Buy Now Pay Later UK: The Hidden Debt Trap

Buy Now Pay Later (BNPL) splits a purchase into 3 or 4 interest-free instalments, but the design encourages 30-50% more spending than paying upfront.

BNPL late fees, account stacking, and price illusion combine to create real financial harm even at 0% headline interest.

From 2026, the FCA regulates BNPL as consumer credit - missed payments now affect your credit score and lenders must check affordability.

If you have BNPL balances, treat them as debt with the avalanche or snowball method, and stop using BNPL for any non-essential purchase while you clear them.