The three main sources for auto loans, and how they differ
You can get an auto loan from a bank, a credit union, a captive lender (the financing arm of a car manufacturer), or an online lender. Each charges different interest rates, moves at different speeds, and has different requirements. The "best" place depends on your credit score, how much time you have, and whether you already have a relationship with a lender.
Banks are the most common source and usually offer competitive rates if your credit is good. Credit unions typically charge less than banks but require membership. Captive lenders (Ford Credit, Toyota Financial Services, GM Financial) often have promotional rates but only for their own vehicles. Online lenders move fastest and will work with lower credit scores, but their interest rates are usually higher.
Most people shop multiple sources before buying a car, because the interest rate difference between a 5% loan and a 7% loan costs thousands of dollars over five years. You do not have to accept the dealer's financing — you can bring your own loan to the dealership and use it to pay cash.
Key Takeaways
- Banks offer competitive rates for borrowers with good credit, but require a full process and typically take three to five business days to approve.
- Credit unions usually charge lower rates than banks, but you must be a member and membership often requires living or working in a specific area.
- Captive lenders (manufacturer financing) frequently offer promotional rates, but only on their own brand of vehicles and usually only for new cars.
- Online lenders approve faster than traditional banks and work with lower credit scores, but charge higher interest rates to offset the risk.
- Getting pre-approved before you shop for a car lets you know your actual budget and gives you negotiating power at the dealership.
Banks: the standard option for established credit
Most banks offer auto loans to customers with a credit score of 620 or higher, though rates improve significantly at 700 and above. You can get a loan from your current bank or shop other banks in your area. The process is straightforward: you fill out an process (online or in person), provide proof of income and employment, and wait for approval.
Banks typically take three to five business days to approve and fund a loan. Some offer faster decisions if you explore online and have all documents ready. Interest rates vary by bank and by your credit profile — the same person might get 5.5% at one bank and 6.2% at another, so calling three or four banks to compare is worth your time.
The main drawback is that banks require you to have already chosen a car (or at least know the price and vehicle details) before they will approve the loan. Some banks will pre-approve you for a maximum amount without a specific vehicle, but the final rate depends on the car you actually buy.
Credit unions: lower rates if you can join
Credit unions are member-owned cooperatives that typically charge one to two percentage points less than banks for auto loans. A credit union member with a 700 credit score might get 4.5%, while a bank customer with the same score pays 5.8%. The catch is that you must be a member to borrow, and membership rules vary.
Some credit unions are open to anyone who lives or works in a specific county or region. Others require you to work for a particular employer, belong to a professional association, or have a family member who is already a member. You can search for credit unions you may be able to join at CO-OP.org or CUServiceCenters.org, which list branches and membership requirements.
If you are already a member of a credit union, checking their auto loan rates takes one phone call. If you are not a member, joining typically takes 10 to 15 minutes and costs nothing or a small one-time fee (usually $5 to $25). Credit unions move at similar speeds to banks — three to five business days for approval — and many offer pre-approval before you choose a vehicle.
Captive lenders: manufacturer financing with promotional rates
Captive lenders are financing companies owned by car manufacturers: Ford Credit, Toyota Financial Services, GM Financial, Honda Financial Services, and others. They offer loans only for their own brand of vehicles. The advantage is promotional rates — manufacturers frequently offer 0% or 1.9% financing on new cars to boost sales, especially on models that are not selling quickly.
These promotional rates are real and sometimes genuinely cheaper than any bank or credit union can offer. The catch is that they usually explore only to new vehicles, only to borrowers with good credit (typically 700 or higher), and only during the promotional period. Once the promotion ends, the rate goes back to market rates.
You can learn about current promotions by visiting the manufacturer's website or asking the dealership. Captive lenders approve quickly — often while you are at the dealership — because they have access to the vehicle's details and your credit report when ready. However, you cannot shop captive lenders the way you shop banks; you can only use the captive lender for that specific brand.
Online lenders: fastest approval, higher rates
Online lenders like LendingClub, Upstart, and Lightstream approve auto loans in hours rather than days and will work with credit scores as low as 580. They move fast because they rely on automated decisions and do not require in-person meetings. Many let you check your rate without a hard credit inquiry, so you can compare offers from multiple lenders without damaging your credit score.
The trade-off is interest rates. An online lender might charge 8% to 12% for a borrower with a 650 credit score, while a bank would charge 6% to 8% for the same person. Over a five-year loan, that difference adds up to hundreds or thousands of dollars. Online lenders are most useful if you have lower credit or need money urgently, not if you have time to shop traditional lenders.
Online lenders also typically require you to have already chosen a vehicle or at least know the price and year/make/model. Some will fund the loan directly to the dealership; others send the money to you and you pay the dealer. Read the terms carefully to understand how the money reaches the seller.
Dealer financing: what the dealership offers you
When you buy a car at a dealership, the dealer will offer you financing. This is not the dealer's own money — dealers work with multiple lenders (banks, credit unions, captive lenders) and present you with the best offer they can get. The dealer makes money by marking up the interest rate slightly, so the rate you see is usually a bit higher than what the lender would have offered you directly.
Dealer financing is convenient because everything happens in one place, but it is rarely the cheapest option. The dealer's job is to close the sale, not to find you the lowest rate. If you bring your own pre-approved loan from a bank or credit union, you can tell the dealer "I have financing at 5.2%; can you beat that?" This forces the dealer to shop harder on your behalf, and sometimes they can.
One important note: if you finance through the dealer and later decide you want to refinance with a different lender, you can do that after 60 to 90 days. Some borrowers use dealer financing to drive the car home, then refinance at a better rate once they have confirmed the car is reliable.
How to compare and choose the right lender
Start by checking your credit score. You can get a free score from Credit Karma, AnnualCreditReport.com, or your bank's website. This tells you what interest rate range to expect and which lenders will even consider your process. If your score is below 620, online lenders are your most realistic option.
Next, decide whether you want to get pre-approved before shopping for a car or wait until you have chosen a vehicle. Pre-approval takes a few days but shows you your actual budget and gives you negotiating power at the dealership. It also locks in an interest rate for 30 to 60 days, so you know exactly what you will pay.
Then contact three to five lenders and ask for a rate quote. Most will give you a preliminary rate based on your credit score without a hard inquiry. Compare the interest rate, the loan term (36, 48, 60, or 72 months), and any fees. A loan with a lower rate but a longer term might cost more overall, so calculate the total interest you will pay, not just the monthly payment.
Once you have chosen a lender and been approved, you can use that loan at any dealership. You are not locked into buying from a specific dealer or manufacturer. The lender will send the money directly to the dealer when you sign the paperwork.
Frequently Asked Questions
Does it hurt my credit to get pre-approved from multiple lenders?
Multiple hard inquiries in a short time (usually two weeks) count as a single inquiry for credit scoring purposes, so shopping around does not significantly damage your score. However, each inquiry does lower your score slightly — usually by five to ten points. The benefit of finding a better rate outweighs this temporary dip.
Can I use a loan from one lender at a different dealership?
Yes. Once you have a loan offer from a bank, credit union, or online lender, you can use it to buy a car from any dealership. The lender sends the money to the dealer, and you own the car. You are not required to use the dealer's financing.
What if I get approved by my bank but the dealer offers a lower rate?
Take the dealer's offer if it is lower. However, read the terms carefully — sometimes a lower rate comes with a shorter loan term (higher monthly payment) or additional fees. Compare the total cost, not just the interest rate. If the dealer's offer is genuinely better, use it.
How long does pre-approval last?
Pre-approval typically lasts 30 to 60 days, depending on the lender. After that, you may need to reapply or the rate may change. Check with your lender about their specific timeline so you know when to shop for a car.
Can I refinance my auto loan after I buy the car?
Yes. After 60 to 90 days of making payments, you can refinance with a different lender if interest rates have dropped or your credit score has improved. Refinancing means taking out a new loan to pay off the old one. You keep the same car, but your monthly payment and interest rate change. Refinancing costs money in fees, so only do it if the savings are significant.