Credit Cards
Credit Card vs Debit Card UK — What's the Difference?
The key differences between credit cards and debit cards. When to use each, purchase protection, fraud protection, and which is right for you.
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4 min read
Credit cards and debit cards look similar but work very differently. Understanding when to use each can save you money and protect your purchases.
Key Differences
| Feature |
Credit Card |
Debit Card |
| Whose money |
Bank’s (borrowed) |
Yours |
| When you pay |
Later (statement) |
Immediately |
| Interest charged? |
Yes, if not paid in full |
No |
| Credit limit |
Yes |
Limited by your balance |
| Builds credit |
Yes |
Usually no |
| Section 75 protection |
Yes (£100-£30,000) |
No |
| Chargeback |
Yes |
Yes (but weaker) |
How Each Works
Debit Card
| Aspect |
How It Works |
| Spending |
Money leaves your account immediately (or within hours) |
| Overdraft |
May go overdrawn if you spend more than you have |
| Interest |
No interest (but overdraft fees if applicable) |
| Account type |
Linked to current account |
Credit Card
| Aspect |
How It Works |
| Spending |
Borrowed from card issuer up to credit limit |
| Statement |
Monthly bill shows what you owe |
| Payment |
Pay by due date; full balance = no interest |
| Interest |
Charged if you don’t pay in full (~20-30% APR) |
Purchase Protection Comparison
Section 75 (Credit Cards Only)
| Feature |
Detail |
| What it covers |
Purchases £100–£30,000 |
| Who’s liable |
Card issuer equally liable with seller |
| What’s protected |
Faulty goods, non-delivery, company goes bust |
| Cost |
Free — it’s the law |
| Example |
Book £2,000 holiday, company fails = claim full amount from card issuer |
Chargeback (Both Cards)
| Feature |
Debit Card |
Credit Card |
| Available |
Yes |
Yes |
| Legal right? |
No — card scheme rules |
No — card scheme rules |
| Time limit |
Usually 120 days |
Usually 120 days |
| What’s covered |
Non-delivery, faulty goods |
Non-delivery, faulty goods |
| Strength |
Weaker |
Stronger (plus Section 75 backup) |
Key point: For purchases £100+, credit cards give you both Section 75 AND chargeback. Debit cards only give chargeback.
When to Use Each
Use a Credit Card For
| Situation |
Why |
| Online shopping |
Better fraud protection, Section 75 |
| Purchases over £100 |
Section 75 protection |
| Travel bookings |
Protection if company fails |
| Car hire deposits |
Often required; protects your current account |
| Foreign spending |
Travel credit cards have no fees |
| Large purchases |
Protection + potential rewards |
| Building credit |
Regular use + repayment improves score |
Use a Debit Card For
| Situation |
Why |
| ATM withdrawals |
Credit card cash withdrawals are expensive |
| Small everyday purchases |
If you’re tempted to overspend |
| When you need to avoid debt |
Can’t spend more than you have |
| Direct debits/standing orders |
Usually must be from bank account |
| If you won’t pay credit card in full |
Avoid interest charges |
Fraud Protection Comparison
| Scenario |
Debit Card |
Credit Card |
| Fraudulent transaction |
Your money is gone until resolved |
Bank’s money at risk, not yours |
| Resolution time |
Can take days/weeks to get money back |
Usually immediate credit while investigating |
| Liability |
Usually £0 if you report promptly |
Usually £0 if you report promptly |
| Impact on you |
May not have funds for bills |
Your account unaffected |
Example: Fraudster spends £1,000
- Debit: Your account is £1,000 down while bank investigates (days/weeks)
- Credit: Card issuer’s money at risk; your bank account untouched
Foreign Spending
| Card Type |
Typical Fees |
| Standard debit card |
2.75-3% foreign transaction fee |
| Standard credit card |
2.75-3% foreign transaction fee |
| Travel credit card |
0% foreign transaction fee |
| Travel debit card (Starling, Monzo, etc.) |
0% foreign transaction fee |
For travel, choose a fee-free card — see our travel credit cards guide.
Credit Score Impact
| Action |
Credit Card |
Debit Card |
| Regular use |
Builds credit history |
Usually no impact |
| On-time payments |
Improves score |
No impact |
| Missed payment |
Damages score |
No impact (unless overdraft) |
| Application |
Hard search (temporary dip) |
No search |
If you want to build credit, you need a credit card (or loan). Debit cards generally don’t appear on credit reports.
Which Should You Choose?
Get a Credit Card If
| Situation |
Reason |
| You can pay the balance in full each month |
Free borrowing + protection + rewards |
| You make large purchases |
Section 75 protection |
| You want to build credit |
Only way to build credit card history |
| You shop online frequently |
Better fraud protection |
| You travel abroad |
Fee-free travel cards available |
Stick to Debit If
| Situation |
Reason |
| You might not pay in full |
Avoid 20-30% interest |
| You struggle with overspending |
Can’t spend more than you have |
| You have poor credit |
May not be able to get a credit card yet |
| You only need basic transactions |
Simpler |
Best of Both Worlds
Many people use both:
- Credit card for large/online purchases, travel, protected spending
- Debit card for ATM withdrawals, everyday small purchases, as backup
Common Myths
| Myth |
Reality |
| “Credit cards are dangerous” |
Only if misused — paid in full, they’re beneficial |
| “Debit cards are safer” |
Actually less protected than credit cards |
| “I don’t need a credit card” |
You may be missing out on protection and credit building |
| “Credit cards are only for people with savings” |
Credit builders exist for those starting out |
Summary
| For This |
Use This |
| Purchases over £100 |
Credit card |
| Online shopping |
Credit card |
| Travel and hotels |
Credit card |
| ATM cash |
Debit card |
| Avoiding debt risk |
Debit card |
| Building credit |
Credit card |
For more on choosing a credit card, see our how credit cards work guide and credit card eligibility guide.