Estimate your combined federal and Iowa state income tax liability in under 60 seconds. Updated with the latest 2026 brackets and FICA rates.
Iowa has a flat income tax rate of 3.8% for the 2026 tax year. Iowa transitioned to a flat income tax rate of 3.8% for 2025, down from its previous graduated system. The state also fully exempts retirement income from state taxation.
Understanding how your state tax brackets work is essential for effective tax planning. Since Iowa uses a flat rate, calculating your state tax is straightforward — simply multiply your taxable income by 3.8%.
| Tax Rate | Income Range | Tax Owed |
|---|---|---|
| 3.8% | Above $0 | $0 + 3.8% of amount over $0 |
Source: Iowa Department of Revenue. Brackets shown for single filers, tax year 2025 (filed in 2026).
Sales Tax: Iowa has a state sales tax rate of 6.0%. Local jurisdictions may add additional sales tax.
Federal income tax applies to all U.S. taxpayers regardless of state. Below are the 2026 federal brackets for single filers.
| Rate | Single Filer Income Range |
|---|---|
| 10% | $0 – $11,925 |
| 12% | $11,925 – $48,475 |
| 22% | $48,475 – $103,350 |
| 24% | $103,350 – $197,300 |
| 32% | $197,300 – $250,525 |
| 35% | $250,525 – $626,350 |
| 37% | Above $626,350 |
The standard deduction for single filers in 2026 is $15,000. Married filing jointly: $30,000.
Source: IRS Revenue Procedure for tax year 2025.
FICA taxes fund Social Security and Medicare and are calculated on gross wages before deductions.
| Tax | Rate | Wage Base |
|---|---|---|
| Social Security | 6.2% | First $168,600 |
| Medicare | 1.45% | All wages |
| Additional Medicare | 0.9% | Wages above $200,000 |
The minimum wage in Iowa for 2026 is $7.25/hour, which is the federal minimum rate. Federal rate applies At full-time hours (40 hours/week, 52 weeks), this equals approximately $15,080/year before taxes.
The median household income in Iowa is approximately $72,000, based on U.S. Census Bureau American Community Survey estimates. Use the calculator above to see how your income compares after federal and state taxes.
Starting a business in Iowa requires filing Articles of Organization with the state. Here are the key costs:
| Item | Cost | Frequency |
|---|---|---|
| Articles of Organization Filing | $50 | One-time |
| Biennial report | $60 | Yearly |
| Registered Agent | $0 – $150/yr | Yearly |
Source: Iowa Secretary of State.
Northwest Registered Agent handles all the paperwork for $39 + state fee. Includes free registered agent service for the first year, privacy protection, and compliance alerts.
Start My Iowa LLCIowa has a flat income tax rate of 3.8% for the 2026 tax year (single filers).
Iowa has a state sales tax rate of 6.0%. Local jurisdictions may add additional sales tax.
The minimum wage in Iowa for 2026 is $7.25 per hour. Federal rate applies
Filing an LLC in Iowa costs $50 for the Articles of Organization. Biennial report: $60.
The median household income in Iowa is approximately $72,000, based on U.S. Census Bureau estimates.