Prepare - The online system gives you 30 minutes to complete your report. If you go beyond this you may get "timed out.Check out answers to your questions about Portland's unique tax forms. You can then easily file your Portland taxes with TaxAct. Revenue online is a secure web service, provding access to your tax account. See your account status. File or Pay Online Need more information? See the FAQ, email us, or call us (503) 823-5157. File your personal tax returns. Phase 1: Apply and Testing.