Or. Admin. Code § 150-316-0295
If the tax has actually been withheld at the source and reported to the Department of Revenue, credit or refund shall be made to the recipient of the income even though such tax has not been paid to the Department by the employer. Where the employer has neither reported nor paid the tax required to be withheld from an employee's wages but the employee submits evidence proving to the satisfaction of the Department that the employer actually did withhold such a tax, the Department shall allow the employee credit or refund for the amount so proved. Ordinarily, minimum satisfactory evidence shall consist of a statement from the employer showing the amount of tax withheld and an affidavit of the employee as to the facts upon which the claim for credit or refund is based.
Or. Admin. Code § 150-316-0295
Stat. Auth.: ORS 305.100
Stats. Implemented: ORS 316.187