How much does it cost to register a car in Mississippi?

Mississippi charges a flat registration (tag) fee plus an annual privilege license tax and a county ad valorem property tax. The ad valorem portion is by far the largest and depends on your vehicle's assessed value and your county's millage rate, so totals vary a lot across the state.

What is the ad valorem tax on a Mississippi car?

Mississippi assesses motor vehicles at 30% of their market value, then applies your county's millage rate to that assessed value. Because millage rates differ by county, the same car can cost noticeably more to tag in one county than another.

Does the registration fee change as the car ages?

Yes. The ad valorem portion drops over time because Mississippi reduces a vehicle's assessed value as it depreciates each year, so an older car generally costs less to tag than a new one of the same original value.

Is the privilege license tax the same as the registration fee?

No. The registration (tag) fee is a flat state charge, while the privilege license tax is a separate annual road-use charge. Both appear on your renewal alongside the county ad valorem tax, and this calculator separates them so you can see each line.

Does this include sales tax on the purchase?

No. This tool estimates the recurring annual tag and ad valorem cost, not the one-time 5% motor-vehicle sales tax you pay when you first buy the car. Use the Mississippi Car Sales Tax Calculator for the purchase tax.

Mississippi Vehicle Registration Fee Calculator

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Registering a vehicle in Mississippi means more than a flat fee: most of your annual tag cost is the county ad valorem property tax, which is based on your vehicle’s assessed value and your county’s millage rate. This tool combines the flat registration fee, the privilege license tax, and the ad valorem tax to estimate what you’ll pay at renewal.

How it works

Mississippi assesses motor vehicles at 30% of market value, then applies the county millage rate (mills, where 1 mill = $0.001 of tax per dollar of assessed value):

assessed value = market value x 30%
ad valorem tax = assessed value x (millage / 1000)
total tag cost = flat registration fee + privilege license tax + ad valorem tax

The flat registration fee and privilege license tax are set statewide, but the millage rate is local — so the same vehicle can cost very different amounts to tag depending on your county. As a car depreciates, its assessed value falls and the ad valorem portion shrinks each year.

Example and notes

A vehicle worth $20,000 in a county with a 100-mill rate is assessed at 20,000 x 0.30 = 6,000, giving an ad valorem tax of 6,000 x (100 / 1000) = 600 dollars. Add the flat registration fee and privilege license tax for the full renewal. These figures are estimates — confirm your exact millage rate and any legislative tag credit with your county tax collector, since Mississippi periodically adjusts these amounts.