The whole story, as text
What is the difference between interest rate and APR on a personal loan?
Interest rate: 12%. APR: higher. The interest rate is what the lender charges on the balance. The APR also brings certain fees into the rate, so loans with different fees can be compared on one number. This loan has a 5% fee, deducted, over 36 months. What is its APR?
The answer
15.6%. A 14% loan with no fee has an APR of 14%. With no fee, the rate and the APR match.
Why
A fee is money you pay to get the loan. Deducted or added, the loan costs more than its rate says. $526 fee, $2,060 interest. The APR puts the fee and the interest on the same footing, as a yearly rate on the cash you actually received. The lower rate costs more: 12% with the fee: $2,586. 14% with no fee: $2,304. Difference: $283.
One move
Use APR as the starting point when comparing loans with the same amount and term. 12% + 5% fee: 15.61% APR, $2,586 cost of borrowing. 14%, no fee: 14% APR, $2,304 cost of borrowing. The APR is telling the truth the rate leaves out. Our APR is an estimate from the terms shown, using a regular-period cash-flow calculation. The lender's disclosure is the authoritative figure.
Lenders must disclose the APR under the Truth in Lending Act. If an offer shows only a rate, ask for the APR before you compare.
Yours
Which offer really costs less? runs these numbers for any loan. Nothing you enter leaves your browser.
The longer read
Two numbers appear on almost every loan offer, and they are often different. The interest rate is the yearly rate charged on what you owe. The APR, or annual percentage rate, is the yearly cost of the loan including its fees, expressed as if it were all interest. When a loan has no fees, the two are the same. When it has fees, the APR is higher, and it is the one that lets you compare offers fairly.
Why they differ
A fee is money you pay to get the loan. If it is deducted from what you receive, you get less cash for the same payments. If it is added to the balance, you pay interest on it. Either way the loan costs more than its rate suggests. The APR restates that extra cost as a rate, so a 12% loan with a 5% fee and a 14% loan with no fee can be compared on one number.
A worked example
Two offers for $10,000.00 in hand over 36 months:
| Line | Interest rate | Fee | Estimated APR | Total cost of borrowing |
|---|---|---|---|---|
| Offer A | 12% | 5% deducted | 15.61% | $2,586.48 |
| Offer B | 14% | none | 14.00% | $2,303.95 |
Offer A has the lower rate and the higher APR, and it costs $282.53 more. The APR is telling the truth the rate leaves out.
Two things to know about APR
- It assumes you keep the loan to the end. The fee is spread over the full term. Pay off early and the fee’s real cost is higher than the APR implies, because the fee is not refunded.
- The APR on your disclosure is the legal figure. Our tools show an estimated APR from the cash you receive and the payments you make. It is for comparison; the lender’s disclosed APR is the one that counts.
On a credit card
Card statements usually print only an APR, and often several: one for purchases, one for cash advances, one for balance transfers. There is no separate fee to fold in, so the purchase APR is the rate charged on purchases. Interest is worked out daily on cards, so a month’s interest is slightly different from a twelfth of the APR.
Questions to ask your lender
- What is the APR including all fees, and which fees are included?
- Is the fee deducted from what I receive or added to my balance?
- If I pay off early, is any part of the fee refunded?
See it with your own numbers
Which offer really costs less? shows the interest rate, the estimated APR and the total cost for each offer side by side.
Related: Glossary: APR, interest rate, origination fee. Equal-cash comparison and estimated APR.
Educational tool, not advice. Your lender’s disclosures are the authoritative figures.
Written and reviewed by Riverbend Crossroads Digital LLC, Sunday, September 6, 2026. Figures from the Show Real Cost engine, computed exactly and shown to the cent. Educational, not advice; your lender's disclosures are the authoritative figures. How we calculate · Corrections.