Iowa Income Tax Guide for 2024

Overview

Iowa uses a progressive income tax system with rates ranging from 4.4% to 5.7%. Capital gains are taxed as ordinary income. The state offers a standard deduction of $14,600 for single filers.

Income Tax Rates

Single Filers

Income RangeTax Rate
Up to $6,2094.4%
$6,210 - $31,0494.82%
$31,050+5.7%

Married Filing Jointly

Income RangeTax Rate
Up to $12,4194.4%
$12,420 - $62,0994.82%
$62,100+5.7%

Capital Gains Tax

Capital gains are taxed at the same rates as ordinary income.

Deductions & Exemptions

TypeAmount
Standard Deduction (Single)$14,600
Standard Deduction (Married Filing Jointly)$29,200

Additional Information

  • 2024 was the last graduated-rate year, topping out at 5.7%; a 3.8% flat rate applies from tax year 2025
  • Iowa starts from federal taxable income, so the federal standard deduction ($14,600 single / $29,200 married filing jointly for 2024) carries through
  • Iowa grants a $40 personal credit per taxpayer and $40 per dependent; these are credits against tax, not deductions from income
  • Military retirement pay fully exempt

Charts

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Sources

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Last updated: September 15, 2026

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