Tennessee Code Title 67. Taxes and Licenses § 67-3-1111

(a) When a motor vehicle bearing a permit is sold or transferred, the seller and purchaser shall notify the commissioner within ten (10) days of the sale or transfer and a new permit shall be issued in the new owner's name.

(b) When a motor vehicle bearing a permit is destroyed or the liquified gas carburetor system removed, the user shall be refunded that portion of the prepaid tax that corresponds to the number of complete months remaining in the permitted year, beginning with the month following the date on which the vehicle or carburetor was no longer utilized. No refund shall be made if the use of the vehicle ceased in June. The user shall submit to the commissioner an affidavit identifying the vehicle, the permit number, the circumstances that entitle a refund, and other information required by the commissioner. On receipt of the affidavit and when satisfied as to the circumstances, the commissioner shall make refund.

(c) A user is entitled to a refund of the amount of the Tennessee liquified gas tax paid on each gallon of liquified gas used outside this state. On verification by the commissioner that the report was complete and timely filed, the refund shall be paid if ten dollars ($10.00) or more is due the user. No refund less than ten dollars ($10.00) shall be paid. No refund shall be granted if the report is not timely filed.