Ohio Rev. Code Ann. § 5735.06
(A) On or before the last day of each month, each motor fuel dealer shall file with the tax commissioner a report for the preceding calendar month on a form prescribed by the commissioner for that purpose. The report shall include the following information:
(3) An itemized statement of the number of gallons of motor fuel which such motor fuel dealer has during the preceding calendar month:
(B) The report shall show the tax due, computed as follows:
(1) The following deductions shall be made from the total number of gallons of motor fuel received by the motor fuel dealer within the state during the preceding calendar month:
(c) To cover the costs of the motor fuel dealer in compiling the report, and evaporation, shrinkage, or other unaccounted-for losses: