Unit Economics

Buy-now-pay-later Fees

Work out what those "pay in 4" buttons really cost you, and whether the bigger basket is worth the bigger fee.

  • Beginner
  • 6 min total
  • 11 chapters

What decision this helps you make: Whether to offer buy-now-pay-later, and how to judge if it actually adds profit or just cost.

What this topic is

Buy now, pay later (BNPL) lets customers split a purchase into installments while you're paid upfront. In exchange, you pay a higher fee than a card, commonly 2–8%, because the provider takes the credit risk and (claims to) bring more and bigger sales.

Why it matters

BNPL is a bigger, more visible bite out of every sale than a card. It pays off only if the real lift in conversion and basket size beats the extra fee, and the "lift" numbers you're sold are the provider's, not yours.

Who should learn it

Any merchant offered a BNPL button, especially online and higher-ticket sellers weighing whether the conversion boost justifies the fee.

What you will understand

  • See how much more BNPL costs than a card
  • Work out the basket lift needed to justify the fee
  • Judge provider "conversion" claims with healthy skepticism
  • Decide where BNPL genuinely pays off

Prerequisites

Common misconception

"BNPL is free money. The provider pays me upfront and takes the risk." You pay for that, heavily: BNPL fees run 2–3× a card's. It only adds profit if the extra sales and bigger baskets truly outweigh the extra fee.