Iowa Income Tax Calculator
Calculate your 2026 Iowa state income tax. See your bracket breakdown, effective rate, and how Iowa compares to neighboring states.
Your Tax Inputs
Effective Rate vs Neighboring States
Iowa Tax Brackets (2026)
Federal vs Iowa Tax Comparison
Estimate for your income and filing status. Federal uses 2026 brackets and standard deduction.
| Item | Federal | Iowa | Total |
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About Iowa state taxes (Tax year 2026)
Iowa transitioned to a flat income tax of 3.8% in 2026, down from a progressive system. This is the result of major tax reform legislation passed in 2022 that phases in rate reductions over several years.
Groceries are exempt from sales tax. Prescription drugs are exempt.
Iowa's new 3.8% flat rate is below the national average, a significant improvement from its previous top rate of 8.53% that existed just a few years ago.
Filing in Iowa: returns for tax year 2026 are administered by the Iowa Department of Revenue and are generally filed in 2027 by the federal April deadline unless Iowa declares a state-specific extension. Tax type on this return: Flat. Top marginal rate: 3.8%. State sales-tax rate: 6.0%. For the most current contact info, see the Federation of Tax Administrators directory.
Iowa — What is Iowa's income tax rate? Iowa has a flat income tax rate of 3.8% as of 2026. This is the result of a multi-year phase-down from a progressive system that had rates up to 8.53%.
Iowa — Does Iowa tax groceries? No, groceries (unprepared food) are exempt from Iowa's 6% state sales tax.
Iowa — How has Iowa's tax system changed? Iowa passed major tax reform in 2022 that transitioned from a progressive system (4 brackets, top rate 6%) to a flat 3.8% rate by 2026. The reform also reduced corporate rates.
How this page is reviewed
| Risk tier | High YMYL |
|---|---|
| Author | Calculover Editorial Team Tax education |
| Editorial owner | Calculover Tax & Payroll Desk State-tax methodology owner |
| Reviewer | Calculover Editorial Review Government-source and limitation review |
| Last reviewed | 2026-05-14 |
| Last verified | 2026-05-14 |
| Data effective date | 2026-01-01 |
| Jurisdiction | Iowa |
Methodology
State-tax per-state pages apply the published 2026 bracket schedule, standard deduction, and filing-status rules for the listed jurisdiction. Federal AGI inputs are mapped to state taxable income before bracket math runs. Local taxes (NYC, Philadelphia, certain Ohio cities) are flagged but not embedded in the base estimate.
Assumptions
- The user enters federal AGI, filing status, and state-specific adjustments as provided.
- Brackets, standard deductions, and credits reflect the 2026 statutory values published by the state Department of Revenue and the Tax Foundation.
- Local income taxes and reciprocity-agreement situations are noted but not auto-applied.
Limitations
- These pages do not predict mid-year legislative changes, rate adjustments, or new local tax assessments.
- Multi-state filers, convenience-of-employer rules, and special-circumstance credits require additional tax-professional analysis.
Sources
- State Tax Rates, Federation of Tax Administrators
- State Individual Income Tax Rates and Brackets, Tax Foundation
- State Government Resources, Internal Revenue Service
Professional guidance: This page is for state-tax education only and is not tax, legal, financial, or investment advice. State tax decisions and multi-state filing should be reviewed with a CPA or enrolled agent licensed in the relevant states.