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New Taxes and Fees for Road Maintenance

To raise additional money to improve the state’s existing roads and bridges, the S.C. General Assembly passed Act 40, which took effect in July 2017. The law increases the state’s gasoline tax by 12 cents per gallon over six years (two cents per year) and imposes a variety of fee increases on vehicles. The state estimates that Act 40 will raise about $625 million of new annual revenue when fully implemented. For more details refer to the legislation.

Act 40 requires that most of the new revenue be accounted for in a special fund called the “Infrastructure Maintenance Trust Fund” for use only to repair, maintain, and improve South Carolina’s existing highway system. The Act also creates a “Safety Maintenance Account” to enable motorists to claim state income tax credits for amounts spent on preventive maintenance for their vehicles, subject to certain limits. Get more information about these tax credits.

Act 40 cited the deteriorated condition of our state’s existing roads and bridges to justify increasing taxes by $625 million a year, and it limited using these increased tax collections to repairing, maintaining, and improving those deteriorated roads and bridges. Because of our commitment to showing that the new revenue is properly accounted for and used only for purposes authorized in the Act, the links below for the Infrastructure Maintenance Trust Fund (IMTF) and the Safety Maintenance Account (SMA) open to tables that we update monthly. These tables disclose the receipts and disbursements of the various new taxes and fees imposed by Act 40.

Infrastructure Maintenance Trust Fund

Road Projects Spending Report

Distributions to Donor Counties


Safety Maintenance Account