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Iowa Tax Calculator

The Iowa (IA) Tax Calculator is updated for the 2026/27 tax year. It estimates Iowa state income tax alongside federal income tax, FICA, and Medicare. Iowa applies a progressive income tax system, recently simplified through scheduled bracket consolidations and deduction reforms. This calculator helps residents and part-year filers estimate total tax and net income accurately.

The tool also supports major Iowa deductions and credits such as the Earned Income Credit, Child and Dependent Care Credit, and Retirement Income Exclusion.

Quick Access Tools

Quick Iowa Tax Calculator

Enter income and filing status, then click Calculate. Use the advanced tabs to include dependents, itemized deductions, retirement contributions, or withholdings for both federal and state levels.

Input key: F Used in Federal tax calculations S Used in State tax calculations

Quick Tax Calculation Detailed Tax Calculation
Filing Information Quick Inputs Income Details Deductions & Adjustments State Options IRA, Pensions & Annuities Withholdings

Filing Information

Set your filing status, dependants and personal details so the calculator can apply the correct Federal and State rules.

Quick Inputs

Provide a summary of your income and deductions to calculate your Federal and State tax position quickly.

Income Details

Enter the specific types of income that contribute to your Federal Adjusted Gross Income.

For Schedule B

Deductions & Adjustments

Deductions & Adjustments

Include any adjustments to income that reduce your Federal/State Adjusted Gross Income.

State Options

Some states apply local income taxes in addition to State tax. Enter your local rate if it applies.

IRA, Pensions & Annuities

Enter the details for your retirement contributions and income sources, which are used to compute values on **Form 8606**. This includes contributions to traditional IRAs, 529 savings plans, and rollovers, as well as income from rental properties, farms, unemployment, and other sources. Additionally, provide information on any disaster-related distributions or IRA rollovers you’ve made, and enter your capital gain distributions if applicable. These inputs are essential for accurately calculating your total retirement-related income and determining your tax liabilities or benefits, specifically regarding IRA deductions and distributions as outlined in **Form 8606**.

Withholdings

Enter withheld amounts to calculate refund or balance due.

How to Calculate Income Tax in Iowa for 2026/27

  1. Enter your annual gross income and select your filing status.
  2. Include optional deductions and dependents if applicable.
  3. Click Calculate to view your estimated Iowa and federal tax liability with take-home pay.

Advanced Options

  • Model retirement deductions and pre-tax benefits.
  • Enter dependents for state and federal credits.
  • Toggle itemized deductions versus the standard deduction.
  • Add withholdings to estimate refunds or balances due.

Related Calculators

Additional Resources

Frequently Asked Questions

Common Iowa tax questions include how to claim retirement exclusions, handle out-of-state income, and determine when estimated payments are required.

Can I add extra Iowa/Local withholding?

Yes—enter an additional amount per paycheck to target a $0 estimate at year-end.

Adoption credit in Iowa?

Iowa provides an adoption tax credit with eligibility rules—see the Credits area.

Partial-year residents—how to apportion?

Use the part-year option and enter Iowa-source wages/months to model split-year results.

Bond yield after tax

See Bond Yield and Yield to Maturity.

Do tips count toward Iowa income?

Yes—reportable tips are wage income and subject to Iowa tax.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.