IFTA quarterly tax filing is the process of submitting fuel tax reports every three months to the state or province where the trucking company is based. This report must be filed by the last day of the month following the end of the quarter. The report must include information such as the total miles traveled in each jurisdiction, the number of gallons of fuel purchased, and the number of gallons used in each jurisdiction. Failure to file an IFTA return or pay taxes owed can result in penalties, fines, and potential loss of IFTA license. JST Truck Permits can assist trucking companies in filing their IFTA quarterly tax returns.