Oregon Revised Statutes Revenue and Taxation § 311.370

(2) Upon receipt, the tax collector shall deposit with the county treasurer all money collected by the tax collector under subsection (1) of this section. The county treasurer shall issue to the tax collector duplicate receipts for the money and shall hold it in a special account in the name of the tax collector.

(3) Upon delivery of the assessment roll pursuant to ORS 311.115, the tax collector shall post the payments evidenced by the receipts, and the amount of any underpayment or overpayment. The tax collector shall then make a statement to the county treasurer specifying the amount to be retained in the special account to make the refunds required under subsection (4) of this section. The tax collector shall direct the county treasurer to transfer the balance in the special account to the unsegregated tax collections account described in ORS 311.385.

(4) Any sum collected by the tax collector that exceeds the amount extended on the tax roll as provided in subsection (1)(b) of this section by more than $10 shall be refunded to the taxpayer by the county treasurer upon receiving instructions for doing so from the tax collector. If an amount remains that cannot be refunded by June 30 of the next calendar year, the tax collector shall instruct the treasurer to transfer the amount to the unsegregated tax collections account described in ORS 311.385.

(5) If a sum less than the tax charged on the tax roll has been collected, the deficiency shall be canceled by the tax collector if the deficiency is $10 or less, and the tax collector shall note upon the tax roll opposite the appropriate account, “Tax deficiency canceled pursuant to ORS 311.370.” Otherwise, the deficiency shall be collected as provided by law.

(6) If an appeal that is perfected under ORS 311.467 for taxes collected under ORS 311.465 results in a refund under ORS 311.806, the reimbursement for the refund to the unsegregated tax collections account shall be made from the account provided for in subsection (2) of this section.