Smartphones and credit at 14–16 — what you can and can't have

①The three card types in one paragraph each

Debit card. Linked to your bank account. When you spend, the money comes straight out of your balance. If your balance is £0, the card declines. No debt possible (other than going overdrawn, which most teen accounts don't allow).

Prepaid card. Like a gift card with a Visa or Mastercard logo. You load it with money first, then spend. Not linked to a bank account. Often used by under-18s where the parent loads it. GoHenry, Rooster, Revolut Under 18 are the big UK ones.

Credit card. The bank lends you money up to a limit. You spend, you owe them. You pay it back at month-end (free) or carry the balance (with 20%+ interest). Legal age in the UK: 18+. No way around it.

②What you can have at 14–16

Plenty of options. None of them are credit. All let you shop online, get cash, and use contactless.

If you have a Saturday job, a free debit card on a teen current account beats a paid prepaid card almost every time. Prepaid cards make sense when a parent is funding the spending and wants visibility.

③Why under-18s can't have credit cards

Contract law. To owe money, you have to be legally able to sign a binding contract. Under-18s in England, Wales and NI can sign contracts for "necessaries" (essentials) but not for credit — under the Consumer Credit Act 1974 and case law going back centuries. In Scotland the age of contract is 16, but credit card issuers all set their own minimum at 18.

So even if you find a website that lets you "apply", at the ID-check step it will fail. You can't legally be lent money under 18.

④Buy-now-pay-later (BNPL) — the sneaky one

BNPL services like Klarna, Clearpay, Laybuy and PayPal Pay in 3 let you split a purchase into 3-4 payments, interest-free, automatically charged to a debit card. They're not technically "credit cards" — so they've been growing in the under-18 market through 2023-2025.

Most BNPL services do have an 18+ requirement in their terms. Some don't check rigorously. Some teenagers use a parent's card (with or without permission) or sign up with a slightly altered date of birth.

Rule of thumb: if you can't afford the full price today, you can't afford it on BNPL either. Wait 2 months, save up, then buy.

⑤What "building credit" looks like before 18

Honest answer: you can't. UK credit reference agencies don't open files on under-18s. Anything you do before 18 doesn't appear on your credit report.

The closest you can do legally:

• Build up a year or two of uninterrupted current account activity in your own name. Banks like this when you eventually apply for credit cards or overdrafts.
• On your 18th birthday, register on the electoral roll immediately. That's the single biggest credit-score boost for thin files.
• Apply for a credit-builder card at 18 (Aqua, Capital One, Vanquis). Use it for one tank of petrol or one shop a month, pay in full automatically. 12 months later your file is thick enough for serious lenders.

See the credit score guide for the full 18-year-old plan.

NCNational Curriculum links

• England — PSHE Association KS4 L19 (income, debt, financial products), L20 (financial fraud)
• England — Citizenship KS4 (consumer rights, the law)
• England — Computing KS4 (online identity, data protection)
• Wales — Curriculum for Wales Progression Step 4–5 (HWB AoLE, Science & Technology AoLE)
• Scotland — Curriculum for Excellence HWB 4-21a
• NI — LLW KS4 Personal Finance

Full mapping in the curriculum map.