Iowa Tax Brackets 2025
Iowa state income tax rates for tax year 2025 — a flat 3.8% on all taxable income.
Tax year
2025
Type
Flat
Rate range
Flat 3.8%
Brackets
1
Iowa state tax at common incomes (2025)
| Taxable income | Single — tax | Single — effective | MFJ — tax | MFJ — effective |
|---|---|---|---|---|
| $50,000 | $1,900 | 3.80% | $1,900 | 3.80% |
| $75,000 | $2,850 | 3.80% | $2,850 | 3.80% |
| $100,000 | $3,800 | 3.80% | $3,800 | 3.80% |
| $150,000 | $5,700 | 3.80% | $5,700 | 3.80% |
| $250,000 | $9,500 | 3.80% | $9,500 | 3.80% |
| $500,000 | $19,000 | 3.80% | $19,000 | 3.80% |
State income tax only. Excludes federal tax, FICA, and local/city taxes. Assumes taxable income (after deductions).
How Iowa tax is calculated on $75,000 (2025, single filer)
$75,000 × 3.8% = $2,850.
Assumes $75,000 of state taxable income (after deductions and exemptions). State income tax only — federal tax, FICA, and any local/city tax are separate.
About Iowa's 2025 rates
Iowa applies a single flat 3.8% rate to all taxable income (SF2442, effective 2025). Iowa does not tax Social Security benefits and offers a retirement income exclusion for qualifying taxpayers.
State tax sits on top of federal — see the current federal tax brackets and standard deductions to estimate your full 2025 liability.
Compare every state at the state tax brackets hub, or run a full estimate in the state income tax calculator.
View 2026 Iowa tax brackets for the latest rates.
Frequently asked questions
What are the Iowa tax brackets for 2025?
Iowa has a flat state income tax of 3.8% for tax year 2025 — applied to all taxable income regardless of filing status.
What is the top Iowa income tax rate in 2025?
3.8%.
How much Iowa state tax on $100,000 in 2025?
A single filer with $100,000 of taxable income owes $3,800 in Iowa state income tax for 2025 — an effective rate of 3.80%. Married filing jointly with the same income owes $3,800 (3.80% effective). Federal tax is separate.
Are Iowa 2025 tax brackets the same as 2024?
Bracket thresholds may have changed for 2025 via inflation indexing or legislative action. The figures on this page are the Iowa bracket thresholds in effect for tax year 2025.
Explore more Iowa tax info
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