Yes. It means roughly £399 a year per £1,000 owed, above the UK average card rate of about 36.8%. It is also currently a normal rate for store cards and many overdrafts.

APR

What is APR? The number that decides everything

Q: What is the difference between APR and interest rate?

The interest rate is just the interest. APR is interest plus compulsory fees, worked out over a year in a standard way, so it is the number to compare between deals.

Q: What does representative APR mean?

At least 51% of people accepted for the product must get the advertised rate or lower. Up to 49% can be offered a higher rate, and young borrowers with thin credit files often are.

Q: What APR will I get at 18?

Usually a higher one, because your credit file is thin. First cards commonly run 30% to 40% APR. It is how lenders price not knowing you yet, not a punishment.

Every advert for a loan, a credit card or a phone on finance carries one number, usually in the smallest writing on the page. That number decides how much the whole thing really costs you. It is called the APR, and once you can read it, you can never be fooled by "just £25 a month" again.

The short answer

APR stands for annual percentage rate. It is the yearly cost of borrowing, interest plus compulsory fees, squeezed into one percentage so deals can be compared. Roughly, £1,000 owed at 34.9% APR costs about £349 a year just to keep owing. The average UK credit card now sits around 36.8%.

What the number actually means

Borrowed money is rented money. APR is the yearly rent, as a percentage of what you owe. It includes the interest and any fees you cannot avoid, which is exactly why it exists: every lender must show it, calculated the same way, so a 24.9% deal can be compared with a 39.9% one at a glance.

Two rough rules make it real. Rule one: the APR is about what each £1,000 of debt costs you per year. 24.9% APR means roughly £249 a year per £1,000 owed. Rule two: you pay it for as long as the debt exists. Two years owing £1,000 at 34.9% is not £349. It is closer to £700, because the interest keeps landing on whatever is left, including earlier interest. That snowballing is called compounding, and it is the whole game.

The word "representative" is doing heavy lifting

The advertised rate is usually the representative APR. Under UK advertising rules, only at least 51% of the people accepted have to get that rate or better. The other 49% can be quietly offered something higher, and if you are young with a thin credit history, you are very likely in the 49%. The advert said 24.9%. Your letter says 34.9%. Both are legal. Always check the rate you were actually given, not the one on the poster.

Watch one number ruin a minimum payment

Here is the sum that should be taught in every school. You owe £1,000 on a card at 34.9% APR, a completely normal store card rate. You decide to pay £25 a month, which feels responsible.

At that rate, the first month's interest is about £25.26.

Read that again. The interest alone is more than your payment. You pay £25, the debt grows anyway. You could pay £25 a month until the sun burns out and still owe more than you started with.

Our own working, assuming monthly compounding and no new spending. Full assumptions in the receipts box.

Now the fix, and it is smaller than you would guess. Raise the payment to £40 a month and the same debt dies in 40 months, costing £1,601 in total. Still £601 of interest, but it ends. On borrowed money, the difference between drowning and finishing is often £15 a month. This is why minimum payments are set so low: they are not there to help you finish.

Where APRs actually sit right now

Rates in Britain have been climbing for years. The average credit card APR was about 36.8% in May 2026, close to the highest on record. Ordinary cards commonly run 24.9% to 39.9%. Store cards cluster at the expensive end: the Argos card, for example, is 34.9% representative. And overdrafts at big banks are often around 39.9%, which surprises almost everyone.

One more connection, because you have earned it if you read how banks create money: the money a bank lends you is created when it lends it. The APR is the price of a number a bank typed. Knowing that does not change the contract you sign. It should change how carefully you sign it.

Trap ahead

"0% APR" deals are real, and they are also a clock. The rate is 0% until a date, and on that date whatever is left starts costing the full rate, often 25% to 35%. The business model is people who forget the date. Put it in your phone calendar the day you sign, with a reminder a month early.

The moves

Screenshot this bit

Find the APR before you feel anything. Excited is how they want you deciding. The real question is never "can I afford £25 a month?" It is "what rate, for how long, costing what in total?"
Use the rent rule. APR ÷ 100 × what you owe = the rough yearly cost of standing still. £2,000 at 39.9% is about £800 a year just to stay in the same place.
Check your real rate, not the advert. Representative means at least 51% of accepted people get it. As a young borrower, assume you may be quoted higher, and ask.
Beat the minimum, always. Even a little over the minimum shortens the debt dramatically. The minimum is designed for the debt to survive, not for you to finish.
On a 0% deal, own the end date. Calendar it. The deal is only free for people who leave on time.

Check it yourself

The average card rate. Finder UK: average credit card APR, 36.81% in May 2026. Moneyfacts has tracked the same climb to record highs.
The 51% rule. Representative vs guaranteed APR: at least 51% of successful applicants must get the advertised rate or lower. MoneyHelper, the government backed money guidance service, covers the same ground.
A real store card rate. Argos card review: 34.9% representative APR, issued by NewDay.
Our working. Monthly rate = 1.349^(1/12) − 1 ≈ 2.526%. On £1,000 that is £25.26 in month one, so £25 payments never clear it. At £40 a month: 40 months, £1,601 total. Assumes no new spending and no fees. Any spreadsheet will reproduce it.

Questions people ask

Is 39.9% APR high?

Yes. It means roughly £399 a year per £1,000 owed. It is above the UK average card rate of about 36.8%, and well above the rates offered to people with strong credit histories. It is also, right now, a completely normal rate for store cards and overdrafts, which tells you something about those products.

What is the difference between APR and interest rate?

The interest rate is just the interest. APR is the interest plus the compulsory fees, worked out over a year in a standard way. APR is the one to compare, because it is the one lenders cannot dress up.

What does representative APR mean?

It means at least 51% of the people accepted for the product must get the advertised rate or lower. Up to 49% can be offered a higher rate. Young borrowers with short credit histories are often in that 49%, so always check the rate in your own offer.

Do I pay APR if I pay in full every month?

On most credit and store cards, no. Pay the full statement balance by the due date and purchases usually cost no interest. The APR only bites on what you carry past the due date. This is the single most useful habit in this whole subject.

What APR will I get at 18?

Usually a higher one. At 18 your credit file is thin, so lenders quote cautious rates: first cards commonly run 30% to 40% APR. That is not a punishment for anything you did. It is how the system prices not knowing you yet.