Income tax calculator

Iowa income tax calculator

Iowa has a flat 3.8% for 2026. On $100,000 of pay a single filer keeps $76,032, after $13,170 of federal income tax, $7,650 of Social Security and Medicare, and $3,148 to Iowa.

Your year

Iowa’s 2026 schedule, deductions and exemptions, with the federal brackets, payroll tax and the child tax credit.

I’m paid a year, file , live in Iowa and put into a 401(k).

$76,032

kept for 2026, about $6,336 a month. Tax takes 24% of your pay.

Federal income tax$13,170
Social Security$6,200
Medicare$1,450
Iowa income tax$3,148
All of it$23,968

Of your next $1,000 of pay, $335 goes to tax: the 22% federal bracket, payroll tax and the state’s 3.8%. See what would lower it.

Take-home pay in Iowa

What a year’s pay keeps after every tax, with no 401(k), kids or other income.

PayState taxKept, singleKept, jointly
$50,000$1,248$41,107$43,799
$75,000$2,198$59,394$63,076
$100,000$3,148$76,032$82,214
$150,000$5,048$108,743$118,789
$250,000$8,848$174,334$189,272

Iowa tax brackets for 2026

One rate on all taxable income, after Iowa’s own deductions and exemptions.

Every filing status3.8%

Questions people ask

What is the Iowa income tax rate for 2026?

Iowa has a flat 3.8%. On $100,000 of pay a single filer's state tax is $3,148, 3.1% of pay.

How much is take-home pay on $100,000 in Iowa?

$76,032 for a single filer in 2026, about $6,336 a month: $13,170 of federal income tax, $7,650 of Social Security and Medicare, and $3,148 to Iowa.

How does Iowa compare with a state with no income tax?

On $100,000 single, $3,148 a year less is kept than in Texas or Florida, where the same pay keeps $79,180.

Does a 401(k) lower Iowa income tax?

Pay put into a traditional 401(k) comes off federal income tax and Iowa's. It doesn't lower Social Security or Medicare.

Checked on October 29, 2026 against Rev. Proc. 2025-32, SSA 2026 fact sheet and Iowa's published 2026 schedule. An estimate for your records, not tax advice.

The federal side: the 2026 brackets. From your own pay stub, with what is left to pay: the tax forecast.

Put more back in your pocket.

Reimburse works out your whole year from a pay stub and last year's return, and every move that would lower it.