The short version: You can buy a car with 0% purchase credit cards and pay no interest — but only if the repayment plan is set up before you spend. Split the balance by the number of interest-free months, set that as a fixed direct debit on each card, and only try it once your existing bad debt is cleared. Done right, it costs a small one-off fee instead of hundreds — sometimes thousands — in dealer finance interest. Done without a plan, it’s just a debt with a deadline.
I needed a car. I didn’t want to drain my savings, and I really didn’t want to hand a dealer thousands of pounds in finance interest.
So I bought it on 0% credit cards and paid no interest at all.
That sentence makes some people wince — putting a car on credit cards sounds reckless. Stay with me, because the difference between clever and reckless here is one thing: the plan.
A quick note on where this comes from: I spent years in financial crime and compliance, including a stint at Barclaycard assessing customers’ credit risk. I’ve seen exactly how credit cards make money from people — and how a small number of people quietly make the cards work for them instead. This is the second kind.
Can you actually buy a car with a credit card in the UK?
Partly. Most dealers won’t let you put the whole price on a card, because they pay a fee on card payments. Many cap the card portion at around half, and ask for the rest another way.
That’s the first hurdle, and it’s solvable. But before any of the mechanics, there’s a bigger question: should you be doing this at all? Hold that thought — I’ll come back to it, because it’s the part that matters most.
How I paid for a roughly £12,000 car without paying interest
Here’s what I actually did.
I needed about £12,000. No single card had a limit that big, so the plan was to split it across two 0% purchase cards, both offering 24 months interest-free. On each card I set a fixed direct debit — the balance divided by 24 — so they’d clear themselves automatically before the 0% window closed.
Then real life threw in a snag. The dealer wanted a deposit and would only take about half the price on a card. So I used a money transfer card — a card that moves cash from your credit limit straight into your bank account for a small one-off fee — to cover the rest as cash, and paid the dealer directly.
The entire cost of the exercise was that one-off transfer fee of around 3% on the part I moved as cash. No monthly interest on any of it.
Set against the dealer’s finance offer — roughly £3,300 in interest over four years at a fairly ordinary rate — that fee was a rounding error.
That’s the difference between using credit and being used by it. Same cards. The same scary APR that frightens most people. But because the repayment plan was running before I spent a penny, the headline rate never got the chance to apply.
Why the plan matters more than the card
This is the whole game, so I’ll say it plainly.
A 0% card gives you an interest-free window — 12, 18, 24 months. If the balance is gone before the window shuts, you pay no interest. If it isn’t, the full rate lands on whatever’s left, and it’s usually 20–40%.
So the plan is simple and non-negotiable:
Divide the balance by the number of interest-free months.
Set that exact figure as a direct debit on the card, starting immediately.
Set a phone reminder for one month before the 0% ends, to check nothing’s left.
Do that and the card clears itself. Skip it and you’ve bought a debt with a deadline.
I also built in a safety net by design. Because the fixed payments bring the balance down at least as fast as the car loses value, the car is always worth more than what’s left owing. If life changed tomorrow, I could sell it and clear the balance with room to spare. That’s not luck — it’s engineered in from the start.
Is this actually a good idea for you?
Here’s the honest answer, and it’s the reason this post isn’t a “hack.”
This is a pro move, not a starter move. It only works if two things are already true:
Your bad debt is cleared. If you’re still paying interest on a card, an overdraft or a Klarna balance, this isn’t your move yet — using it now just digs the hole deeper.
Paying a fixed amount on time, every month, is second nature — not a stretch you’re hoping to manage.
If that’s not you yet, that’s completely fine. It was once true of me too. Build the foundation first — clear the bad debt, get a buffer behind you, make on-time payments automatic. The technique will still be here when you’re ready.
- The M&G System: before you put anything on a 0% card
- Clear the bad debt first. No 0% strategy while you’re paying interest elsewhere.
- Set the plan before you spend. Balance ÷ interest-free months = your fixed direct debit.
- Diarise the deadline. A reminder one month before 0% ends, every time.
- Keep a get-out. Only borrow against something you could sell or cover if life changed.
Here’s how the two routes compare on a ~£12,000 car:
| Dealer finance | Two 0% cards, with a plan | |
|---|---|---|
| Interest paid | ~£3,300 over 4 years* | £0 |
| One-off cost | Usually none | ~3% on the cash-transfer portion |
| Who’s in control | The lender’s schedule | Your fixed direct debit |
| Risk if you drift | Baked-in interest either way | Full APR on any leftover balance |
*Illustrative, based on a fairly ordinary finance rate — your quote will vary.
Your next step
If you’re not yet at the “0% cards” stage, the useful move is to see your debts clearly and get a dated plan to clear them. That’s exactly what the free Debt Calculator does — it shows you the fastest, cheapest order to clear what you owe: moneyandgrowth101.com/tools/debt-calculator.
And if you’d like a second pair of eyes on your whole picture, you can book a free, no-pressure Money Clarity Call — a 20-minute chat to get clear on your next step: book here.
Two ways to go further
If you would rather have the whole thing in order instead of one post at a time, that is what the book does.
Money & Growth 101 — the no-fluff UK guide to clearing debt and building real wealth.
Prefer to talk it through first? A Money Clarity Call is 20–30 minutes, free, and there is no pressure either way.
Frequently asked questions
Does buying a car on a credit card hurt your credit score? Not by itself. Using credit and clearing it on time is a positive marker. What hurts your score is missed payments or maxing out your available credit — which is exactly why the fixed-payment plan matters.
Can you put a whole car on a credit card? Usually not. Most dealers cap the card portion (often around half) because they pay card fees, so you’ll typically need a second method for the rest.
What is a money transfer card? A card that moves cash from your credit limit into your bank account for a one-off fee (usually 3–4%), often at 0% for a set period. It’s a tool for planned, disciplined use — not everyday spending.
What happens when the 0% period ends? Any remaining balance starts accruing interest at the card’s standard rate — often 20–40%. That’s why you clear it before the deadline or, at worst, move it to another 0% deal.
Mustafa Alsoodany is the founder of Money & Growth 101. By day he’s worked in financial crime and compliance at banks and fintechs — JPMorgan, Monzo, Starling and Barclaycard among them — and holds the ICA Advanced Certificate in Anti-Money Laundering at Distinction. He started Money & Growth 101 to do the opposite of the day job: make money plain, jargon-free and genuinely doable for people in their 20s and 30s who were never taught it.