Oregon Revised Statutes Probate Law § 118.225

(1) Upon application of the executor and the securing of all taxes that are payable by bond, deposit or other good collateral acceptable to the Department of Revenue, the department may extend the time for payment of any part of the amount imposed by ORS 118.005 to 118.540.

(2) The extension under this section shall be for a period not in excess of 14 years from the date prescribed by ORS 118.100 for payment of the tax.

(3) Under rules prescribed by the department, the department may extend the time for the payment of any deficiency of a tax imposed by ORS 118.005 to 118.540 for a reasonable period not to exceed four years from the date otherwise fixed for the payment of the deficiency.