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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.

Temporary closure | Cierre temporal

We apologize for the inconvenience, but on Wednesday, July 17, 2024, our Assessment & Taxation offices will be closed from 8:30 a.m. to 10:45 a.m. for a staff meeting. Thank you for your understanding.

Pedimos disculpas por las molestias. La Oficina de Evaluación e Impuestos cerrara temporalmente el miércoles, 17 de julio de 8:30 a.m. a 10:45 a.m. para una reunión de personal.

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:


Department of Assessment & Taxation

155 N First Avenue
Suite 130, MS 9
Hillsboro, Oregon 97124

Hours and directions

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