Buy Now Pay Later: The Hidden Dangers UK Shoppers Need to Know

BNPL splits purchases into 3–4 interest-free instalments, or lets you defer payment for 30 days. Retailers pay the BNPL provider a fee per transaction — which is why you're not charged interest. The business model depends on some users missing payments (and paying late fees) and on driving higher basket sizes for retailers.

Unlike a credit card where all debt is visible in one place, BNPL agreements are scattered across multiple providers and retailers. It's easy to have five active agreements simultaneously and lose track of what's due when. UK debt charities report BNPL debt as one of the fastest-growing categories in 2025–2026 financial difficulty cases.

From 2025–2026, the FCA has been pushing BNPL providers to report to credit reference agencies (Experian, Equifax, TransUnion). Missed BNPL payments are increasingly likely to affect your credit score — which could impact mortgage applications and other credit decisions. What felt invisible on your credit file may soon leave a mark.

Miss a payment and the tone changes fast. Providers charge late fees of £6–£12 per missed instalment, and after multiple misses, accounts are passed to debt collection agencies. Some providers also charge account management fees or subscription costs for premium features.

If you genuinely need to spread costs, a 0% purchase credit card gives you similar benefits with better consumer protections, a single consolidated balance, and Section 75 protection on purchases over £100. The key: pay it off within the 0% period. If you can't afford something, BNPL doesn't change that — it just delays the realisation.