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Office of Management & Finance


Phone: 503-823-5157

Arts Tax: 503-865-4278

111 SW Columbia St, Suite 600, Portland, OR 97201

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Tax Calendar

Due date of Combined Tax Return (or six-month extension request) for filers with a October fiscal year end

111 SW Columbia St., Suite 600, Portland, OR 97201

Thursday, February 15 2018, 8:00 AM to 5:00 PM


Portland and Multnomah County business taxes due date for tax return or 6-mo extension request for Oct. FYE


Event Types > Business Events


Note: If a due date falls on a weekend or holiday, the next business day becomes the due date.




Mailing Address: City of Portland Revenue Bureau, PO Box 8038, Portland, OR 97207-8038


Fax: 503-823-5192