ADOR offices will be temporarily closed Monday, June 1 and Tuesday, June 2. ADOR online services remain available at https://azdor.gov/taxpayer-education/resources. We apologize for any inconvenience.
Your Responsibilities as a Tax Preparer
Penalty Abatement Request: Use Form 290 to request an abatement of non-audit penalties.
Approved Tax Software Vendors
E-File and E-Pay Requirements and Penalties
Forms Technical Information
The most compatible browsers for forms are Internet Explorer or Mozilla Firefox. If you are using Google Chrome or Safari and see a blank/warning/error message, please view the form within your computer's Download folder instead of online.