Calculators

Three calculators. One clear picture.

Each tool handles a different part of the equity tax puzzle. Use them together for a complete view of your situation — updated for 2026 and the One Big Beautiful Bill Act.

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Most popular
AMT Calculator
Find out if exercising your ISOs will trigger the Alternative Minimum Tax — and by exactly how much. See a full breakdown of regular tax vs. AMT, with a free and premium mode.
Free + premium modes2023–2026 tax yearsAll filing statusesFull deduction support
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Strategic planning
ISO Planner
Calculate exactly how many ISO options you can exercise this year without triggering any additional AMT. Shows per-grant exercise plans and tax savings vs. exercising everything.
Up to 3 grantsExercise budget calculationSavings comparisonAMT credit tracking
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Most detailed
RSU Calculator
See your complete RSU tax liability across all components — federal income tax, Social Security, Medicare, NIIT, and state taxes for 30 states. Includes a withholding comparison to show exactly how much you'll owe at filing.
30 statesUp to 12 vesting eventsWithholding gap analysisAll payroll taxes
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