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AMT calculator

What will exercising ISOs cost in AMT?

See the AMT from an ISO exercise under 2026 rules, and the most shares you can exercise this year before AMT applies.

Your tax profile (used by every tool)

ISO exercise AMT calculator (2026)

Uses your tax profile above and the standard deduction, and assumes you hold the shares past December 31. 2026 AMT exemption: $90,100 single / $140,200 joint, phasing out at 50¢ per dollar above $500K / $1M.

Estimated AMT from this exercise
$58,186
Bargain element (spread)$235,000
Cash to exercise$45,000
Regular federal tax$61,468
Tentative minimum tax$119,654
Total cash needed$103,186
To avoid AMT, exercise about 1,132 shares this year and spread the rest across future years. AMT you pay may come back later as a credit.

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