Mississippi charges a reduced 5% sales tax on motor vehicles — lower than its 7% general rate — applied to the purchase price after any qualifying trade-in credit. This tool applies that rate and any taxable dealer fees to estimate what you’ll owe when you register the car.
How it works
The taxable amount is the price minus a qualifying trade-in plus any taxable dealer fee, and the rate is the flat 5% motor-vehicle rate:
taxable = max(0, purchase price - trade-in credit) + taxable dealer fee
car tax = taxable x 5%
total cost = purchase price + car tax + dealer fee
Unlike states that stack county and city automotive rates, Mississippi applies the single statewide 5% rate to vehicles. The trade-in credit is real for qualifying dealer transactions, so only the net difference is taxed.
Example and notes
A $30,000 car with a $10,000 trade-in: the taxable base is 30,000 - 10,000 = 20,000, and the tax is 20,000 x 0.05 = 1,000 dollars. This figure is sales tax
only — add the flat registration fee, privilege license tax, and annual ad
valorem property tax when budgeting the full cost at the DMV. Confirm whether
your specific dealer documentation fee is taxable, since treatment can vary.