Iowa Individual Income Tax Forms (Tax Year 2025)
Iowa individual income taxes are administered by the Iowa Department of Revenue.
This page provides official resources for Iowa individual income tax forms for tax year 2025, filed in 2026.
File Iowa Income Tax Online (2025)
Iowa provides online services for filing and payments through GovConnectIowa.
Taxpayers can use GovConnectIowa to manage accounts and make payments.
Quick Links (Official Iowa Department of Revenue)
The official Iowa Department of Revenue website is available at Iowa Department of Revenue.
Individual filing guidance is available on the Iowa Individual Taxes page.
Official Iowa tax forms are available in the Iowa individual income tax forms library.
Iowa Individual Income Tax Forms (2025)
Iowa residents file their state income tax return using 2025 IA 1040, Iowa Individual Income Tax Return.
Nonresidents and part-year residents generally complete IA 1040 and then claim the nonresident or part-year resident credit using 2025 IA 126, Iowa Nonresident or Part-Year Resident Credit Schedule.
Estimated tax payments are made using the vouchers and guidance in 2025 IA 1040ES, Iowa Individual Estimated Income Tax Instructions.
Payments sent with a paper return or extension payment by mail may use the voucher options described in the IA 1040 instructions for IA 1040V payment voucher references.
Estimated Payments and Amendments (2025)
Estimated income tax guidance is available on the Iowa estimated income tax payments page.
To amend an Iowa individual income tax return, follow the Iowa Department of Revenue guidance on amending Iowa tax returns.
Iowa Individual Income Tax Deadlines (Tax Year 2025)
Iowa individual income tax returns for tax year 2025 are due April 30, 2026.
Iowa provides an automatic extension to October 31 when at least 90 percent of the tax due is paid by the original due date.
The Iowa Department of Revenue explains this rule on Return Due Date and Extensions.
Estimated tax installment due dates for tax year 2025 are listed in the 2025 IA 1040ES instructions.
Installments are generally due April 30, 2025, June 30, 2025, September 30, 2025, and January 31, 2026.
Iowa Taxpayer Resources (2025)
Taxpayers can manage accounts and make payments through GovConnectIowa.
Payment methods are summarized on the Iowa Department of Revenue page for making an Iowa tax payment.
Contact information for the Iowa Department of Revenue is available on the official contact page.
Disclaimer
This page links to official Iowa Department of Revenue resources for informational purposes only.
Tax laws, forms, and filing requirements may change.
Always verify information on the official Iowa Department of Revenue website.
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