State Income Tax
Iowa imposes a state income tax using a flat rate of 3.8% on all taxable income regardless of income level. The filing deadline is 2026-04-30. Social Security benefits are exempt from Iowa state income tax. Retirement income is generally exempt from state tax. Retirement income, pensions, and Social Security are tax-exempt for residents 55 and older.
Retirement Income Details
Retirement income, pensions, and Social Security are tax-exempt for residents 55 and older.
Does Iowa have a state income tax?
Yes. Iowa has a state income tax with a flat rate of 3.8%.
What is the Iowa income tax rate?
Iowa uses a flat tax rate of 3.8% on all taxable income. This means all taxpayers pay the same rate regardless of how much they earn.
Is Social Security taxed in Iowa?
No. Iowa does not tax Social Security benefits, which can be significant for retirees living on fixed incomes.
Is retirement income taxed in Iowa?
Iowa generally exempts retirement income from state tax. Retirement income, pensions, and Social Security are tax-exempt for residents 55 and older.
When is the Iowa income tax filing deadline?
The Iowa state income tax filing deadline is 2026-04-30. You can file and pay through the official Iowa Department of Revenue portal.
What is the standard deduction in Iowa?
Iowa's standard deduction is not available for single filers.
How does Iowa income tax compare to neighboring states?
Iowa's top rate of 3.8% is relatively low compared to most states. Use the comparison table above to see how neighboring states compare.
Official Payment Portal
Iowa Department of Revenue
Last verified: 2026-03-31 · Always consult a tax professional before making financial decisions.