Oregon Revised Statutes Revenue and Taxation § 311.684

(1) The taxpayer who claimed deferral of property taxes on the homestead dies or, if there was more than one claimant, the survivor of the taxpayer who originally claimed deferral of property taxes under ORS 311.668 dies.

(2) Except as provided in ORS 311.683, the property with respect to which deferral of taxes is claimed is sold, or a contract to sell is entered into, or some person other than the taxpayer who claimed the deferral, including a transferee, becomes the owner of the property.

(3) The tax-deferred property is no longer the homestead of the taxpayer who claimed the deferral, except in the case of a taxpayer required to be absent from such tax-deferred property by reason of health.

(4) The tax-deferred property, a manufactured structure or floating home, is moved out of the state.