Iowa Tax Tables for 2026
The 2026 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 2026.
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Iowa Tax Tables for 2026
The tables below outline the income tax structure, deduction amounts, state-level credits and payroll-related rules used for Iowa in 2026. 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 (2026)
A single flat tax rate applies to all taxable income for Single filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.9% |
Married filing jointly – Flat Income Tax (2026)
A single flat tax rate applies to all taxable income for Married filing jointly filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.9% |
Married filing separately – Flat Income Tax (2026)
A single flat tax rate applies to all taxable income for Married filing separately filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.9% |
Head of household – Flat Income Tax (2026)
A single flat tax rate applies to all taxable income for Head of household filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.9% |
Widowed – Flat Income Tax (2026)
A single flat tax rate applies to all taxable income for Widowed filers.
| Bracket | Range | Rate |
|---|---|---|
| 1 | 0 and over | 3.9% |
Iowa Standard Deduction(2026)
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
Do dependents change my Iowa tax?
Yes—several Iowa credits/exemptions depend on dependents. Add them for an accurate result.
Are 529 plan contributions deductible in Iowa?
Yes—College Savings Iowa/IA 529 contributions can be deductible up to an annual cap per beneficiary.
CAGR or compounding for savings goals
Try CAGR or Compound Interest.
Quick FICA sanity check
Use the FICA Calculator to verify OASDI/Medicare for 2026.
How do commuter/transit benefits affect Iowa tax?
Pre-tax transit/parking lower federal wages and typically the Iowa base.
Important Notes
All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.