APR and interest rate: what’s the difference?

Resources · Cards, loans and credit · 5 min read Building

Key points

• The interest rate is the yearly price of borrowing the money itself.
• The APR (annual percentage rate) tries to add certain fees into one yearly figure.
• On a loan with upfront fees, the APR is usually higher than the interest rate.
• On credit cards in some countries, the APR and the purchase interest rate are the same number.

APR vs interest rate? The difference comes down to fees. The interest rate is what you’re charged for borrowing the money. The APR adds in some of the costs of setting up the credit, so it gives you a fuller picture of what it costs each year.

If the two numbers match, no extra fees are counted in the APR. If the APR is higher, fees are making the credit cost more than the headline rate suggests. Simple as that. For how rates turn into monthly charges in the first place, see how interest works on debt.

What the interest rate tells you

The interest rate is what’s used to work out your interest charge each month. Say a loan or card has a 10% rate. The monthly rate is 10% ÷ 12, and that gets applied to whatever you still owe.

What it leaves out is everything else: set-up or establishment fees, monthly or annual account fees, and any other charges that come attached to the credit. That’s why two loans with the same interest rate can end up costing you quite different amounts.

What APR adds

APR stands for annual percentage rate. It takes the interest plus certain fees and rolls them into a single yearly percentage.

Which fees get counted depends on where you live and what kind of credit it is. Some countries call this all-in figure something else, such as a “representative” rate in the UK. Same idea, though. One number that lets you compare offers on a more even footing.

APR vs interest rate on a loan: a worked example

Here’s one personal loan, with and without a set-up fee. The maths works the same in any currency.

These assumptions apply to all three versions:

• Amount you need: $10,000
• Interest rate: 10% a year, fixed (monthly rate = 10% ÷ 12)
• Term: 36 monthly payments
• Interest charged on the balance each month before the payment
• The last payment is whatever clears the balance

Look at the interest rate. It’s 10% in every row. The APR moves because the fee changes what the loan really costs you.

Take the fee paid at the start. You still repay the full $10,000 plus interest, but you also handed over $400 on day one. That’s like borrowing only $9,600 for the same payments, and it pushes the APR up to about 12.83%.

Now the fee added to the loan. Here you borrow $10,400, so you pay interest on the fee too. Total repaid is $12,080.83. Measured against the $10,000 you actually needed, the APR comes out at about 12.72%.

Notice something odd? The fee-added version has a slightly lower APR but costs a little more overall, because the fee is spread across the whole term. So don’t stop at the APR. Look at the total repaid as well.

Credit cards: often the same number

In the US and Canada, a card’s APR is usually just its purchase interest rate, and annual fees are listed separately. In some countries, such as the UK, the APR shown for a card can also allow for compounding and any annual fee, so it may sit above the purchase rate.

Cards also tend to carry more than one APR. There’s one for purchases and a higher one for cash withdrawals. Balance transfers get their own, and sometimes there’s a promotional rate for a set period. Your statement or account terms will list each one.

The rate behind the rate

There’s one more number you should know about. Interest is charged monthly, so any interest you don’t pay can start attracting interest of its own. Leave a balance untouched for a year and a 24% APR works out to about 26.82% in actual yearly cost.

This is sometimes called the effective annual rate. Its main use is showing you why carrying a balance costs more than the headline figure lets on.

Using both numbers

Neither number tells the whole story on its own. Some people compare APRs first to shorten their list. Others skip straight to the total repaid for their own amount and term, because an APR is often based on a standard example that may look nothing like theirs. Our guide to comparing the total cost of credit goes deeper.

And keep in mind what an APR may leave out. Late payment and early repayment fees often aren’t in it. Neither are costs that depend on how you use the account, or the effect of choosing a longer or shorter term.

Common questions

Is APR the same as interest rate?

Not always. They match when there are no extra fees counted in. When there are, the APR is higher.

Which is more important, APR or interest rate?

That depends on what you’re comparing. APR helps when you’re comparing offers with different fees. The interest rate tells you what each month’s interest charge will be.

Why is my APR higher than my interest rate?

Usually because set-up or other fees are built into the APR. The bigger those fees are compared with what you borrowed, the wider the gap.

Try it

Plug your own amount, rate and term into the loan repayment calculator to see the payment and total interest. Want to see all your debts together? Find your Freedom Date.

General information only, not financial advice. Your situation is your own.

Sources

• Consumer credit financial promotions: FCA CP26/15 (Bratby Law), 7 June 2026, updated 25 October 2026