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The City of Portland, Oregon

Office of Management & Finance

Trusted partner, creating smart solutions for the City and our community.

main: 503-823-5288

Revenue: 503-823-5157

1120 SW 5th Ave, Room 901, Portland, OR 97204

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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