DART signOwnership, lot adjustments, mailing address changes in Multnomah County

For real property

Business personal property

Manufactured structures

Floating property

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 503-988-3326 (Option 5) for details.

Real property: mailing address changes for tax statements

Write or email Customer Service (please include your tax account number or the property address):

Address change
Multnomah County DART
PO Box 5007
Portland, OR 97208-5007


Failure to make timely payments due to undeliverable mail could result in loss of the discount and/or accrual of interest.

Real property: Property divisions and lot line adjustments

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.

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

If it is time to file your annual personal property return, just write in the changes on the return.

If it is NOT time to file your annual personal property return, write (including your account number) to the Multnomah County Appraisal Section at:

Personal Property
Multnomah County DART
PO Box 2716
Portland, OR 97208-2716

If you have questions about any of the above, call DART Customer Service 503-988-3326. Please have your account number ready.