Interest Rate vs APR: The Basic Definitions
When you shop for a car loan, you'll see two important percentage figures: the interest rate and the APR. The interest rate is the cost you pay each year to borrow money, expressed as a percentage. It reflects only the interest you owe on the principal balance and does not include any fees.
The APR, or Annual Percentage Rate, is a broader measure. It includes not only the interest rate but also certain fees you must pay to obtain the loan. Expressed as a percentage, the APR represents the total yearly cost of the loan, including the interest and these additional charges.
The federal Truth in Lending Act (TILA) requires lenders to disclose the APR to you before you become legally obligated on the loan. This means you have the right to see the APR and the interest rate before you sign, making it easier to compare offers side by side.
Sources: Consumer Financial Protection Bureau
What Fees Are Included in APR?
Not every fee is included in the APR. In general, lenders must include fees that are required to get the loan and that are paid at or before closing. Common examples are origination charges and other fees charged when the loan is made. However, the exact list of included fees can vary by lender and by state.
Because fee structures differ, two loans with the same interest rate can have different APRs if one charges higher origination fees. That's why APR is a better tool for comparing the true cost of car loans from different lenders.
- Common fees that may be included: origination fees and other fees charged when the loan is made.
- Fees may vary by lender and location; always ask for a complete list of fees before you sign.
How APR Affects Your Monthly Payment
The APR itself is not used directly to calculate your monthly payment—that's done using the nominal interest rate. However, the APR gives you a more accurate picture of the total cost of financing the vehicle because it includes the fees spread over the life of the loan.
Sources: JPMorgan Chase, Santander Consumer USA
APR Calculation Example
That means you are effectively paying more than the nominal rate suggests, because the fee is spread across the loan term.
If the loan had no fees, the APR would equal the interest rate, because there are no additional costs to spread over the term. This example shows why APR is a more accurate measure of the loan's true cost.
Sources: RateGenius, JPMorgan Chase
Fixed vs Variable APR
Auto loans typically come with a fixed APR, meaning the rate stays the same for the entire loan term. This makes your monthly payments predictable and allows you to budget confidently.
Variable-rate car loans exist but are less common. With a variable APR, the rate can change over time, which means your payments may go up or down depending on market conditions. For most car buyers, a fixed APR is the standard and often the safer choice, but it's important to understand what type you're getting before you sign.
Why APR Is the Best Way to Compare Car Loans
When comparing loan offers, always compare APRs to APRs, not interest rates to APRs. Because APR includes fees, it gives you a more accurate picture of the total cost of financing. Two loans may have the same interest rate, but the one with higher fees will have a higher APR, making it more expensive.
The CFPB recommends using APR as the primary comparison tool. By doing so, you can see the true cost of each loan and avoid surprises from hidden fees.
Sources: Consumer Financial Protection Bureau, RateGenius, JPMorgan Chase
Common Mistakes When Comparing APR
One common mistake is comparing the interest rate of one loan to the APR of another. This can lead you to choose a loan that seems cheaper but actually has higher total costs.
Another mistake is ignoring the APR entirely and focusing only on the monthly payment. A lower monthly payment might come with a longer term or higher fees, making the total cost higher than a loan with a slightly higher payment but lower APR.
Finally, don't assume that APR is always higher than the interest rate. In rare cases, a lender may offer a special incentive or rebate that makes the APR lower than the nominal rate. Always check the APR to see the true picture.
Comparing New and Used Car Loan APRs
APR levels for car loans can vary depending on whether you're buying a new or used vehicle. According to Experian data from Q4 2024, the average APR for new car loans was 6.35%, while the average for used car loans was 11.62%. These figures are indicative and can change over time.
Keep in mind that these numbers are historical and not current. For the most up-to-date rates, check with lenders or financial data sources. The key takeaway is that new car loans generally carry lower APRs than used car loans, but your individual rate will depend on your credit profile, the lender, and market conditions.
- New car loans often have lower APRs than used car loans.
- Your specific APR depends on your credit score, loan term, and lender.
| Loan Type | Average APR |
|---|---|
| New car | 6.35% |
| Used car | 11.62% |
Sources: Certified AutoBrokers Inc.
Frequently asked questions
Is APR always higher than the interest rate?
No, not always. APR is usually higher because it includes fees, but in rare cases incentives or rebates can make it lower. Always check the APR to understand the true cost.
Sources: RateGenius, State FarmDoes APR include all car loan fees?
No, not necessarily. APR typically includes fees that are required to get the loan and that are paid at or before closing, such as origination fees. However, the exact list of included fees can vary by lender and state, so not all fees may be reflected in the APR. Always ask the lender for a detailed list of fees.
Sources: Consumer Financial Protection Bureau, RateGeniusCan APR change after you sign the contract?
For a fixed-rate car loan, the APR does not change after you sign. However, if you have a variable-rate loan, the APR can change over time based on market conditions. Most auto loans have fixed APRs, but always check your loan agreement to confirm the type of rate you have.
Sources: Consumer Financial Protection Bureau, State FarmHow can I get a lower APR on my car loan?
To get a lower APR, focus on improving your credit score before applying, as lenders base rates on creditworthiness. Additionally, shop around and compare APRs from multiple lenders, including banks, credit unions, and online lenders.
Sources: RateGenius, JPMorgan ChaseWhat is a good APR for a used car loan?
A good APR for a used car loan depends on your credit profile and current market conditions. Based on Q4 2024 data, the average APR for used car loans was 11.62%, so anything below that could be considered good for a borrower with similar credit. However, rates change frequently, so check current data from lenders or financial sources.
Sources: Certified AutoBrokers Inc.Sources
- What is the difference between a loan interest rate and the APR? — Consumer Financial Protection Bureau
- Auto loans key terms — Consumer Financial Protection Bureau
- Understanding Interest Rates vs. APR for Car Loans — RateGenius
- APR vs. Interest Rate On Car Loans — JPMorgan Chase
- What Are Car Loan Interest Rates? A Guide to Today's APRs — Certified AutoBrokers Inc.
- APR vs. interest rate on your car loan — State Farm
- Understanding APR vs. interest rate for auto loans — Santander Consumer USA