What an auto loan is and how it works

An auto loan is money a lender gives you to buy a car, which you repay in monthly installments over a set period, usually three to seven years. The lender holds the title to the car until you pay off the loan completely — meaning the car serves as collateral. If you stop making payments, the lender can repossess the vehicle.

The cost of borrowing includes interest, which is a percentage of the loan amount the lender charges you for lending the money. A lower interest rate means you pay less total interest over the life of the loan. Your interest rate depends on your credit score, the size of your down payment, the loan term you choose, and the lender's own pricing.

When you make a monthly payment, part of it goes toward interest and part toward the principal (the original amount borrowed). Early in the loan, most of your payment covers interest. As time passes, more of each payment reduces what you actually owe.

Key Takeaways

  • Auto loans let you borrow money to buy a car and repay it monthly, with the car serving as collateral until the loan is paid off.
  • Your interest rate depends on your credit score, down payment size, loan term, and the lender you choose — shopping around can save you hundreds of dollars.
  • You can get an auto loan from a bank, credit union, online lender, or the car dealership itself, and each has different approval timelines and terms.
  • A larger down payment reduces the amount you borrow, lowers your monthly payment, and typically gets you a better interest rate.
  • The loan term (how many months you have to repay) affects your monthly payment and total interest paid — longer terms mean lower monthly payments but more interest overall.

Where to get an auto loan

You have four main sources for auto loans: banks, credit unions, online lenders, and dealerships. Each has different approval processes and terms.

Banks are traditional lenders that require a credit check and proof of income. They typically have stricter credit score requirements than other sources, but offer competitive rates if your credit is good. Approval usually takes a few days to a week.

Credit unions are member-owned organizations that often offer lower interest rates than banks, especially if you have been a member for a while. They may be more flexible with credit scores than banks. You must be a member to borrow, though some credit unions allow you to join if you live or work in their service area.

Online lenders approve loans quickly — sometimes within hours — and may work with lower credit scores. They typically charge higher interest rates to offset the risk. Read the terms carefully, as some online lenders have stricter repayment rules or hidden fees.

Dealership financing is convenient because you arrange the loan at the same place you buy the car. However, dealership rates are often higher than what you could get elsewhere. The dealership may also sell your loan to another lender after the sale, changing who you send payments to.

How your credit score affects your loan

Your credit score is a three-digit number that lenders use to decide whether to lend you money and what interest rate to charge. Scores range from 300 to 850. A higher score signals that you have paid past debts on time and owe less money relative to your credit limits.

Lenders use credit scores to sort borrowers into risk categories. Someone with a score of 750 or higher typically gets the lowest interest rates. Someone with a score between 650 and 700 pays more interest. Someone below 600 may be turned down by banks and credit unions but might still borrow from online lenders or dealerships at a much higher rate.

You can check your credit score for free through AnnualCreditReport.com, which is the only federally authorized site for free annual credit reports. Many credit card companies and banks also show your score free of charge in your online account. Knowing your score before you shop for a loan helps you understand what rate to expect and whether to improve your score before explore.

Down payment, loan term, and monthly payment

Three decisions shape what you will pay each month: how much money you put down upfront, how long you take to repay the loan, and the interest rate you receive.

A down payment is money you pay toward the car's price before borrowing. A larger down payment reduces the amount you need to borrow, which lowers your monthly payment and the total interest you pay. It also improves your chances of getting a better interest rate. Most lenders want a down payment of at least 10 to 20 percent of the car's price, though some accept less.

The loan term is how many months you have to repay the loan. Common terms are 36, 48, 60, and 72 months. A shorter term (like 36 months) means higher monthly payments but less total interest paid. A longer term (like 72 months) means lower monthly payments but significantly more interest paid overall. For example, a $20,000 loan at 6 percent interest costs about $2,150 in interest over 48 months but about $4,300 over 72 months.

Use an auto loan calculator to see how different down payments and loan terms change your monthly payment. Most lenders and financial websites offer free calculators where you enter the loan amount, interest rate, and term to see the monthly cost.

What happens during the approval process

When you explore for an auto loan, the lender pulls your credit report, verifies your income, and checks your employment history. This process is called a hard inquiry and temporarily lowers your credit score by a few points. Multiple hard inquiries in a short time (like shopping with several lenders in one week) count as a single inquiry for credit scoring purposes, so you can shop around without major damage.

The lender will ask for proof of income, such as recent pay stubs or tax returns, and may ask for proof of residence, like a utility bill. If you are self-employed, expect to provide two years of tax returns. Have these documents ready before you explore to speed up the process.

Once approved, the lender issues a check or transfers funds to the dealership or seller. You then sign the loan agreement, which lists the loan amount, interest rate, monthly payment, and term. Read this document carefully — it is a binding contract. The lender will also require proof of car insurance before releasing the funds, since the car is collateral.

Costs beyond the monthly payment

Your monthly payment covers interest and principal, but owning a financed car involves other costs. Car insurance is required by law in every state and by every lender. The cost varies by your age, driving history, location, and the type of coverage you choose. Full coverage (collision and comprehensive) is more expensive than liability-only but protects the lender's collateral.

Registration and title fees vary by state but typically range from $100 to $300 per year. Some states charge more for newer or more expensive vehicles. The lender may require you to pay these upfront or may roll them into the loan.

Maintenance and repairs are your responsibility once you own the car. Newer cars under warranty have fewer unexpected repair costs, but older used cars may need significant work. Budget for oil changes, tire replacements, and potential repairs.

Gap insurance is optional but worth considering if you put down less than 20 percent. If the car is totaled in an accident, gap insurance covers the difference between what you owe on the loan and what the insurance company pays. Without it, you could owe money on a car you no longer own.

Paying off your loan early and refinancing

If you receive a bonus, inheritance, or other lump sum of money, you can pay extra toward your loan principal to reduce the total interest and shorten the loan term. Most lenders allow this without penalty, but confirm there is no prepayment penalty before you sign the loan agreement.

Refinancing means taking out a new loan to pay off the old one, usually to get a lower interest rate or change the loan term. You might refinance if your credit score improves, interest rates drop, or your financial situation changes. Refinancing involves a new credit check and process, so it is worth doing only if the new rate is significantly lower than your current rate.

Some people refinance to extend the loan term and lower their monthly payment when money is tight. This reduces your when ready burden but increases the total interest you pay, so consider it carefully.

Frequently Asked Questions

What is the difference between a new car loan and a used car loan?

Used car loans typically have higher interest rates because used cars are riskier collateral — they depreciate faster and may have hidden mechanical problems. Loan terms for used cars are often shorter, usually 36 to 60 months instead of up to 72 months for new cars. Down payment requirements are also usually higher for used cars.

Can I get an auto loan with bad credit?

Yes, but you will pay a higher interest rate. Online lenders and some dealerships work with credit scores below 600, though rates may be 10 to 15 percent or higher. A larger down payment and a co-signer with better credit can improve your rate. Consider waiting a few months to improve your credit score if possible, since even a small increase can save you hundreds in interest.

What happens if I miss a payment?

Missing one payment typically triggers a late fee and a note on your credit report. Missing multiple payments gives the lender grounds to repossess the car. If repossession happens, you still owe the remaining loan balance even after the car is sold, plus repossession and auction fees. Contact your lender when ready if you cannot make a payment — many offer hardship programs or temporary payment deferrals.

Should I buy the extended warranty the dealership offers?

Extended warranties are optional and often expensive. New cars come with a manufacturer's warranty that covers major repairs for three to five years. If you plan to keep the car beyond the warranty period or buy a used car with limited warranty coverage, an extended warranty may be worth considering. Compare the cost against the likelihood of major repairs and your ability to pay for them out of pocket.

What is APR and how is it different from interest rate?

APR (annual percentage rate) includes the interest rate plus other costs of borrowing, such as origination fees. It gives you a more complete picture of what the loan actually costs. When comparing loans, use the APR rather than the interest rate alone, since two loans with the same interest rate may have different APRs depending on fees.