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Responsibilities
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.
Site Update

To increase transparency and accessibility, Washington County will now be displaying owner names on the guest public access website. Please note that per ORS 192.345 and 192.368, suppressed names and addresses will continue to be hidden from public view. Please contact the assessor’s office at 503-846-8741 for more information.
Contact Us

Hours of Operation

M-F 8:30 AM - 5:00 PM

Change of Address

Submit a Change of Address
Location

155 N. First Ave., Suite 130
Hillsboro, Oregon 97124

Assessment and Taxation Map with Drop Box Location
Tax Statements
Annual property tax statements will be mailed out on or before October 25. Payments are due by November 15 and must be postmarked on or before November 15 to be considered timely. If the 15th falls on a weekend, payments will be received as timely through the next business day. Please return the lower portion of your tax bill(s) with your payment in the envelope provided.
Payments

Online:

  • Debit/credit card: 2.45% convenience fee applies
  • Routing & Account number $.95 convenience fee applies

Mail or in Person:

  • Please DO NOT mail cash.
  • Please make checks payable to Washington County. Washington County staff have no authorization to alter checks in the absence of the bearer, therefore checks must be processed as-is.
  • Please do not post date checks. All checks are processed when received.
  • Make checks payable to Washington County (Please do not paper-clip or staple check to payment stub)

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

Drop Box Locations:

155 N. 1st Ave., Ste 130
Hillsboro, OR 97124

  • Indoor:  Front Entrance Lobby of Public Services Building (just to the left of Suite 130)
    • Available:  Monday – Friday, 8:00am – 5:00pm
  • Outdoor: Rear Parking Lot Entrance of Public Services Building (under blue sign for “Tax Payments”)
    • Available: 24 Hours
  • NOTE: Drop box locations are monitored daily and are locked and unavailable temporarily after each due date.

By Phone:

  • Please call 1-888-510-9274
  • Debit/credit card: 2.45% convenience fee applies
  • Routing & Account number: $.95 convenience fee applies

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.

 
 

DISCLAIMER

Every effort has been made to offer the most current and correct information possible on these pages. The information included on these pages has been compiled by County staff from a variety of sources, and is subject to change without notice. Washington County makes no warranties or representations whatsoever regarding the quality, content, completeness, accuracy or adequacy of such information and data. Washington County reserves the right to make changes at any time without notice. Original records may differ from the information on these pages. Verification of information on source documents is recommended. By using this application, you assume all risks arising out of or associated with access to these pages, including but not limited to risks of damage to your computer, peripherals, software and data from any virus, software, file or other cause associated with access to this application. Washington County shall not be liable for any damages whatsoever arising out of any cause relating to use of this application, including but not limited to mistakes, omissions, deletions, errors, or defects in any information contained in these pages, or any failure to receive or delay in receiving information.