Tool · Fintech
Iowa income tax calculator
Iowa state, local and federal income tax for 2025 or 2026.
Other income
Family
Deductions and adjustments
Federal deduction up to $25,000, 2025-2028.
The extra half-time pay; federal deduction up to $12,500 ($25,000 joint).
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How it’s calculated
2025: Flat 3.8%. 2026: Flat 3.8%.
School district surtax (a percent of state tax) in most districts.
The calculator applies Iowa's own starting income, deductions, exemptions and main credits for the year chosen. The sources for every figure are linked under the Iowa result.