Wisconsin Statutes Taxation (Ch. 70 to 79) § 78.19. Refund for fuel destroyed

If any motor vehicle fuel in the possession of a licensee is destroyed by fire, lightning, storm, flood or accident not caused by the willful act of that licensee or any employee thereof, before it is sold or used by that licensee, and if the licensee applies to the department and proves the destruction or loss satisfactorily to the department, the department shall authorize a tax credit or shall refund the amount of tax paid thereon. Such application or claim shall be filed with the department within 15 days after the motor vehicle fuel is destroyed or lost or the tax credit or refund will not be allowed.