In Person or By Mail

COVID-19 Update

Our lobbies are open to the public, however, to limit the spread of COVID-19, we are encouraging the public to use the alternate options of phone, e-mail, US Postal Service, online or drop box.

The county will accept a check or money order for taxpayers wishing to make payments by mail

The county will accept cash, check, money order, VISA/MasterCard, Discover, and American Express for taxpayers wishing to make payments in personA 2.45% (minimum $1.50) convenience fee will apply to all VISA/MasterCard, Discover and American Express payments.

  • When paying by check or money order, remember to include your account number on the check or money order. Your account number is located at the top right hand portion of your property tax bill.
  • All cash payments may be made in person at the county tax office, located at 155 N. First Ave., Ste. 130, Hillsboro, OR  97124. The Office hours are Monday through Friday, 8:30 - 5:00.  Please do not mail cash payments.
  • The county tax office's mailing address is 155 N. First Ave., Ste. 130 MS 8, Hillsboro, OR  97124.
  • 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. 

Drop Box Locations: 

  • Washington County Assessment & Taxation 
    155 N. First Ave., Ste. 130
    Hillsboro, OR 97124
  • Parking Lot Rear Entrance (24-hour drop site)
  • Front Entrance Lobby (8 a.m - 5 p.m., Monday through Friday)