How Much State Tax Comes Out of an Iowa Paycheck?
Iowa is in the middle of retiring its old multi-bracket income tax and replacing it with a single flat rate. Each year of the phase-in has pushed the rate a little lower, landing somewhere in the mid-single digits and still falling. Because the number keeps moving, the safest habit is to check tax.iowa.gov for the exact current-year figure rather than relying on last year's rate.
This calculator is built around that moving target. Enter a salary and filing status, and it shows federal tax, FICA, and an Iowa state estimate side by side. USACalculator built an Iowa-specific version instead of a generic one so the state line reflects the flat-tax direction the state is heading, not an old bracket system that no longer applies.
The rates behind this tool come from IRS Publication 15-T, the U.S. Department of Labor, and the Iowa Department of Revenue, checked against 2026 figures. It's built for planning, not filing. For an exact number on a return, check with a licensed tax preparer or a payroll department.
Using the Calculator
Iowa is already selected below, so results load with an Iowa-specific estimate right away. Enter gross pay, choose a pay frequency, and pick a filing status. The result updates as numbers change, showing net pay for that period next to total deductions for the year. If a pay stub from an employer doesn't match, run the same figures through our Iowa Pay Stub Generator to see where the difference comes from.
How the Math Works
Gross pay comes in first. Federal income tax comes out next, based on filing status and the current IRS brackets. FICA takes 7.65% combined for Social Security and Medicare. Iowa then applies its current flat-phase-in rate to taxable income, and whatever remains is net pay.
The inputs are gross salary, pay frequency, and filing status. The outputs are net pay per period and total deductions for the year. Rates are pulled from current 2026 federal brackets, FICA limits, and an Iowa estimate, so the number tracks closely with real payroll software, though an actual check can shift depending on pre-tax benefits an employer runs and the exact phase-in rate in effect that year.
What Makes an Iowa Paycheck Different
State Income Tax: Falling Toward a Flat Rate
Iowa used to run a progressive system with several brackets. Lawmakers have been collapsing that into one flat rate, and the number has stepped down each year of the transition. As of recent years it sits in the mid-single digits, with further declines already scheduled, so this calculator's default should be treated as an estimate rather than a locked-in figure.
Local Income Tax: Mostly None
Cities and counties in Iowa don't add their own general income tax on wages. The one wrinkle is that some school districts levy a small income surtax, which is settled through the state income tax return rather than pulled out of every paycheck by an employer.
What Federal Tax and FICA Still Take
Federal income tax and FICA apply the same way in Iowa as anywhere else in the country. Social Security takes 6.2% up to the annual wage base, and Medicare takes 1.45% with no ceiling. Earnings past $200,000 trigger an extra 0.9% Medicare surtax. Those Social Security dollars eventually become a retirement benefit, so it's worth checking the Iowa Retirement Calculator to see how today's withholding connects to future income, especially since Iowa stops taxing most retirement income at 55.
Minimum Wage and Overtime
Iowa's minimum wage sits at the federal floor of $7.25 an hour, and the state has not set its own higher rate. Confirm current status with Iowa Workforce Development. Overtime follows the federal Fair Labor Standards Act, so eligible employees earn 1.5 times their regular rate for hours worked past 40 in a week.
How Often Iowa Employers Must Pay Workers
Iowa law generally requires regular, predictable paydays, with most employers landing on biweekly or semi-monthly schedules. If a paycheck ever seems inconsistent with a normal schedule, Iowa Workforce Development is the place to confirm the rules that apply to a specific employer.
A Real Example: $60,000 a Year in Iowa
Take a single filer earning $60,000, paid biweekly. Subtract the 2026 standard deduction of $15,000 and taxable income drops to $45,000 for federal purposes. Running that through the federal brackets puts the annual federal tax bill at roughly $5,160. Applying an estimated Iowa flat rate in the mid-single digits to a similar taxable income base lands at roughly $2,565 for the year, though the exact number depends on the phase-in step in effect.
| Item | Annual Amount |
| Gross Pay | $60,000.00 |
| Federal Income Tax | ~$5,160.00 |
| Social Security (6.2%) | $3,720.00 |
| Medicare (1.45%) | $870.00 |
| Iowa State Tax (est. ~5.7%) | ~$2,565.00 |
| Net Annual Pay | ~$47,685.00 |
Spread across 26 paychecks, that's roughly $1,834 landing in the bank each time, against a gross of $2,307.69. The effective tax rate lands near 21%, and it should keep drifting slightly lower in future years as Iowa's phase-in continues toward its final flat rate.
Who Actually Uses This Calculator
People weighing an Iowa job offer against one in a higher-tax state use it to see a realistic dollar gap instead of guessing from an offer letter. Contractors and freelancers use it to set aside the right amount for quarterly federal and state payments. New residents lean on it to build a budget around actual take-home pay rather than assuming an old state's withholding still applies. Once net pay is known, it's a natural next step to see how much car fits the budget with the Iowa Car Loan Calculator, or how a monthly mortgage payment lines up using the Iowa Mortgage Calculator.
Mistakes People Make With Their Iowa Paycheck
- Assuming last year's flat-tax rate still applies. The phase-in has moved the number lower nearly every year.
- Comparing job offers by gross salary instead of net pay, which hides how much of the state tax gap has already closed.
- Forgetting that pre-tax benefits, like a 401(k), lower taxable income before both federal and Iowa tax get calculated.
- Assuming overtime hours get taxed at a special higher rate. They don't. They simply add to gross pay for that period.
- Mixing up semi-monthly pay, which is 24 checks a year, with biweekly pay, which is 26. The difference throws off a budget fast.
- Carrying high-interest credit card debt on the assumption a bigger paycheck will absorb it. Run the real payoff timeline first with the Iowa Credit Card Payoff Calculator.
Frequently Asked Questions
Does Iowa have a state income tax?
Yes, but the state has been phasing out its old bracket system for a single flat rate that keeps stepping lower. Check tax.iowa.gov for the current figure.
How much are paycheck deductions in Iowa?
Most workers lose roughly 18% to 27% of gross pay to federal tax, FICA, and state tax combined, depending on income and the current phase-in rate.
What is the Iowa minimum wage in 2026?
It follows the $7.25 federal floor. Iowa hasn't set its own higher rate, so confirm current status with Iowa Workforce Development.
Does Iowa have different overtime rules?
No. Iowa follows the federal Fair Labor Standards Act, so eligible workers earn 1.5 times their regular rate past 40 hours in a week.
Why is Iowa's income tax rate changing?
Lawmakers have been replacing the old progressive brackets with a single flat rate, stepping the number down each year of the transition.
Do all Iowa workers pay the same tax rate?
Once the phase-in completes, yes. During the transition years, the exact flat rate depends on which phase-in step is currently in effect.
Do Iowa residents still pay federal income tax?
Yes. Federal income tax and FICA apply to every worker in the country regardless of which state they call home.
Can a city in Iowa charge its own income tax?
Cities don't levy a separate wage tax, though some school districts add a small income surtax handled through the state return.
How accurate is this Iowa paycheck calculator?
It runs on current federal tax brackets, FICA rates, and an estimated Iowa rate, so it gets close to the real number. Actual pay can vary with the exact phase-in rate and an employer's payroll setup.
Should I still contribute to a 401(k) in Iowa?
Yes. A 401(k) generally lowers both federal and Iowa taxable income, so pre-tax contributions can reduce two tax bills at once.
Related Iowa and Paycheck Tools
This page is part of a growing set of state-specific tools on USACalculator. Pair it with the Iowa Pay Stub Generator for a matching stub, the Iowa Sales Tax Calculator to see the other side of the state's tax mix, and the Iowa Student Loan Calculator or Debt Payoff Calculator once you know how much room your net pay leaves for repayment. More Iowa-specific pages are on the way and will link directly from here as they go live.
Sources: IRS Publication 15-T, U.S. Department of Labor, Iowa Department of Revenue, Iowa Workforce Development. Figures reviewed against 2026 federal tax tables and Iowa's ongoing flat-tax phase-in. This calculator gives an estimate for planning purposes only and is not tax advice — for an exact number, check with a licensed tax preparer or payroll department.