Helpful Hints
Write your social security number or federal identification number on your check and the type of tax that you are paying. Never send a check or money order without some form of documentation. This could cause a delay in applying your payment to the proper tax.

Always include your social security and telephone number on any correspondence, so we may research your issue properly and contact you if we have questions.

When mailing returns, always keep a copy for your records.

Please notify us in writing when you or your business has a change (i.e. address, your business incorporates, you sold your business, you discontinued your business, etc.).

Show All Answers

1. How does Portland spend funds generated through the Income Tax?
2. What is the tax rate for the City of Portland Income Tax?
3. Why do I have to make quarterly estimated income tax payments?
4. How do I file for an extension of time?
5. What are the penalty and interest charges if I pay my income tax late?
6. Can I e-file my Portland income tax return?
7. Who needs to file a City of Portland Individual Income Tax Return (P-1040)
8. I lived in the City of Portland for part of the year. How do I file?
9. I lived in the City of Portland for part of the year, and I worked in the City all of the year. How do I file?
10. What is taxable income?
11. What is nontaxable income?
12. What deductions are allowable when filing the City of Portland Individual Income Tax Return (P-1040)
13. Who must file a City of Portland Corporate Income Tax Return (P-1040)
14. Who must file a City of Portland Partnership Income Tax Return (P-1065)?
15. Can a partnership pay the City Income Tax for the partners?
16. Who must withhold Portland City Income Tax?
17. How do I file and pay my withholding?
18. When are my withholding payments due?
19. I do not have withholding for this quarter. What do I do?
20. Who has to file a City of Portland Fiduciary Income Tax return (P-1041)?
21. Helpful Hints