Alternative Minimum Tax Calculator (US)
Estimate US Alternative Minimum Tax (AMT) using simplified AMTI, exemption, and tentative minimum tax logic.
AMT estimate details
This calculator auto-updates when values change.
Use the amount that applies to your tax year and filing status.
This is a simplified AMT estimator and does not replace IRS Form 6251. AMT rules include exemptions, phaseouts, credits, preference items, and detailed adjustments that are not fully modeled here.
Results
Results update automatically.
Estimated AMT owed
$0.00
Your simplified AMTI is $200,000.00. After the exemption, tentative minimum tax is $29,718.00.
Visual breakdown
About This Alternative Minimum Tax Calculator (US)
This calculator gives a simplified estimate for a tax planning question that can involve detailed IRS rules.
Use it to understand the basic mechanics and compare scenarios, not as a filing calculation.
How to Use This Calculator
- 1
Enter your tax profile
Add your income, deductions, contribution, or tax details depending on the calculator.
- 2
Review the automatic result
The calculator updates the main estimate and detailed breakdown immediately.
- 3
Check the assumptions
These calculators use simplified logic, so review the disclaimer and excluded rules.
- 4
Compare scenarios
Change values to see how different assumptions affect the estimate.
Frequently Asked Questions
Is this calculator exact?v
No. It is a simplified estimate designed for planning and comparison only.
Does this replace tax advice?v
No. It is not tax, legal, accounting, or financial advice.
Why might actual results differ?v
Actual results can differ because of IRS rules, phaseouts, filing status, credits, deductions, limits, and personal circumstances.
Does this calculator auto-update?v
Yes. Results update automatically when you change the inputs.