Store cards

Store cards: the shop's favourite trap

Q: Are store cards worth it?

Only in one narrow case: you would have bought the item anyway, you clear the balance in full immediately, and you are not protecting your credit file for a bigger application. Outside that case, the discount is usually smaller than the interest.

Q: Do store cards build credit score?

They can, if used lightly and paid in full every month. But the application is a hard search, and a missed payment marks your file for years.

Q: Can I get a store card at 18?

Often yes. Store cards are frequently easier to get than ordinary credit cards because the high APR covers the lender's risk on new borrowers. Being accepted is not the same as it being a good idea.

Q: What happens if I miss a store card payment?

Typically a late fee, around £12 on the Argos card, plus continuing interest and a missed payment marker on your credit file that other lenders can see for years.

You are at the till with £200 of clothes. The assistant smiles: "Would you like to save 10% today? It only takes two minutes." There is a queue behind you. A screen is already waiting for your details. You have about eight seconds to make a decision about credit. That is not an accident.

The short answer

A store card is a real credit card that mostly works at one shop's brands, usually run by a finance company standing behind the shop. The discount is genuine. So is the price: store card APRs typically run 30% to 40%, right at the expensive end of everyday borrowing. Saying yes at the till opens a real credit account.

What you are actually being offered

The shop is not lending you anything. Behind almost every store card is a specialist lender you have never heard of. The Argos card, for example, is issued by a company called NewDay, at a representative APR of 34.9%. Miss a payment and there is a £12 late fee on top, plus a mark on your credit file. Different shops, different lenders, same shape.

So the two minute till offer is really this: open a credit account with a finance company, at around 30% to 40% APR, in exchange for £20 off today. Put like that, it deserves more than eight seconds.

Why the shop wants this so badly

Nobody trains till staff to offer you something for your benefit. The card ties you to the shop, hands over your spending data, earns the shop a commission, and earns the lender interest whenever you do what most people eventually do: carry a balance. The 10% off is not generosity. It is the cost of acquiring you, and they expect it back with interest. Literally.

The £20 gift that costs £63

Run the till offer to the end. £200 of clothes, 10% off, so you pay £180 on the new card and save £20. Nice.

Now suppose, like many people, you do not clear it at once, and pay £10 a month at 34.9% APR. The £180 takes about 24 months to clear and costs about £63 in interest.

Our own working, assumptions in the receipts box. The discount is real. So is the meter.

And notice the honest flip side, because we do not do pantomime villains here: pay the £180 off in full the first month and you really do keep the £20. The card is only a trap for people who carry the balance. The entire business is built on knowing how many people will.

Trap ahead: the till itself

Look at the design of the moment. A queue behind you for time pressure. A friendly face for social pressure. A discount that dies "today" for urgency. A decision about a 34.9% credit agreement, compressed into the worst possible thirty seconds for thinking.

You are allowed to say "no thanks" with no reason. You are also allowed to say "maybe next time": these offers run constantly, and the discount will usually exist again whenever you are ready to decide slowly.

What it does to your credit file

Saying yes triggers a real credit application: a hard search lands on your file for other lenders to see, and a brand new account drops the average age of your credit history. A cluster of applications in a short time reads as risk.

Used with discipline, the same card can quietly help: an account kept open, used a little and always paid in full builds payment history. The card is not good or evil. It is a power tool, and power tools reward people who read how the machine works before switching it on. Which is exactly what the person at the till is hoping you will not do.

The moves

Screenshot this bit

Never decide credit at a till. Any credit decision worth making survives a night's sleep. If the deal cannot wait a day, the deal was the bait.
Do the two number check. The discount in pounds, against the APR. £20 off at 34.9% is only a win if you clear the balance immediately, so be honest about whether you will.
Already carrying a store card balance? No shame, it was built to catch you. Check the APR on your statement, pay more than the minimum, and put every spare pound at this debt first. It is almost certainly your most expensive one.
If you keep the card, give it one job. Discount days only, paid in full the same week, standing order for the minimum as a safety net so a £12 late fee never touches you.
Guard your file. Every till yes is a hard search. If a mortgage or a phone contract is coming up, keep your file quiet.

Check it yourself

A real store card, priced. Finder UK: Argos card review. 34.9% representative APR, variable, issued by NewDay, £12 late payment fee.
The comparison point. Average UK credit card APR: about 36.8% in May 2026, with mainstream cards commonly 24.9% to 39.9%.
Our working. £180 at 34.9% APR, monthly compounding, £10 monthly payments, no new spending: about 24 months and £63 interest. Reproduce it in any spreadsheet.
Why the rate can be that high in the first place. Our page on how banks create money: the money lent to you is created by the lending.

Questions people ask

Are store cards worth it?

Only in one narrow case: you would have bought the thing anyway, you clear the balance in full immediately, and you are not protecting your credit file for a bigger application. Outside that case, the discount is usually smaller than the interest. The maths above is the whole answer.

What is a typical store card APR?

Commonly 30% to 40%. The Argos card is 34.9% representative. For context, the average UK credit card is now about 36.8%, so store cards sit squarely in the expensive mainstream, and far above the rates that strong credit histories are offered. Either way, it is dear money for everyday shopping.

Do store cards build credit score?

They can. A store card account, used lightly and paid in full every month, adds payment history like any credit card. But the application itself is a hard search, and a missed £12 payment marks your file. It builds credit the way a treadmill builds fitness: only if used exactly as intended.

Can I get a store card at 18?

Often yes, and that is worth pausing on. Store cards are frequently easier to get than ordinary credit cards precisely because the rate is high enough to cover the risk of new borrowers. Being accepted is not the same as it being a good idea.

What happens if I miss a store card payment?

Typically a late fee, around £12 on the Argos card, plus interest continuing, plus a missed payment marker on your credit file that other lenders can see for years. A standing order for at least the minimum makes this whole question disappear.