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Office of Management & Finance

Revenue Bureau

Phone: 503-823-5157

Arts Tax: 503-865-4278

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

More Contact Info

Extension Requirements

Requesting an extension of time to file

If you cannot complete your tax forms by the due date, you may request a six month extension of time to file (to Oct 15 for calendar years). Tax return and extension due dates.

Federal or state tax extensions are not honored. You must request an extension directly with the Revenue Bureau to avoid a penalty (even if you have overpaid).

To request an extension for time to file you must:

  • Complete the Extension Request Form (or online extension request)
  • Include estimated tax payment with the extension request, if needed
  • File the extension request by the due date (April 15 for calendar years) in order to avoid delinquent account status and late filing penalties

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.

PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.