(1) A dealer, on or before the twenty-fifth day of the month following the end of each calendar quarter, shall file a report and remit the tax due. A dealer who has made no taxable deliveries during the reporting period shall file a report.
(2) A user operating a vehicle used for commercial purposes shall be required to submit a report on or before July 25 of each year, for the previous permitted year and shall remit the tax due. The report must state the ending odometer reading, the number of miles traveled in Tennessee, the number of miles traveled outside Tennessee, and other information required by the commissioner. In the absence of an ending odometer reading, the previous year's mileage shall be presumed to be forty thousand (40,000) miles. A report shall be filed even if no tax is due. Failure to file this report shall result in the tax being assessed based upon the presumption that the vehicle traveled forty thousand (40,000) miles.
(3) In computing the tax to be remitted, a user required to report ending odometer readings shall divide the total miles traveled in Tennessee by the mileage allowance for the applicable class. The resulting number of gallons used shall be multiplied by the tax rate imposed, to obtain the tax due. The cost of the permit shall be deducted from the tax due to obtain the tax to be remitted with the annual report.
(4) The number of gallons used shall be computed using the following mileage allowances: Passenger cars — 19 miles per gallon; Class 1 — 14 miles per gallon; Class 2 — 14 miles per gallon; Class 3 — 8 miles per gallon; Class 4 — 8 miles per gallon; and Class 5 — 5 miles per gallon.