Your equity taxes,
transparently calculated
Stock options and RSUs come with tax complexity most people don't see until it's too late. Our calculators walk you through AMT exposure, optimal ISO exercise windows, and RSU withholding gaps — in plain English.
The ONLY AMT calculator online that has itemized deductions, capital gains, and more.
Three calculators.
One clear picture.
Each tool handles a different part of the equity tax puzzle — use them together for the full view.
AMT Calculator
Find out if exercising your ISOs will trigger the Alternative Minimum Tax — and estimate by how much.
ISO Planner
Estimate how many ISO options you can exercise this year without triggering additional AMT.
RSU Calculator
Visualize your RSU tax liability — federal, state, Social Security, Medicare, NIIT — and whether you'll owe more at filing.
Designed to be transparent
Every calculation is shown step-by-step. No black boxes.
Enter your income
Salary, capital gains, and any above-the-line deductions you're taking. You only share what's relevant.
Add your equity details
Grant info, strike prices, FMV at exercise, or RSU vesting events. Each calculator guides you through what's needed.
See the full breakdown
Every tax component is itemized — regular income tax, AMT, SSI, Medicare, NIIT, state. No surprises.
Plan your next move
The ISO Planner tells you exactly how many shares to exercise. The RSU calculator tells you what to set aside.
Equity compensation is confusing by design
Most people learn about AMT after they've already exercised too many options. Brokerage tools are optimized to execute trades, not to explain tax consequences. And a CPA appointment runs $300/hr.
Equity Simplified exists to give you the information you need before you make a decision.
No frills
No email newsletters, no spam, no upsells
Shows the math
Every result panel itemizes each component. You can see exactly why you owe what you owe.
Updated annually
Tax brackets, AMT exemptions, SSI wage bases — all updated after the IRS publishes new numbers.
OBBBA-aware
The 2025 tax bill changed AMT phaseout thresholds and SALT caps. Our 2026 calculations reflect the new law.
Learn the fundamentals
All articles →Differences between Alternative Minimum Tax and Regular Income Tax
Compare the two tax systems to see how deductions, exemptions, and brackets shape what you owe.
ISOsIntroduction to the Incentive Stock Option (ISO)
The basics of ISOs — what they are, how they work, and why they matter for your taxes.
AMT BasicsHow to Calculate the Alternative Minimum Tax
A step-by-step walkthrough with 2026 numbers. Follow along with your own figures.
Know before you exercise.
Run the numbers before your next vesting event or option exercise window closes. It takes three minutes.