The sales tax on a car in Missouri is 4.225% for the state portion. However, the total amount you pay is significantly higher because local governments add their own taxes. The combined state and local sales tax rate is what truly matters for your purchase. These local rates vary by city and county, meaning the total sales tax can range from 4.225% up to around 10.5% depending on where you register the vehicle.
The tax is calculated on the vehicle's net purchase price. This is the final negotiated price, minus any manufacturer rebates or trade-in allowance you receive. For example, if you buy a car for $30,000 and have a $5,000 trade-in, you pay sales tax on the $25,000 difference.
| Missouri County/City | Example Combined Sales Tax Rate | Tax on a $25,000 Net Purchase |
|---|
| St. Louis City | 9.679% | $2,419.75 |
| Kansas City | 8.85% | $2,212.50 |
| Springfield | 8.10% | $2,025.00 |
| Columbia | 8.35% | $2,087.50 |
| A Rural County (e.g., Adair) | 4.975% | $1,243.75 |
You pay this tax at the time of titling and registration, not directly to the dealership. The Missouri Department of Revenue (DOR) collects it. The law requires you to title and pay sales tax in the Missouri city or county where you reside. Be prepared for this cost, as it's a substantial upfront expense on top of the car's price. Some out-of-state purchases may have different rules, so it's crucial to check with the DOR if you're buying from a private seller or a dealer in another state.
