Welcome to the Iowa Department of Revenue

The mission of the Iowa Department of Revenue is to serve Iowans and support state government by collecting all taxes required by law, but no more.

It's Tax Time
Are you ready for tax time? Let IDR help you prepare.
2021 Withholding Tables and Calculator
IDR announces new income withholding tax tables for 2021 and an updated withholding calculator.
Announcing 2021 Rates
Review finalized individual income tax brackets, standard deduction amounts, and interest rates.
IDR and COVID-19
Stay up to date with the Department's recent announcements and FAQs regarding COVID-19


Administrative Rules - Available for Public Comment
February 24, 2021
The Department of Revenue has submitted new proposed rules to the Iowa Legislature, Geothermal Heat Pump Tax Credit and Solar Energy System Tax Credit, available for public comment through March 16, 2021. See individual notices for details.
IDR helps you prepare for tax time
February 03, 2021
With tax filing season upon us, the Iowa Department of Revenue is reminding Iowans of the many resources available that can assist taxpayers with filing their tax return. The Department will begin processing returns at the same time as the IRS on February 12. This is because Iowa taxpayers are required to provide their federal return with their Iowa return. Iowa income tax returns are due on April 30.
IDR Releases State Tax Guidance: Iowa Small Business Relief Grant Program
January 19, 2021

On June 29, 2020 Governor Reynolds signed into law House File 2641. The Department has released guidance to explain this tax change as it relates to the following:

IDR Releases New State Tax Guidance: Iowa's Nonconformity with the Federal Consolidated Appropriations Act of 2021
January 19, 2021
On December 27, 2020, President Donald Trump signed Public Law 116-260, the Consolidated Appropriations Act, 2021. This federal law includes a number of federal tax changes, some with retroactive effect. The Department has released new guidance to explain this law as it relates to Iowa's Nonconformity with the Federal Consolidated Appropriations Act of 2021.
IDR Releases State Tax Guidance: Computers and Computer Peripherals
January 15, 2021

The Iowa Department of Revenue has released new sales tax guidance:

Administrative Rules - Adopted & Filed
January 12, 2021
The Department previously submitted the following proposed rule to the Iowa Legislature, Collection of Court Debt, which has been adopted and filed, effective January 1, 2021. See individual notice for details.