Iowa Income Tax Calculator
Iowa applies a flat 3.8% state income tax rate.
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1/5 addedIowa state tax brackets
| Taxable income | Rate |
|---|---|
| $0 – ∞ | 3.8% |
Take-home pay in Iowa at different incomes
2026 estimates for a single filer with wage income: federal income tax, Iowa income tax, and Social Security and Medicare (FICA). Self-employment tax, local taxes and state payroll taxes are not included.
| Gross salary | Federal tax | Iowa tax | FICA | Total rate | Take-home / year | Take-home / month |
|---|---|---|---|---|---|---|
| $25,000 | $890 | $338 | $1,913 | 12.6% | $21,859 | $1,822 |
| $50,000 | $3,820 | $1,288 | $3,825 | 17.9% | $41,067 | $3,422 |
| $100,000 | $13,170 | $3,188 | $7,650 | 24.0% | $75,992 | $6,333 |
| $200,000 | $36,734 | $6,988 | $14,339 | 29.0% | $141,939 | $11,828 |
How Iowa taxes your income
Iowa taxes income at a single rate of 3.8%. Because there is one rate, your state effective rate stays close to 3.8% as income rises once deductions are used up.
We subtract an estimated $16,100 (the state standard deduction plus any dollar-amount personal exemption) from your income before applying the Iowa brackets.
Not modelled: personal tax credits, most income-based phase-outs, deductibility of federal tax where a state allows it, local income taxes (for example city or county taxes), and state payroll taxes such as disability or family-leave contributions.
Not modelled: personal exemption credit ($40).
Compare every state in state income tax rates.
Iowa income tax FAQ
What is the Iowa state income tax rate for 2026?+
Iowa has a flat state income tax rate of 3.8% for 2026.
How much tax would I pay on $50,000 in Iowa?+
For a single filer earning $50,000 in wages, our estimate is $3,820 federal income tax, $1,288 Iowa income tax and $3,825 Social Security and Medicare tax, a combined 17.9%, leaving about $41,067 a year ($3,422 a month).
Does Iowa have a state income tax?+
Yes. Iowa taxes wage income at a flat rate, in addition to federal income tax and Social Security and Medicare tax.
Does this calculator include Social Security and Medicare tax?+
The take-home table does: 6.2% Social Security on wages up to $184,500 plus 1.45% Medicare, and an extra 0.9% Medicare above $200,000. The interactive calculator above shows income tax only. Self-employment tax is not included.
Does Iowa have local income taxes?+
Our estimate covers state income tax only. Some places charge extra local income tax (city, county or school district). Check Iowa's revenue department for the local taxes that apply where you live or work.
How accurate is this Iowa estimate?+
It is a planning estimate for a single filer. State brackets come from the Tax Foundation's 2026 table (published February 2026), updated for later rate changes we could confirm, and we do not model credits or most phase-outs. Confirm with the Iowa revenue department before filing.