Your county tax collector mails a renewal notice roughly a month before your anniversary month, and with the holidays and year-end spending, the amount on it is often the first time you look closely at what registration costs. Mississippi has no single state office that sets one number. The bill is built from parts, set by different levels of government, and only some of them are within your power to check. Here is how they fit together, using numbers invented for illustration.
The flat pieces: the same everywhere in the state
For a passenger vehicle of 10,000 pounds gross vehicle weight or less, the ad valorem tax page lists two charges that do not depend on your county:
- a registration fee of $12.75 for a renewal ($14.00 for a first-time registration);
- a privilege tax of $15.00 for the passenger class, which is the figure in the Department of Revenue's own example.
Together these come to $27.75, and they are identical for you and for a driver in the next county.
The variable piece: ad valorem tax
The Department of Revenue states that assessed value is 30% of the vehicle's original MSRP, reduced for depreciation over about ten years, with a $100 minimum for passenger vehicles. That assessed value is then multiplied by the millage rate set by your county. The state sets the method, and the county sets the rate.
The year-by-year depreciation percentages are not published where we could find them in an official Department table, so we are not going to guess at one. For the walkthrough, assume a vehicle whose ad valorem tax comes out to $600 before any credit. That figure is invented, and your own number depends on your vehicle and your county.
Putting it together
- Registration fee: $12.75
- Privilege tax: $15.00
- Ad valorem tax (hypothetical): $600.00
- Subtotal before the Legislative Tag Credit: $627.75
The Legislative Tag Credit comes off the ad valorem tax. It was created in 1994, is recalculated by the Department each year against the balance of a dedicated state fund, and is applied automatically when you renew on time. The amount is not a fixed percentage, so the notice from your county is the only reliable place to see what it was for you.
What you can verify yourself
- The vehicle. Check that the notice describes your vehicle. The assessed value is looked up from the VIN, so a wrong VIN on file can mean a wrong value.
- The assessed value. Your tax collector can look it up by VIN. Ask what it is, and compare it to what you would expect from 30% of the original MSRP less depreciation. A $100 minimum applies to passenger vehicles.
- The county rate. Rates differ between counties, and your county tax collector or board of supervisors can tell you what applies.
- The address. The notice goes to the address on file. If you moved, tell the tax collector so the notice and decal reach you.
Why a late payment costs more than the penalty
Using the same made-up $600, the late penalty is charged against the ad valorem tax: 5% ($30) once you are more than 15 days overdue, then 10% ($60), 15% ($90), 20% ($120) and a 25% maximum ($150). At that maximum you also lose the Legislative Tag Credit for that renewal. The late renewal penalties page has the full table and the separate citation risk for an expired tag.
The simplest way to avoid the extra cost is to renew inside the grace period, by whichever channel your county offers. The renewal steps page explains the options. Amounts and rules can change, and your notice from the county is the authority on your own bill.
Sources
- Mississippi Dept. of Revenue — Motor Vehicle Ad Valorem Taxes — https://www.dor.ms.gov/motor-vehicle/motor-vehicle-ad-valorem-taxes
- Mississippi Dept. of Revenue — Motor Vehicle Frequently Asked Questions — https://www.dor.ms.gov/motor-vehicle/motor-vehicle-frequently-asked-questions
- Mississippi Code § 27-51-103 — Motor Vehicle Ad Valorem Tax Credit — https://codes.findlaw.com/ms/title-27-taxation-and-finance/ms-code-sect-27-51-103/