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.

Welcome to the new Website!
Learn about all the new features and functionality of the new website.
IDR Webinar Series
Register today to attend the next free tax webinar.
Iowa Withholding Calculator
Need to change your 2019 Iowa withholding amount? Calculate before you complete a new W-4.
Tax Reform Information
Recently, Iowa Governor Kim Reynolds signed an extensive tax reform bill into law.

News

IDR Issues New Income Withholding Tax Tables for 2020
November 04, 2019

Des Moines, Iowa – The Iowa Department of Revenue is issuing updated income tax withholding tables for 2020 to continue to align Iowa withholding with recent changes in state tax laws.

For individuals, this means that employers will be reducing the amount of Iowa tax withheld from employees’ paychecks, beginning January 1, 2020, increasing take-home wages for individuals.

IDR Announces 2020 Interest Rates, Standard Deductions, and Income Tax Brackets
October 17, 2019

Des Moines, Iowa – The Iowa Department of Revenue has finalized the 2020 interest rate, individual income tax brackets, and individual income tax standard deduction amounts for the 2020 tax year (applicable for taxes due in 2021). 

Interest Rates

Starting January 1, 2020, the interest rate for taxpayers with overdue payments will be:

Welcome to the New Website!
August 26, 2019

Welcome to the Department's all-new website! The new site includes better navigation, improved search functions, and a simplified homepage. The Department utilized customer feedback and data analytics in designing and building the site.

Iowa Department of Revenue Extends Iowa Business Tax Return Deadline for Flood Disaster Areas
May 10, 2019

In response to Governor Reynolds’ recent disaster declarations for five additional Iowa counties -- Clinton, Decatur, Louisa, Muscatine, Scott, and Wapello -- the Iowa Department of Revenue has granted an extension and suspension of any penalty or interest for taxpayers whose principal residence or business is located in these counties.

Iowans in Nine Counties Receive Extension on Filing Federal and State Taxes
April 02, 2019

Following the release of Internal Revenue Service news release IA-2019-02 on March 25, 2019, providing federal tax relief for Iowans in counties damaged by flooding, the Iowa Department of Revenue is providing similar relief at the state level.

Iowa Department of Revenue Extends Tax Filing Deadline for Flood Disaster Areas
March 19, 2019

In response to Governor Reynolds’ disaster declarations for many Iowa counties, the Iowa Department of Revenue has granted a 30-day extension and suspension of any penalty or interest for taxpayers whose principal residence or business is located in the disaster areas and whose payment or return is due on or before March 31. This includes all tax types.