For years, Buy Now, Pay Later felt like a financial cheat code: split a $200 purchase into four payments, pay zero interest, and none of it touched your credit report. That last part is ending. FICO began rolling out two new scoring models in late 2025 — FICO Score 10 BNPL and FICO Score 10 T BNPL — that fold Buy Now, Pay Later loans into the score lenders use to approve your mortgage, car loan, and next credit card. The timing matters: roughly half of U.S. adults now use BNPL, and 47% of users say they paid at least one installment late in the past year. The habit millions treated as 'credit-lite' is about to start counting. Here's exactly what's changing and how to stay on the right side of it.
What actually changed at FICO
FICO's flagship models historically ignored BNPL entirely, because providers like Affirm, Klarna, and Afterpay weren't furnishing the data to the credit bureaus. The new FICO Score 10 BNPL and 10 T BNPL models close that gap by accounting for these short-term installment loans the same way they would a small personal loan.
FICO's own testing suggests the effect is modest for most people — on the order of a 10-point swing up or down, similar to opening any new account. But 'modest on average' hides a split: consistent, on-time BNPL payers can build positive history (a real win if your file is thin), while serial late-payers will see those slips reported for the first time. Adoption will be gradual — the 16-year-old FICO Score 8 is still the most widely used model — so this rolls out lender by lender rather than overnight.
Why this lands harder in 2026
BNPL stopped being a niche checkout button. By 2026, about half of U.S. adults have used a BNPL service, U.S. users are projected to near 96 million by year-end, and the average user carries roughly $2,085 in BNPL borrowing.
The worrying part is repayment. LendingTree's tracker found 47% of BNPL users paid late in the past year — up six percentage points from 2025 and 13 points from two years ago. Default charge-offs are still low (around 2%), but late is late, and late is exactly what the new models can now see.
Who wins and who gets hurt
- Thin-file and credit-rebuilders: BNPL on-time history can now add positive data points you couldn't get before — a genuine upside if you've struggled to qualify for traditional credit.
- Stackers: If you juggle four or five overlapping 'Pay in 4' plans, the new models can read that as elevated risk, even when each individual balance is small.
- Late-payers: A missed installment that used to vanish quietly can now show up as a derogatory mark, dragging your score like any other late payment.
- Heavy users near a big application: Opening several BNPL loans right before a mortgage or auto application is the worst-case timing under the new scoring.
Five moves to make now
- Inventory every active plan. List each BNPL balance, the provider, and the next due date in one place so nothing slips through the cracks.
- Automate the installments. Set autopay on every plan — a single missed $50 payment is not worth a reported delinquency.
- Stop stacking before a loan application. In the 3-6 months before a mortgage or car loan, avoid opening new BNPL plans so your file looks clean when it's scored.
- Pull your reports. Check the free weekly reports at the bureaus to see which BNPL accounts are now appearing and confirm they're accurate.
- Treat 'Pay in 4' like real debt. With the average card APR at 19.22%, rolling unpaid BNPL onto a credit card is an expensive mistake — budget the installments as the obligations they are.
The bottom-line math
If a missed BNPL payment shaves even 10-15 points off a 740 score and bumps you from 'very good' to 'good,' the cost isn't abstract. On a $350,000 30-year mortgage, a fractionally higher rate from a lower tier can mean tens of thousands of dollars over the life of the loan. The fix is free: pay on time, and don't open new plans right before you apply for something big.
Buy Now, Pay Later isn't going away — it's growing up. The convenience is real, but the era of treating it as consequence-free spending is over now that those loans can flow into the score that gates your borrowing for years. Use the next few months, while adoption is still gradual, to clean up your plans, automate payments, and avoid stacking before any major application. Want to see what an installment or card balance really costs you over time? Run the numbers with our Credit Card Payoff Calculator before your next 'Pay in 4' tempts you at checkout.
