State Reference · Tax Year 2026
Iowa (IA)
Flat 3.8% (2026)
Iowa Department of Revenue · Main form: IA 1040 · Due April 30, 2027
Rates & brackets
Top rate3.8%
Standard deductionFederal-conformed
Filing logistics
Main formIA 1040
Filing dueApril 30, 2027
E-file portalGovConnectIowa
AgencyIowa Department of Revenue
Major credits
- IA EITC (15% federal)
- Tuition and Textbook credit
- Child & dependent care credit
Sales & property tax
Sales tax6% state + up to 1% local option
Property taxHomestead credit + military service credit
Preparer notes
- Filing due April 30, not April 15.
- Retirement income fully exempt (age 55+ or disabled).
Related deduction & credit lessons
Deepen state-specific credit hunting with these lessons.