Oregon Department of Revenue – Via Email
Answers to the frequently asked questions on the Corporate Activity Tax page on the Department of Revenue website have been updated to reflect changes made in Senate Bill 164 in the 2021 legislative session.
The updates include explanation of due dates for estimated payments and returns for fiscal-year filers, and new information about penalties and interest related to the CAT.
Work to implement Senate Bill 164 continues. A public hearing on a series of proposed administrative rules related to the SB 164 changes to the CAT has been scheduled for November 18. More information on the proposed rules and the hearing will be provided closer to the hearing date.
The Corporate Activity Tax went into effect January 1, 2020.The CAT is imposed on businesses for the privilege of doing business in Oregon. It applies to all business entities including those located inside and outside of Oregon. It is measured on a business’s commercial activity—the total amount a business realizes from transactions and activity in Oregon. Businesses with taxable commercial activity in excess of $1 million must pay the Corporate Activity Tax. The tax is $250 plus 0.57 percent of gross receipts greater than $1 million after subtractions.
Taxpayers with general questions about the CAT can email cat.help.dor@oregon.gov or call 503-945-8005.