Change Your Mailing Address For Your Property Tax Statement

Your mailing address is the address where mail is delivered by the post office. It is the owner’s responsibility to notify the Assessor when the mailing address of real property has changed. Per Oregon Statute ORS 308.212a, written requests from the owner of the property is required in order for Multnomah County Division of Assessment, Recording and Taxation (DART) to change our records.

IMPORTANT: A change of mailing address request can only be accepted when signed by an owner, their attorney, an officer of the corporation, or an authorized property agent. The form must be signed in the name of the individual submitting the address change request and NOT the name of the company or trust on title. Failure to make timely payments due to undeliverable mail could result in loss of the discount and/or accrual of interest.Corporations, Partnerships, LLC's and Non-Profit Organizations requesting a change of mailing address must provide a copy of the legal documentation authorizing signature authority on behalf of the organization, in addition to the completed Mailing Address Change Request and therefore should return the PDF version of the Mailing Address Change Request form. See the download link below. 

ONLINE MAILING ADDRESS CHANGE REQUEST FORM:  The online form provides the option to submit the Mailing Address Change request electronically by providing an electronic signature. You may use this form to ask the Multnomah County Division of Assessment, Recording and Taxation (DART) to correct the owner's mailing address on a real property account for your Property Tax Bill and other Property Tax notices for property located in Multnomah County. Please complete all required sections.Link here for the online Mailing Address Change Request Form. 

LOOK UP YOUR PROPERTY INFORMATION: Click the link below to look up your property account number if it is unknown. Use the 'CONTINUE AS A GUEST' login, no password required.  

RETURN PDF VERSION: A PDF version of the MAILING ADDRESS CHANGE REQUEST form can be returned by email or mail. Multnomah County Change of Mailing Address Request (332.66 KB)form. (34.72 KB)

PDF INSTRUCTIONS: After filling out this form, please print it, sign your name in the signature field, add your email and phone contact details and then email or mail the form to the Multnomah County Assessor’s Office.

EMAIL: After completing and signing the form, email it to

MAIL: You may mail the completed and signed form to:
Mailing Address Change Multnomah County DART
PO Box 5007
Portland, OR 97208-5007

Business personal property: change name, mailing address or business location

Send changes to or leave a voicemail at 503.988.6332.

Other changes for real property

Ownership changes in Multnomah County

  • Ownership changes for Real Property take place after a deed or another appropriate legal document is recorded. 
  • Name and/or ownership changes due to marriage, death, divorce, or other court orders, require specific documentation. Please call 503-988-2273 (Option 4) for details.

Divisions of real property accounts are initiated through the planning, building or permit department of the appropriate jurisdiction. When that process is complete and all documents are recorded, DART Parcel Management will process the changes and update the county's tax rolls and maps

Consolidations of real property accounts are initiated through DART Parcel Management.