Alternative Minimum Tax Calculator USA

Result:

AMTI (Alternative Minimum Taxable Income): $0

Taxable AMT Income: $0

Estimated AMT: $0

What Is the Alternative Minimum Tax (AMT)?

The Alternative Minimum Tax is a parallel federal tax system that ensures high-income earners pay a minimum level of tax, regardless of how many deductions or credits they may claim under regular tax rules.

Who Is Subject to AMT?

• High-income earners with many itemized deductions
• Taxpayers exercising incentive stock options (ISOs)
• Individuals claiming significant exemptions or state/local deductions

How Does This Calculator Work?

1. Enter your total income and deductions.
2. Set your AMT exemption (based on IRS guidelines).
3. The tool calculates your AMTI, subtracts exemption, and applies AMT rates of 26% and 28%.

2025 AMT Exemptions (for reference)

• Single: $81,300
• Married Filing Jointly: $126,500

Key Facts About AMT

• Itemized deductions like state taxes and miscellaneous expenses are not allowed under AMT.
• Investment interest and personal exemptions are recalculated.
• Employers do not withhold AMT — it’s calculated at filing.

Why AMT Exists

Originally enacted to ensure that wealthy taxpayers pay a minimum level of tax, AMT now affects many middle-to-upper income earners, especially those in high-tax states.

Disclaimer

This is an estimation tool and not a substitute for professional tax advice. Always consult the IRS or a tax advisor for official guidance and filings.