Buy-now-pay-later plans that split a purchase into four interest-free payments spent years invisible to the credit system, appearing on no report and in no score. That is changing. The largest lenders have begun sending those installment loans to the credit bureaus, and FICO has built new scoring models that fold the data in, which means a habit millions treat as a casual checkout option can now lift or lower the three-digit number that governs borrowing. For retirees who lean on these plans to smooth a fixed-income budget, the shift cuts both ways.
How ‘phantom debt’ started landing on credit files
For most of the product’s rise, the debt was a blind spot. Providers rarely reported the short-term loans, so a shopper could carry several open plans at once without any of them surfacing on a credit report, a gap lenders came to call phantom debt. That began to close when Affirm started reporting its pay-over-time loans to Experian on April 1, 2025, and extended the same reporting to TransUnion weeks later, the first time a major provider’s installment activity flowed into the files that lenders pull.
The reporting is not yet universal. Affirm sends data to Experian and TransUnion but not Equifax, and other buy-now-pay-later companies sit at different stages of the same transition, so a given plan may or may not appear depending on the lender and the bureau. What has changed decisively is the direction. The industry is moving from near-total invisibility toward routine reporting, and the balances, payment history, and terms of these loans are increasingly part of the permanent record.
That matters because the plans are genuine credit. Each pay-in-four arrangement is a loan with a balance and a due date, and once it is reported, missing a payment carries the same weight as a late card or car payment. The convenience that made the product feel consequence-free, with no interest, no paperwork, and instant approval at checkout, masked the fact that it was debt all along, and the reporting shift finally puts that reality on the books where lenders can see it.
Free retirement updates: A quiet rule change can shrink your Social Security or Medicare check, and no one warns you. The free Retirement Shield newsletter catches these early and tells you what to do. Get it free.
What the new FICO models actually do with the data
The scoring side moved next. FICO announced two new models on June 23, 2025, FICO Score 10 BNPL and FICO Score 10 T BNPL, the first from a major provider to factor buy-now-pay-later loans into the score itself. The models began rolling out that fall, and FICO’s own testing suggested most consumers who use the plans would see their score move by roughly 10 points in either direction, comparable to the effect of opening a new account.
Direction depends on behavior. A shopper who takes on installment plans and pays each one on time can build a thicker, more current record, which may help someone with a thin credit file, a category that includes many older adults who paid off their cards and mortgages long ago. Miss the payments, and the same reporting that could have helped instead drags the score down, because the delinquency now shows up in a place a lender is looking.
Adoption is the catch. Lenders do not switch scoring models overnight, and FICO Score 8, released in 2009, remains the most widely used version, so a bank pulling an older model may not yet weigh buy-now-pay-later data even when it sits on the report. The practical effect is uneven for now: the loans are increasingly visible on the file, but whether they move the particular score a given lender sees depends on which model that lender runs.
Why the shift matters for retirees on fixed incomes
Older borrowers use these plans more than the stereotype suggests, often to spread the cost of a large purchase across a month without touching savings. Now that the activity can affect a score, the stakes rise for anyone who expects to borrow again. A mortgage refinance, a car loan, or even a rental application all lean on the same score, which shapes the rates and terms on offer, so a run of well-managed plans could help while a cluster of missed ones could quietly raise the cost of the next loan.
There is a subtler risk in stacking. Because approvals are instant and each plan feels small, it is easy to run several at once, and a file suddenly showing multiple open installment loans can read as strain to a lender even when every payment is current. For a retiree managing a tight monthly budget, the discipline that matters is not avoiding the plans entirely but keeping the number of them low enough that the report tells a story of control rather than juggling.
The larger point is that a tool marketed as frictionless has quietly acquired consequences. What was once an off-the-books convenience is becoming a reported form of credit that behaves like any other, rewarding steady payment and punishing missed ones. How fast lenders adopt the models that read it remains unsettled, but for now the safest assumption is that a buy-now-pay-later plan is no longer invisible, and it deserves the same care as any loan that lands on a credit report.
This article was produced with AI assistance and reviewed against primary sources by The Money Overview editorial team.
More Financial Reading
