Tools · State Income Tax
Iowa Income Tax Calculator (2026)
Estimate your Iowa state income tax for 2026. Enter your taxable income and filing status to see what Iowa taxes and your effective state rate, broken out line by line.
Iowa state income tax calculator
- Taxable income entered
- $75,000
- Income taxed by Iowa
- $75,000
- Iowa income tax
- $2,850
Iowa finished its move to a flat tax in 2026: all taxable income is taxed at 3.8%. The rate was 8.53% at the top as recently as 2022. Retirement income is exempt for filers 55 and older.
State figures: Iowa Department of Revenue.
Estimate for 2026 state income tax only, based on annual tax brackets — it excludes federal income tax, Social Security and Medicare, local taxes, and any credits. This is general information, not tax advice.
How Iowa income tax is figured
Iowa applies a single flat rate to your taxable income (after any state deduction or exemption). Iowa finished its move to a flat tax in 2026: all taxable income is taxed at 3.8%. The rate was 8.53% at the top as recently as 2022. Retirement income is exempt for filers 55 and older.
This estimate covers state income tax only. It does not include federal income tax, Social Security and Medicare, or tax credits. It is an annual-bracket estimate, not your final return. This is general information, not tax advice.
Income tax calculators for other states
Same 2026 engine, each with its own state rules.