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Will the alternative minimum tax catch you?

Enter your income and the items AMT adds back — incentive stock options, state and local taxes, and other preferences — and compare your regular tax against the tentative minimum tax.

Your income

01 / INCOME
$
Single

AMT add-backs

02 / PREFERENCES
$
$
$
Total AMT add-backs$0

State and local tax deductions are disallowed under AMT — the full amount you deduct on your regular return gets added back. ISO bargain elements are the most common AMT trigger.

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Give the parallel tax a number.

Enter your AGI and the items AMT adds back — ISOs, SALT, and other preferences — to compare the two taxes.

Last reviewed: October 2026.

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Honed Money provides calculators and educational information for general purposes only. It is not financial, tax, legal, investment, or insurance advice. Estimates are based on the information you enter and the assumptions shown. Actual results will vary. For taxes, retirement, and government benefits, verify with IRS.gov, SSA.gov, or VA.gov. We don’t sell financial products and aren’t paid for calculator results. Use at your own risk.