South Carolina's Motor Fuel Income Tax Credit is computed by comparing preventative maintenance costs incurred in South Carolina to the total of 7 cents (for tax year 2020) per gallon of fuel purchased in South Carolina.
The lower of the two amounts is the credit you're eligible for.
Please see Form I-385 for the precise computation, and GATHER YOUR RECEIPTS FOR THE STATE’S MOTOR FUEL INCOME TAX CREDIT for more information.
