Assessment & Taxation

A&T Office Closed


Customer Advisory (COVID-19)

All of Washington County Department of Assessment & Taxation offices are closed to the public to help mitigate the spread of COVID-19.
We continue to provide service to our customers remotely.  Business can be transacted by phone, e-mail, or online.
For questions or to learn about options, please contact the following departments:
  • Appraisal 503-846-8826
  • Recording 503-846-8752
  • Special Programs  503-846-8741
  • Cartography 503-846-8871
  • Tax Collections 503-846-8801

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.

Payment / Mail Drop Box

A 24 hour drop box is located on the West side of the building.

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.

Mail Payment

Washington County
Assessment & Taxation 
155 N First Avenue, Suite 130 MS8
Hillsboro, OR 97124


Pay Taxes Online