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.