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Assessment and Taxation

We can help you understand the county's appraisal and assessment of your property, paying your property taxes, getting a marriage license, passports, recording documents, mapping, and many other services.

Featured Services

Welcome to the Washington County Department of Assessment & Taxation. We’re here to serve our communities by making it simple and straightforward to get the services you need when you need them.

Our lobbies are open. We, however, continue to encourage the public to use the alternate options of phone, e-mail, USPS, online, or drop box.

Please call us at one of the numbers listed to discuss your service needs:  

If possible, stay home, stay safe.


Department of Assessment & Taxation

155 N First Avenue
Hillsboro, Oregon 97124
Tuesday: 8:30 am - 5:00 pm


2022-23 Property Tax Statement

Washington County tax statements to mail out between Oct 17th and 19th. Find more information on 2022-23 Property Taxes and other resources.

Declaración del impuesto sobre la propiedad 2022-23

Los propietarios del condado de Washington recibirán declaraciones de impuestos sobre la propiedad entre el 17 y el 19 de octubre. Encuentre más información sobre los impuestos a la propiedad 2022-23 y otros recursos