In Person or By Mail

COVID-19 Update

Our lobbies will be open to the public starting February 16 but 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, Suite 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, Suite 130 MS8, Hillsboro, OR  97124.

Drop Box Locations: 

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