Equity compensation tax calculators for 2026
Ten focused calculators for vesting RSUs, ISO AMT, 83(b) elections and QSBS.
- 2026 IRS figures
- Runs in your browser
- No signup, no email
Updated November 4, 2026 Sources and methodology
Pick your situation
- RSU Tax Calculator Start here if shares vest. Federal tax on vesting RSUs, the 22% withholding gap, and what actually lands in your account.
- RSU Withholding Calculator How much tax your employer withheld vs. what you will owe in April, and the safe-harbor fix.
- ISO Tax Calculator AMT at exercise, qualifying vs. disqualifying disposition, and after-tax proceeds at sale.
- ISO AMT Calculator Your AMT crossover point: how much ISO spread you can create before AMT kicks in.
- NSO Tax Calculator Ordinary income at exercise, cost basis, and the capital gain on sale.
- Stock Option Tax Calculator ISO vs. NSO side by side on the same grant: the comparison most tools skip.
- Option Exercise Calculator Cash needed to exercise, tax due at exercise, and the breakeven share price.
- 83(b) Election Calculator File 83(b) or wait for vesting? Quantify both paths, including the LTCG clock.
- QSBS Calculator Tiered 50/75/100% exclusion, the $15M cap and 10× basis under the post-OBBBA rules.
- AMT Calculator (2026) Alternative Minimum Tax with 2026 exemptions, the 50% phaseout, and capital gains.
Built from official IRS figures. Brackets, the standard deduction, AMT exemptions and capital-gain thresholds come from Rev. Proc. 2025-32; withholding rates from Publication 15; section 1202 tiers from 26 U.S.C. 1202 as amended by Pub. L. 119-21. The arithmetic is our own, and state tax is whatever rate you enter. See the methodology page.
Federal brackets used by every calculator
These are the 2026 ordinary income brackets for single filers and married filing jointly. The calculators also support married filing separately and head of household.
| Taxable income | Rate |
|---|---|
| $0 – $12,400 | 10% |
| $12,400 – $50,400 | 12% |
| $50,400 – $105,700 | 22% |
| $105,700 – $201,775 | 24% |
| $201,775 – $256,225 | 32% |
| $256,225 – $640,600 | 35% |
| Over $640,600 | 37% |
| Taxable income | Rate |
|---|---|
| $0 – $24,800 | 10% |
| $24,800 – $100,800 | 12% |
| $100,800 – $211,400 | 22% |
| $211,400 – $403,550 | 24% |
| $403,550 – $512,450 | 32% |
| $512,450 – $768,700 | 35% |
| Over $768,700 | 37% |
Why a dedicated calculator matters
Equity pay breaks the assumptions of a normal paycheck calculator. RSUs are withheld at a flat 22% regardless of your bracket, so a $60,000 vest for someone in the 35% bracket leaves about $7,800 to settle in April. ISOs create no regular tax at exercise but can trigger AMT on a gain you have not realized. NSOs generate two different tax events on the same share: ordinary income at exercise and capital gain at sale. And section 1202 stock now has three exclusion tiers that depend on how long you hold it after a specific 2025 date.
Each calculator isolates one of those mechanics, shows the intermediate rows (marginal rate, withholding, basis, exclusion cap) instead of a single opaque figure, and states which tax year and which IRS publication it follows. If you are not sure which one applies, the overview of equity compensation tax maps each situation to its calculator.
Guides
Common questions
Are these calculators free?
Yes. No account, no email, and nothing is transmitted; the math runs in your browser.
Do they include state tax?
State rules vary too much to model reliably, so each tool takes an optional flat state rate you can pull from your state's schedule. Federal tax is exact; state tax is the rate you enter.
Which tax year is used?
Tax year 2026 throughout: Rev. Proc. 2025-32 brackets, a $16,100 standard deduction for single filers, a $90,100 AMT exemption, and 26%/28% AMT rates with the $244,500 threshold.