Making a Payment Online Via the Internet: A valid e-mail address is required as confirmation receipt is e-mailed to the user. Official Payments Corporation is a third-party payment service provider, through which Yamhill County can accept Credit/Debit cards or e-check property tax payments. To make a payment click on the payment option above. Please contact our office (503) 434-7521 if you feel the above account balance is not the most current. Yamhill County does not collect or retain any portion of the convenience fee that is charged. Your payment is considered timely if the transmission time and date is prior to the 15th at 11:59pm