Mississippi charges a 7% state sales tax on vehicle purchases. The tax applies to the price after any trade-in allowance, because Mississippi grants a trade-in tax credit. This tool estimates the sales tax owed and the total cost on a car bought in Mississippi.
How it works
The taxable amount is the purchase price minus a qualifying trade-in, and the sales tax is that amount times Mississippi’s 7% rate:
taxable = max(0, purchase price - trade-in allowance)
sales tax = taxable * 0.07
total = (purchase price - trade-in) + sales tax
The trade-in credit is real in Mississippi: only the net difference between the new car’s price and the trade-in value is subject to the 7% tax.
Example
Buy a car for $30,000.00 and trade in a vehicle worth $5,000.00. The
taxable amount is 30,000 - 5,000 = 25,000. At 7% the
sales tax is 25,000 * 0.07 = $1,750.00, and the total
you pay (net price plus tax) is $26,750.00.
Notes
This is an estimate only and is not financial or tax advice. It computes the 7% Mississippi state sales tax on the purchase; title, registration, plate fees, and any local or county vehicle taxes are additional. Some Mississippi localities levy an extra rate on top of the state base. Confirm the current rate and any local add-ons with the Mississippi Department of Revenue or motor-vehicle agency before you budget.