How to use the Iowa Paycheck Calculator
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Iowa income tax brackets 2026
Iowa has a flat 3.8% income tax. Iowa moved to a flat 3.8% income tax in 2025.
| Taxable income | Rate |
|---|---|
| Over $0 | 3.8% |
Standard deduction: $16,100 single, $32,200 married. Personal exemption credit: $40 single, $80 married.
Sources: Tax Foundation, State Individual Income Tax Rates and Brackets, 2026; IRS Rev. Proc. 2025-32; Iowa revenue and labor department rates for 2026. Federal: 2026 brackets, $184,500 Social Security wage base. See paycheck calculators for every state.
Formula
Frequently asked questions
How much is Iowa state income tax in 2026?
Iowa has a flat 3.8% income tax for 2026. Iowa moved to a flat 3.8% income tax in 2025.
What taxes come out of a Iowa paycheck?
Federal income tax, Social Security (6.2% of wages up to $184,500 in 2026) and Medicare (1.45%, plus 0.9% on wages over $200,000), Iowa income tax. Pre-tax 401(k) and health insurance deductions lower your taxable pay.
Is this Iowa paycheck calculator up to date?
Yes. It uses the 2026 federal tax brackets and standard deduction, the 2026 Social Security wage base, and the latest published Iowa tax rules. We last reviewed the Iowa numbers on 20 Oct 2026.
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Results are estimates for information only and are not financial, tax or legal advice. Tax rules, interest rates and fees change, so confirm important numbers with your bank, employer or a qualified adviser. Read our disclaimer.