Login
Iowa Taxes: What You Need to Know
Understanding Iowa’s tax system is important for managing your finances. The Hawkeye State imposes federal and state taxes that affect your paycheck and overall income.
Federal, State, and Local Tax Withholding
Iowa residents pay both federal and state income taxes. There is no local income tax in Iowa. Your employer withholds both federal and state taxes from each paycheck. The amount withheld depends on your income level and filing status.
FICA and State Insurance Taxes
Social Security and Medicare taxes, collectively known as FICA, are deducted from your paycheck.
Updated for 2026:
- Social Security tax rate: 6.2% on wages up to $184,500 (up from $168,600 in 2024)
- Medicare tax rate: 1.45% on all wages
An additional 0.9% Medicare tax applies to wages above $200,000 ($250,000 for married filing jointly).
Iowa also requires employer contributions to state unemployment insurance.
Sources:
Pre-Tax Deductions
Many Iowans can reduce their taxable income through pre-tax deductions. Common examples include:
- Medical insurance premiums
- 401(k) retirement contributions
- Health Savings Account (HSA) contributions
- Flexible Spending Account (FSA) contributions
These deductions are taken out before taxes are calculated, lowering your overall tax burden.
Iowa Tax Summary Table: Updated for 2026:
| Tax Type | Rate | Notes |
|---|---|---|
| State Income Tax | 3.8% | Flat rate for all income levels, effective January 1, 2026 |
| Social Security Tax | 6.2% | On wages up to $184,500 |
| Medicare Tax | 1.45% | On all wages |
| State Sales Tax | 6% | Consistent across the state |
| Fuel Tax | Varies | Based on fuel type and usage |
Sources:
Iowa Income Tax 2026: Flat Rate
Iowa has completed its multi-year tax reform. Beginning January 1, 2026, all taxable individual income is subject to a flat rate of 3.8%, regardless of income level or filing status.
This rate was established under Iowa Senate File 2442, signed into law in May 2024. It replaces the previous graduated bracket system. The IA W-4 withholding form has also been updated to reflect this change.
Note: Earlier reform legislation (House File 2317, 2022) had set the flat rate target at 3.9%. The 2024 legislation (SF 2442) accelerated and further reduced the rate to 3.8%.
Sources:
- IDR Announces 2026 Individual Income Tax and Interest Rates
- IDR Issues New Income Withholding Tax Tables for 2026
Iowa Department of Revenue Interest Rate (2026)
Starting January 1, 2026, the interest rate for taxpayers with overdue payments is:
- Annual rate: 10.0%
- Monthly rate: 0.8%
- Daily rate: 0.027397%
These rates are set under Iowa Code Section 421.7. The annual rate is based on the average monthly prime rate for the prior 12 months, rounded to the nearest whole percent, plus two percentage points. The prime rate averaged 7.57% from October 2024 through September 2025.
Source: IDR Announces 2026 Individual Income Tax and Interest Rates
Key Points on Iowa’s Corporate Income Tax (2026)
Iowa’s corporate income tax rates remain unchanged from 2024 and 2025:
- 5.5% on the first $100,000 of income
- 7.1% on income over $100,000
Iowa law provides a mechanism to reduce the top corporate rate if net corporate receipts exceed $700,000,000 in a fiscal year. The long-term target is a flat rate of 5.5%.
Source: IDR Issues Order Related to Tax Year 2026 Corporate Income Tax Rates
Median Household Income in Iowa
The figures below reflect the most recently available Census data.
| Year | Median Household Income |
|---|---|
| 2024 | $70,571 |
| 2022 | $70,571 |
| 2021 | $68,816 |
| 2019 | $66,054 |
| 2018 | $68,718 |
| 2017 | $63,467 |
| 2016 | $59,094 |
| 2015 | $60,855 |
Source: Iowa Data Center
Wrapping It Up
Iowa just completed a significant tax overhaul, moving from a graduated bracket system to a flat 3.8% rate for everyone starting in 2026. It’s a notable shift that simplifies things considerably and delivers real savings for higher earners. No local income taxes to worry about either. Combined with a straightforward 6% sales tax and standard federal and FICA withholdings, Iowa’s payroll picture is now cleaner and more predictable than it’s been in years.
