any server. Not tax or legal advice. It runs free in your browser on Gera Tools, with nothing uploaded.
Last updated · Source: Gera Tools
Do I have to pay AMT in 2025?
You owe AMT only if your tentative minimum tax is greater than your regular federal income tax; the AMT you owe is the difference. After the 2017 tax law raised exemptions and phase-out thresholds, far fewer households are affected, so for most filers the answer is no. Common triggers include large incentive-stock-option exercises and very high incomes where the exemption phases out. (Source: IRS 2025 Instructions for Form 6251; Rev. Proc. 2024-40 §2.13.)
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Do I Have to Pay AMT in 2025?
Most filers owe no AMT. You owe it only when your tentative minimum tax exceeds your regular federal tax — and the AMT owed is that difference. Enter your AMTI and regular tax below to see your own answer.
Enter your AMTI, filing status, and regular federal tax below to see the exemption (after phase-out), the taxable excess, the tentative minimum tax at 26%/28%, and whether any AMT is owed on top of regular tax. Everything runs in your browser — no data is transmitted.
Important: This is an estimator for ordinary-income AMT. It does not model the Part III capital-gains / qualified-dividend carve-out, the AMT foreign tax credit, the prior-year minimum-tax credit (Form 8801), or the preference-item add-backs that turn regular taxable income into AMTI — you enter AMTI and regular tax directly. Source: IRS Rev. Proc. 2024-40 §2.13 and IRS “2025 Instructions for Form 6251”; AMT rate structure per IRC §55(b)(1); figures for the 2025 tax year, data as of 2024-10-22. For 2026, AMT changed materially under the One Big Beautiful Bill Act (different exemptions; a 50%, $500k/$1M phase-out). Rates and thresholds change; this is not tax or legal advice.