Iowa Paycheck Calculator
Iowa recently simplified to a flat 3.8% rate — down from nine graduated brackets.
Iowa charges a flat 3.8% on all taxable income, with a standard deduction available.
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Estimates only. Not tax or legal advice. Consult a tax professional for accuracy.
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Iowa Paycheck FAQ
Common questions about paychecks and taxes in Iowa
What is the Iowa state income tax rate?
Iowa has a flat income tax rate of 3.8% on all taxable income. A $1,970 standard deduction applies for single filers and $4,860 for married filing jointly.
Has Iowa changed its income tax structure?
Iowa completed a transition from nine graduated brackets to a flat 3.8% rate, significantly simplifying state income tax calculations.
How does Iowa's flat rate compare to other Midwest states?
Iowa's 3.8% is competitive in the Midwest: lower than Illinois (4.95%), Minnesota (5.35%–9.85%), and Wisconsin (4%–7.65%), but higher than Indiana (3.23%) and North Dakota (1.1%–2.9%).
Are there local income taxes in Iowa?
Some Iowa school districts levy a local income surtax, which is a percentage of your state tax liability. These local taxes are not included in this calculator.
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