Iowa Tax Tables for 2025
The 2025 Iowa Tax Tables summarise the state-level rules applied to wages, deductions, credits and taxable income. These tables match the rules used by the Iowa State Tax Calculator 2025.
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Iowa Tax Tables for 2025
The tables below outline the income tax structure, deduction amounts, state-level credits and payroll-related rules used for Iowa in 2025. Iowa applies a flat income tax to this filing status. All taxable income is taxed at the same rate, with no marginal brackets. This table shows the single rate used in calculations. To understand how flat tax tables differ from progressive systems, see our Tax Tables guide.
Single – Flat Income Tax (2025)
A single flat tax rate applies to all taxable income for Single filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.8% |
Married filing jointly – Flat Income Tax (2025)
A single flat tax rate applies to all taxable income for Married filing jointly filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.8% |
Married filing separately – Flat Income Tax (2025)
A single flat tax rate applies to all taxable income for Married filing separately filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.8% |
Head of household – Flat Income Tax (2025)
A single flat tax rate applies to all taxable income for Head of household filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.8% |
Widowed – Flat Income Tax (2025)
A single flat tax rate applies to all taxable income for Widowed filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.8% |
Iowa Standard Deduction(2025)
State-level standard deduction amounts for each filing status.
| Filing Status | Amount |
|---|---|
| Single | $0 |
| Married filing jointly | $0 |
| Married filing separately | $0 |
| Head of household | $0 |
| Widowed | $0 |
Iowa Tax Tables for Related Years
These related years are often reviewed together for comparing bracket changes, deductions and Iowa updates:
Frequently Asked Questions
Can I add extra Iowa/Local withholding?
Yes—enter an additional amount per paycheck to target a $0 estimate at year-end.
Adoption credit in Iowa?
Iowa provides an adoption tax credit with eligibility rules—see the Credits area.
Partial-year residents—how to apportion?
Use the part-year option and enter Iowa-source wages/months to model split-year results.
Bond yield after tax
See Bond Yield and Yield to Maturity.
Do tips count toward Iowa income?
Yes—reportable tips are wage income and subject to Iowa tax.
Important Notes
All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.