USCalcs

Iowa Income Tax Calculator 2026

Estimate your Iowa federal and state income tax for 2025.

Your inputs

$

Your liability

Total tax
$14,254
After tax: $70,746
Federal tax
$10,541
Taxable: $70,400
State tax
$3,713
Taxable: $70,400
Effective rate
16.77%
Federal marginal
22.0%
Federal bracket breakdown
10.00%on $11,600$1,160
12.00%on $35,550$4,266
22.00%on $23,250$5,115

About Iowa income tax

Tax structure

Iowa uses a progressive income tax with multiple brackets. Your effective rate depends on income and filing status. Iowa is moving toward a 3.8% flat tax by 2026.

Snapshot at $75,000 (single)

  • Take-home: $57,778 per year
  • Federal tax: $8,341
  • State tax: $3,143
  • Effective rate: 22.96%
  • vs. Texas (no income tax): Iowa keeps $3,143 more.

Compare to neighboring states

Minnesota →Wisconsin →Illinois →Missouri →All states

Iowa tax FAQ

How much state income tax will I pay in Iowa?

Iowa state income tax depends on your taxable income and filing status. Use the calculator above for an exact estimate. Iowa is moving toward a 3.8% flat tax by 2026.

What's the difference between federal and Iowa state tax?

Federal income tax is collected by the IRS using nationwide brackets (10%–37%). Iowa state income tax (where applicable) is separate and uses its own brackets and deductions. Both apply to most Iowa residents.

Are these the 2025 or 2026 tax brackets?

The calculator uses tax year 2025 federal brackets — the figures you'll use to file in early 2026. The IRS adjusts brackets annually for inflation; we update when 2026 figures are released.

Should I take the standard deduction or itemize?

Take whichever is larger. The 2025 standard deduction is $14,600 (single), $29,200 (married filing jointly), or $21,900 (head of household). Itemize if your mortgage interest, state and local taxes (capped at $10,000), and charitable donations exceed that amount.