ORS § 223.275
The recorder of a local government shall, when installments and interest on any final assessment in the bond lien docket are due, make the proper extensions of the installments and interest on the bond lien docket and turn the same over to the treasurer of the local government. The treasurer then shall notify the property owner that the installments are due and payable, but a failure of any owner to receive the notice shall not prevent collection of the installment as provided in ORS 223.270. The treasurer shall issue a receipt to the person paying the installments and interest, and shall file duplicates of the receipts with the recorder. When the treasurer returns the bond lien docket, the recorder shall make the proper entries on the bond lien docket showing the amount of each payment and the date of the payment.
ORS 223.275