Tax Bracket Calculator · Iowa

Iowa Tax Brackets 2026

Your income faces two sets of brackets: the 2026 federal brackets and Iowa's flat 3.80% rate. This page shows both, plus your real combined rate.

Data verified November 10, 2026 against official sources (see below).

Filing Status

Annual Gross Income

Federal tax

$7,670

22.0% marginal · 10.2% effective

Iowa tax

$2,850

3.8% marginal · 3.8% effective

Combined

$10,520

14.0% of gross income

Your income through the Iowa 2026 brackets
Iowa rate	Income in bracket	Tax in bracket
3.8%	$75,000	$2,850

Federal and Iowa tax at common incomes

Single filer, 2026 standard deduction, no credits. Your combined marginal rate is the federal bracket plus the Iowa bracket on the same dollar.

Federal and Iowa income tax by income, single filer, 2026
Gross income	Federal tax	Iowa tax	Combined	Effective rate
$40,000	$2,620	$1,520	$4,140	10.3%
$60,000	$5,020	$2,280	$7,300	12.2%
$75,000	$7,670	$2,850	$10,520	14.0%
$100,000	$13,170	$3,800	$16,970	17.0%
$150,000	$24,734	$5,700	$30,434	20.3%
$200,000	$36,734	$7,600	$44,334	22.2%

Iowa 2026 brackets (single filer)

Iowa charges one flat rate of 3.80% on taxable income.

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Sources and how we calculate

Published by Financial Calculator. Editorial policy. Publisher attribution, not a claim of professional review.

Iowa brackets and standard deduction come from the Iowa revenue department's published 2026 figures (rolling verification recorded in our data files). City and county income taxes are not included.

Figures last checked on November 10, 2026. Read our calculation methodology for data sources and update schedule.

How We Calculate & Keep This Accurate

We subtract the 2026 standard deduction from gross income, walk the federal brackets, then apply the Iowastate standard deduction and flat rate to the same income. The combined marginal rate adds both top rates because both taxes hit the same dollar. Credits, pre-tax deductions, and local taxes are not included; the paycheck calculator models those.

Published by Financial Calculator. Editorial policy. No named professional review is implied.

Primary Sources

Data & Freshness

Figures reflect 2026 tax-year data.

Last updated November 10, 2026 · Maintained by the Financial Calculator editorial team.

Read our calculation methodology.

Iowa tax bracket FAQs

Common questions about Iowa and federal income tax brackets in 2026.

What is the Iowa income tax rate in 2026?

Iowa has a flat 3.80% state income tax rate in 2026, on top of the federal brackets.

How much tax do I pay on $75,000 in Iowa?

A single filer earning $75,000 in Iowa pays about $7,670 in federal income tax and $2,850 in Iowa tax — $10,520 combined, an effective rate of 14.0% (standard deduction, no credits).

What is the difference between marginal and effective tax rate?

Your marginal rate is the rate on your last dollar of income; your effective rate is the average across every dollar. Only income inside a bracket is taxed at that bracket's rate, so moving into a higher bracket never makes your whole income get taxed harder.

Does Iowa have local or city income taxes?

This page shows the Iowa state income tax only. Some cities and counties charge their own income taxes; check our city tax pages or your local revenue department.