Assessment & Taxation

The responsibilities of the Department of Assessment and Taxation include appraisal and assessment of property; collection of property taxes for all taxing entities; recording documents, land plats, issuing marriage licenses, records retention and administration of Elections.

Manufactured Structures Important Notice

At this time, Washington County is unable to process manufactured home ownership transfers on behalf of the State of Oregon's Department of Consumer and Business Services (DCBS).

For information about where and how you can process ownership transfers, please see the DCBS Oregon Building Codes Division website at or contact them at:1535 Edgewater St. NW, Salem, OR 97304; telephone: (503) 373-1309.

Property Tax Statement

Many of you will be receiving your annual Property Tax Statement on or before October 25, 2016.  Payment for taxes are due on or before November 15, 2016.  Two drop boxes are located in the Public Services Building, 155 N. First Ave., Hillsboro.  These boxes are available October 26th through November 15th.  The 24 hour drop box site is located at the rear of the building; the other drop box site is available Monday through Friday 8:30 am - 5:00 pm, located in the Public Services Building lobby outside Room 130.


For general tax questions, please see Property Tax Questions.  If you are looking for specific tax data relevant to your property, please call our office at 503-846-8741.

Payments must be POSTMARKED on or before November 15, 2016.  Please return the lower portion of your tax bill(s) with payment in the enclosed envelope.  You may also send payments directly to:

Property Tax Payment Center
PO Box 3587
Portland, OR 97208-3587


Washington County
Assessment & Taxation 155 N. First Avenue, Suite 130
Hillsboro, OR 97124

Pay Taxes Online