Iowa Paycheck Calculator 2026

The Iowa Paycheck Calculator helps employees estimate their take-home pay after federal income tax, Iowa state income tax, Social Security, Medicare and other paycheck deductions.

For 2026, Iowa uses a flat individual income tax rate of 3.8%. The Iowa Department of Revenue also publishes specific withholding formulas and tables for employers.

How the Iowa Paycheck Calculator Works

Start by entering your annual salary or hourly wage. Then select your pay frequency and federal filing status.

The calculator estimates federal income tax, Iowa income tax, Social Security and Medicare. You can also add pre-tax deductions, post-tax deductions and additional federal withholding.

The result shows estimated gross pay, individual taxes, deductions and estimated net pay for each paycheck.

Iowa Income Tax Rate 2026

Iowa’s individual income tax rate is 3.8% for tax year 2026. The Iowa Department of Revenue states that all levels of taxable individual income are subject to this flat 3.8% rate.

Iowa previously had a graduated individual income-tax system, but legislation changed the state to a flat-rate system. The 3.8% rate applies for 2026.

Does Iowa Have County Income Tax?

Unlike Indiana, Iowa does not use a general county individual income tax as part of its regular employee paycheck calculation.

That means this calculator does not ask you to select an Iowa county. The main state income-tax rate used here is the Iowa 2026 rate of 3.8%.

Federal Taxes on an Iowa Paycheck

Iowa employees are generally subject to federal income tax withholding in addition to Iowa income tax.

Federal withholding depends on factors including income, filing status, Form W-4 information, deductions and eligible credits.

Social Security Tax in Iowa

Social Security is a federal payroll tax rather than an Iowa state tax. The standard employee Social Security rate is 6.2% up to the applicable annual Social Security wage base.

Medicare Tax in Iowa

Employees generally pay a 1.45% Medicare payroll tax. An additional 0.9% Medicare tax may apply to wages above the applicable federal threshold.

Iowa Paycheck Examples

Weekly vs. Biweekly Pay in Iowa

Weekly employees generally receive 52 paychecks per year. Biweekly employees generally receive 26. Semi-monthly employees receive 24 and monthly employees receive 12.

The annual salary remains the same, but the amount of each individual paycheck changes depending on the payment frequency.

Hourly Pay and Overtime

Hourly employees can enter their hourly wage and regular weekly hours. The calculator also provides an overtime field for an estimate of additional earnings.

Actual overtime compensation can depend on federal overtime requirements, employment classification, employer policies and individual circumstances.

Iowa Withholding and the IA W-4

Iowa employers use Iowa withholding procedures when withholding state income tax from employee compensation. The Iowa Department of Revenue updated its withholding formula and IA W-4 information for 2026.

Because withholding is based on employee information, the amount appearing on an actual paycheck may differ from a simple annual-rate calculation.

Pre-Tax and Post-Tax Deductions

Your paycheck can include deductions for employer benefits, retirement plans, health insurance and other items.

Some deductions may be taken before certain taxes are calculated, while others are taken after taxes. The exact tax treatment depends on the specific benefit or deduction.

Why Your Actual Iowa Paycheck May Be Different

An online paycheck calculator is an estimate and does not reproduce every calculation used by an employer’s payroll system.

Your actual paycheck can differ because of your federal W-4, Iowa IA W-4, deductions, benefits, tax credits, additional withholding, bonuses and payroll adjustments.

Is Iowa a Flat-Tax State?

Yes. Iowa uses a flat individual income-tax rate. For 2026, the rate is 3.8%.

Frequently Asked Questions