Skip to content

CAT Forms Available Online

Forms for Oregon’s Corporate Activity Tax are now available on the Department of Revenue website. Go to the Revenue forms page and scroll down to Corporate Activity Tax or type “corporate” in the search box. Forms now available include:

  • Form OR-CAT, Oregon Corporate Activity Tax Return.
  • Form OR-CAT, Oregon Corporate Activity Tax Return Instructions.
  • Form OR-CAT-EXT, Application for Extension of Time to File an Oregon Corporate Activity Tax Return.
  • Form OR-CAT-V, Oregon Corporate Activity Tax Payment Voucher.
  • Form OR-QUP-CAT, Underpayment of Oregon Corporate Activity Estimated Tax.
  • Publication OR-CAT-BRO, Corporate Activity Tax Brochure.
  • Schedule OR-AF-CAT, Schedule of Affiliates for Form OR-CAT.
  • Schedule OR-EXC-CAT, Exclusions From Commercial Activity.
  • Schedule OR-EXC-CAT, Exclusions From Commercial Activity.
  • Worksheet OR-CAT, Instructions for calculating tax on corporate activity.

Taxpayers with general questions about the CAT can email cat.help.dor@oregon.gov or call 503-945-8005.

Share This Resource

Related Articles

The Oregon Employment Department recently published several resources to assist employers in preparing for the Paid Leave Oregon program: PLO Employer Guidebook Leave Comparison Chart...
Associated General Contractors of America to Release Series of Mental Health PSAs, Host Quarterly Mental Health Forums and Assemble Resources for Firms to Use with...
May 12, 2022 This blog was originally published in Ideas Fuel Industries on the Schwabe, Wiliamson & Wyatt PC website. On February 4, 2022, President...