Self-Employment Tax for Iowa (2026)
Iowa (IA) Key Facts
Federal S E Tax Rate
15.3%
State Income Tax Rate
5.7%
Combined S E + State Rate
21.0%
S E Tax Components
12.4% Social Security + 2.9% Medicare
How This Calculator Works in Iowa
This calculator estimates your total self-employment tax in Iowa, including the federal 15.3% SE tax and Iowa's state income tax. Enter your net SE income to see your liability.
Iowa Overview
Self-employed workers in Iowa pay the federal 15.3% SE tax plus state income tax at up to 5.7%, for a combined burden of approximately 21.0%. Quarterly estimated payments are typically required for both federal and state obligations.
How Iowa Compares
Iowa's combined SE burden of 21.0% compares to Minnesota at 25.1% and Wisconsin at 23.0%. State income tax creates meaningful differences between states.
| State | Top Rate | Notes |
|---|---|---|
| Minnesota | 9.85% | Minnesota has a state income tax on SE income rate of 9.85%. |
| Wisconsin | 7.65% | Wisconsin has a state income tax on SE income rate of 7.65%. |
| Illinois | 4.95% | Illinois has a state income tax on SE income rate of 4.95%. |
Iowa's state income tax on SE income rate of 5.7% compares to a national average of approximately 5.04%. This is above the national average.
Tips for Iowa Residents
- 1Federal self-employment tax is 15.3% (12.4% Social Security + 2.9% Medicare) regardless of state.
- 2Iowa adds state income tax at up to 5.7% on self-employment income, for a combined rate of about 21.0%.
- 3Make quarterly estimated payments for both federal and Iowa state taxes to avoid underpayment penalties.
- 4Deduct half of your SE tax on your federal return and track all business expenses to minimize net self-employment income.
- 5Consider whether an S-Corp election could reduce your SE tax burden if your net income exceeds $50,000-$60,000.