St. Louis buyers can shop on both sides of the river and out into St. Charles County. Because Missouri taxes by your home address, not the dealer’s, we can shop that whole market for you without changing your tax bill.
Car Concierge is a licensed auto broker and car buying concierge based in Minnesota, working for buyers in St. Louis and across the country. We don’t take money from dealers. You pay one flat fee, and our only job is getting you the right vehicle at the best price.
How it works for St. Louis buyers
- Tell us what you’re looking for, your budget, and your timeline, by phone or through our contact form.
- We search dealer inventory around St. Louis and nationwide, and bring you the best options with real pricing.
- We negotiate the price and check the buyer’s order for markups, add-ons, and fees before you sign.
- You sign and pick up locally, or we arrange delivery through our auto transport service.
Taxes and fees for St. Louis car buyers
Here’s what St. Louis buyers should expect on a dealer purchase. Rates were checked against official sources in October 2026 and can change, so confirm with your local office before you buy.
- Sales tax: You’ll pay 4.225% state tax plus the local rate for your home address (the city rate inside city limits, or the county rate outside). The Missouri DOR’s tax calculator gives the exact amount.
- How Missouri taxes vehicles: Missouri charges 4.225% state sales tax plus local sales tax. The local rate is based on your home address when you title the vehicle, not where you buy it.
- Trade-in credit: Yes. Your trade-in reduces the taxable amount, including on out-of-state purchases if you bring proof of the trade.
- Dealer doc fees: Missouri caps the dealer administrative fee at a CPI-adjusted maximum, which is $620.79 for 2026. It must be itemized, labeled as not an official fee, and charged the same to every retail customer.
- Title and registration: You have 30 days to title at any Missouri license office. The late penalty starts at $25 and can reach $200. The title fee is $8.50, plus processing fees.
Registration and inspections in St. Louis City
Where to title: Any Missouri Department of Revenue license office.
Inspections: Emissions testing is required in St. Louis City and St. Louis, St. Charles, and Jefferson counties, in addition to Missouri’s safety inspection rules. A safety inspection is required at titling, though newer vehicles with under 150,000 miles may be exempt. Emissions testing is required in St. Louis City and St. Louis, St. Charles, and Jefferson counties.
Good to know in St. Louis
- You have 30 days to title. The late penalty starts at $25 and can reach $200.
- Missouri temporary permits last 30 days (up to 60 for qualified dealers).
- Missouri’s lemon law covers new vehicles for one year from delivery or the warranty term, whichever ends first.
Buying from another state
If you buy out of state, you pay Missouri state and local tax when you title at a Missouri license office. Bring your trade-in paperwork so the credit is applied. We handle the logistics and make sure the dealer’s paperwork matches your home state’s rules.
What it costs
Our service is a flat fee: $900 for Standard Concierge, $1,000 with trade-in help, and $1,200 for luxury vehicles over $120,000. You’ll know the total up front. See pricing for details.
St. Louis car buying FAQs
You’ll pay 4.225% state tax plus the local rate for your home address (the city rate inside city limits, or the county rate outside). The Missouri DOR’s tax calculator gives the exact amount.
Yes. Your trade-in reduces the taxable amount, including on out-of-state purchases if you bring proof of the trade.
Missouri caps the dealer administrative fee at a CPI-adjusted maximum, which is $620.79 for 2026. It must be itemized, labeled as not an official fee, and charged the same to every retail customer.
Emissions testing is required in St. Louis City and St. Louis, St. Charles, and Jefferson counties, in addition to Missouri’s safety inspection rules.
Yes. We search dealers nationwide and can arrange delivery through our auto transport service. If you buy out of state, you pay Missouri state and local tax when you title at a Missouri license office. Bring your trade-in paperwork so the credit is applied.
We charge a flat fee: $900 for Standard Concierge, $1,000 with trade-in help, and $1,200 for luxury vehicles over $120,000. We don’t accept dealer compensation.
Get started
Ready to buy your next vehicle in St. Louis without the dealership hassle? Schedule a consultation or call 612.662.7788. Want to see the other markets we serve? Browse all service areas.
Sources: Missouri DOR: Sales tax calculator; Missouri DOR: Buying a vehicle; RSMo 301.558 (admin fee); Missouri DOR: Sales tax calculator.