On a $35,000 Car, a St. Louis City Buyer Owes $3,387.65 in Tax at the License Office
Revised October 21, 2026
Is it better to get an auto loan from a bank or credit union?
On price, a credit union usually wins. The NCUA’s rate survey for December 26, 2025 put the national average new-car loan at 5.44% at credit unions and 7.41% at banks for a 60-month term, a gap of almost two full points. Used-car loans showed the same pattern. Averages are not your quote, so get a written offer from a credit union and a bank, and make the dealer beat the better one.
Keep reading ↓Thirty days after the new-car smell, a Missouri buyer stands at a license office counter with a paper number ticket going soft in a sweaty hand, and learns the sales tax was never inside the loan. On a $35,000 car, the state’s 4.225 percent is $1,478.75. Live in the City of St. Louis and the Department of Revenue’s motor vehicle local rate chart adds 5.454% more, another $1,908.90 on that $35,000. That is $3,387.65 in state and city tax on a $35,000 car, owed at the counter, and it was nowhere on the monthly payment you circled in blue ink.
Screenshot this before you sign: $35,000 car, City of St. Louis address, $3,387.65 due at the license office. Trading one in? The Department of Revenue figures the tax on the purchase price less any trade-in allowance, so your number drops. Put three things in the folder now: the title or manufacturer’s statement of origin, a signed Form 108, and a paid personal property tax receipt.
That is the St. Louis catch, and it sits right next to a second one. When a dealer arranges your financing, it sends your application to banks and credit unions, and the lender that wants the deal quotes the dealer a rate. The Consumer Financial Protection Bureau calls that the buy rate. The rate printed on your sheet is the contract rate, and the CFPB says plainly that the rate offered to you may be higher to compensate the dealer. The lender quoted the dealer one number. The dealer can quote you another.
Both catches have the same fix: walk in holding your own written number, with the tax already counted. And the lender most likely to give you a lower number is a credit union. Not because of a promotion. Because of the federal numbers.
Is it better to get an auto loan from a bank or credit union?
On price, a credit union usually wins. The NCUA’s rate survey for December 26, 2025 put the national average new-car loan at 5.44% at credit unions and 7.41% at banks for a 60-month term, a gap of almost two full points. Used-car loans showed the same pattern. Averages are not your quote, so get a written offer from a credit union and a bank, and make the dealer beat the better one.
Those are federal numbers, not a sales flyer. They come from the NCUA’s Credit Union and Bank Rates report, built on S&P Global Market Intelligence data for the last Friday of the quarter. The 48-month used-car loan showed 5.53% at credit unions against 7.73% at banks.
Two points sounds like nothing until it turns into dollars leaving your checking account. Run that $35,000 through any loan calculator at both averages and read the total-interest line, not the payment. The gap is real money, for the same car, the same driver and the same credit file. Same Saturday. Different building.
Getting in the door is easier than most people think. St. Louis Community Credit Union, for one, is open to anyone who lives or works in St. Louis City or St. Louis County, along with several neighboring counties on both sides of the river. You join by opening a regular savings account, and the minimum deposit is $1. One dollar bill slid across a teller counter. Do that a few days before you shop, not at the dealership.
Here is the line worth saying out loud at the dinner table: the payment that fits your budget can still be the expensive one. A payment a little higher fits almost every budget the lower one fits. That is exactly why nobody notices.
Missouri makes you pay the car sales tax yourself, 30 days later
The license office line moves one number at a time, folders and envelopes pressed to chests, a printer clacking somewhere behind the glass. That is where the tax gets paid. In Missouri, you title the car and pay the sales tax at a license office after the sale. The Missouri Department of Revenue says you have 30 days from the date of purchase to title and pay sales tax, at a state rate of 4.225 percent plus your local sales tax, on the purchase price less any trade-in allowance. Miss the window and there is a $25 title penalty on the 31st day, rising another $25 for every 30 days late, up to $200. Bring the title signed over to you or the manufacturer’s statement of origin, a signed Application for Missouri Title and License (Form 108), and a paid personal property tax receipt.
The local piece follows your home address, not the dealer’s. For a City of St. Louis address, the DOR chart lists 5.454%; in St. Louis County, St. Charles or Jefferson County, the rate depends on the town you live in, and the same chart lists each one. Either way, a buyer who got preapproved for the car price only can come up thousands of dollars short at that counter. In Illinois it usually runs the other way. The Illinois Department of Revenue says a purchase from a registered Illinois retailer is reported on Form ST-556, and generally the retailer will complete and file that return along with the title forms for you. A Belleville or Edwardsville buyer tends to see the tax inside the deal. Either side of the river, ask every lender one blunt question: does this preapproval cover tax, title and fees, or only the vehicle?
How the dealer markup works, and the one question that changes the room
Nothing about the buy rate is a scandal. Arranging a loan is real work, and the markup is how the dealer gets paid for it. But it is your money. The CFPB puts it in a sentence worth taping to the dashboard: dealers and lenders are not required to offer the best rates available, and you may save hundreds or thousands of dollars over the life of the loan by getting quotes directly from other lenders, comparing offers, and negotiating for the best interest rate available to you.
Here is the moment it works. You slide a credit union’s written offer across the desk. The finance manager reads it, his keyboard goes quiet for a beat, and then he starts typing again. Sometimes the dealer comes back lower, and that is fine. Take it. You only know it is the better deal because you had a number to beat. The CFPB’s plain-language guide, Take control of your auto loan, is worth printing and folding into your glovebox for exactly this conversation.
And ask the question out loud, even if you do not get a straight answer: what is the buy rate on this approval, and what rate am I being charged? Asking costs nothing. It tells the room you know there are two numbers.
Totally unrelated, but here’s where to eat in Crystal City.
Your credit score moves the rate more than the lender does
If two points between lenders got your attention, the gap between credit tiers is bigger. Experian’s table of average car loan rates by credit score shows a new-car APR of 4.41% for super prime borrowers (781 or above) and 13.52% for subprime borrowers (501 to 600). Put both rates through a calculator on the same car and the gap dwarfs anything between two lenders.
Nobody publishes credit-union-versus-bank rates split by credit score, so read the two sources together. Your credit tier decides which neighborhood your rate lives in. The lender you pick decides which house on the block. Pull your own credit before you shop, so the first person to see your score is you and not a finance manager.
Shop three lenders inside one two-week window
The fear that keeps people from comparing is that every application dings their score. For auto loans, the scoring models expect you to shop. FICO says older versions of its score allow a 14-day span for rate shopping, and newer versions expand the window to 45 days. Experian notes that VantageScore treats multiple auto loan inquiries within a 14-day period as one inquiry.
- Plan for 14 days, not 45. You do not get to choose which scoring model a lender uses, and two weeks is safe under all of them.
- Bunch it up. A credit union quote this week, a bank quote next week, and the dealer pull on Saturday all land inside one window.
- Get every offer in writing, with the APR, the term and the total finance charge in dollars, so the offers line up side by side.
Is it smart to do a 72 month car loan?
It is the most expensive way to make a payment fit. Keep the $35,000 at the 5.44% credit union average and change only the term, stretching it a year longer. The payment drops. The total interest climbs, because you pay the rate for an extra year. Long notes are normal now: the Federal Reserve’s G.19 consumer credit release shows new-car loans at finance companies running 66 to 67 months. Normal is not the same as cheap.
The trap is that the term is the easiest lever anyone has. If the payment comes in $60 over your target, twelve more months fixes it in a keystroke. So every time a new sheet slides across the desk, write down five things: price, trade-in, rate, term and payment. If the only one that moved is the term, nothing got better.
A long term also keeps you underwater longer, and that hurts at trade-in time. The CFPB’s report on negative equity in auto lending describes what happens when the trade-in value offered is less than what you still owe and the unpaid balance is rolled into the new loan: it can place you further underwater on the next one. If you are upside down, GAP coverage is the product the CFPB describes as optional and intended to cover the difference between what you owe and what the insurer pays if the car is stolen or totaled. Price it with your own insurer and your own lender before you buy it in the finance office.
Why credit unions price lower, and the catch
It is built into how they are owned. The NCUA’s consumer site, MyCreditUnion.gov, describes a credit union as a not-for-profit financial institution owned and controlled by its members, with profits returned to members as reduced fees, higher savings rates and lower loan rates. No outside shareholders are waiting for their cut.
The catch is that you have to belong. Members share a common bond, which the NCUA calls the field of membership, and you may qualify through your employer, your family, or where you live, work, worship or go to school. Joining usually means opening a savings account first, so do it a few days before you shop, not at the dealership. The other honest trade-offs: smaller branch networks than the biggest national banks, sometimes a thinner app, and averages that are only averages. One credit union can be above the line. That is why you get two quotes, not one.
What to ask before you sign anything
Take the same list to every lender, so the answers sit next to each other on the kitchen table:
- What is the APR, and what is the total finance charge in dollars over the full term?
- What would the payment and the total interest be one term shorter?
- Can I pay extra toward principal any time without a fee?
- Does this preapproval include tax, title and fees, or only the vehicle price?
- If the dealer arranged this loan, what is the buy rate and what am I being charged?
- Is any balance from my trade-in being rolled into this loan, and exactly how much?
- Which add-ons are on this contract, what does each cost, and which can I remove right now?
- How long is this preapproval good for?
Then compare total cost, not the payment. A payment is a number somebody chose for you. The total is the truth. Insurance is the other half of the monthly bill, and it swings by ZIP code here, so check what car insurance costs in St. Louis before you settle on a payment you can carry. This is general consumer education, not advice for your household; a licensed lender or a nonprofit credit counselor who can see your whole budget is the right person to pressure-test the plan.
Walk in with your own number this time. Browse credit unions across the St. Louis metro on St Louis Near Me Directory, get two written quotes inside the same two weeks, and carry the better one to the lot. For more background, read our roundup of local credit unions in the St. Louis metro.
If you’re the credit union, the independent lot or the auto shop that car buyers should be calling first, a Gold listing puts you in front of the customers already searching for you. See how it works.
Buying used? Read how to find a trustworthy auto repair shop before month four, and see why it’s easier to buy a car than a house, including how that car payment shows up in your debt-to-income ratio later.
Frequently asked questions
Does a credit union have better interest rates than a bank?
On average, yes, on auto loans. The NCUA’s survey for December 26, 2025 showed new-car loans at 5.44% for credit unions and 7.41% for banks on a 60-month term, and used-car loans at 5.53% against 7.73% on a 48-month term. A single credit union can still be above average, so compare written offers.
How much would a $30,000 car loan cost a month?
Put $30,000 into any loan calculator over 60 months at the NCUA’s averages, 5.44% for credit unions and 7.41% for banks, and compare the total interest, not just the payment. Your own rate depends on your credit, the car and the term.
How much is a $40,000 car loan monthly payment 72 months?
The NCUA survey lists new-car rates for 48- and 60-month terms, so plug its 60-month averages, 5.44% and 7.41%, into a loan calculator as a rough guide. Then run the same $40,000 over 60 months. At the same rate, the longer note always costs more in total interest.
Is it smart to do a 72 month car loan?
Only if the lower payment is worth the higher total. At the same rate, stretching from 60 to 72 months lowers the payment and adds a year of interest, and it keeps you owing more than the car is worth for longer.
What is needed to get a car loan from a credit union?
Membership first. Credit union members share a common bond, called the field of membership, and you may qualify through your employer, family, or where you live, work, worship or go to school. After you join, expect to show identification, income and your existing debts, the same as any lender.
What are two disadvantages of a credit union?
You have to qualify and join before you can borrow, which is a step a bank does not ask for. And branch networks are usually smaller than the biggest national banks. A third, quieter one: the lower rate is an average, not a promise, so one credit union may not beat your bank.
What not to say when financing a car?
Don’t open with the monthly payment you want. It invites a longer term instead of a better rate. Negotiate the price first, the financing second, and bring a written preapproval. The CFPB notes that dealers and lenders are not required to offer the best rates available.
What's the smartest way to pay for a car?
Cash, if it leaves your emergency fund standing. If not, the shortest term you can carry, at a rate you shopped yourself before the dealer ran your credit, with tax, title and fees already counted in the budget.
The sheet will still come off the printer warm. The pen will still be sitting there. The only difference is whether the number in your pocket is lower than the one circled in blue.
Written by a dedicated team of St. Louis locals who live, work, and play right here in the St. Louis metro. Founder Lane Forman and team are committed to building the region’s most trusted directory by verifying listings and connecting local businesses with loyal customers across Missouri and Illinois.