From the original research pack. This draft has not received a complete claim-by-claim review. Fees, product terms, statistics and legal status may have changed. Its preparation date is not a publication date. Use the linked original sources.

Editor note (remove before publishing): Previously tagged items resolved 2026-09-17 by hedging (BNPL bureau-reporting changes after March 2025 and FICO 10 BNPL adoption could not be confirmed). Still confirm New York DFS rule status after the Sept. 14, 2026 comment deadline.

Last updated September 17, 2026.

"Pay in 4, interest-free" sounds like free money, and for many shoppers who pay on time, it roughly is. But buy now, pay later (BNPL) has grown into a much bigger and more varied credit market than the checkout button suggests, with late fees, APRs of up to 36% on longer plans, spotty credit reporting, and rules that differ sharply between the U.S. and the UK. Here is what it really costs and what changed in 2026.

Key takeaways

  • BNPL is bigger than "Pay in 4": six major providers originated close to $160 billion in 2025, and only about half was Pay in 4, according to a June 2026 Federal Reserve analysis [1].
  • Pay in 4 is usually 0% interest, but late fees apply at some providers (for example, up to $7 at Klarna and up to $8 at Afterpay per missed payment in the U.S., capped at 25% of the order) [2][3]. Longer monthly plans can carry APRs up to 36% [3][4].
  • About 16% of U.S. adults used BNPL in the prior year, and roughly a quarter of users paid late, per the Fed's 2026 household survey [5].
  • Credit reporting is still inconsistent. FICO released BNPL-aware score models in 2025, but not every provider reports and lenders choose which scores to use [6][7].
  • There is no dedicated federal BNPL rule in the U.S. after the CFPB withdrew its 2024 interpretive rule in May 2025 [8]. New York is writing its own rules, and the UK began regulating BNPL on July 15, 2026 [9][10].

What "buy now, pay later" actually means

Buy now, pay later is a form of point-of-sale credit: you get the item now and repay the lender (not the store) over time. The Federal Reserve's June 2026 overview sorts it into three product types [1]:

Product Typical structure Interest
Pay in 4 Purchase split into up to four payments over about eight weeks Usually 0%
Short-term installment loan Maturities of up to 30 days (for example, "pay in 30 days") Usually 0%
Longer-term installment loan Monthly payments beyond 30 days, sometimes up to five years May carry an APR

Source: Federal Reserve FEDS Notes, June 5, 2026 [1].

That distinction matters because the marketing often blurs it. The same app might offer a free Pay in 4 on a $120 jacket and a 24-month plan with interest on a $1,500 laptop.

How big BNPL has become

According to the Fed's analysis of public disclosures from six major providers [1]:

  • They originated close to $160 billion in consumer credit in 2025.
  • Pay in 4 made up about half ($78.3 billion); the rest was short- and longer-term installment loans.
  • More than 60% of total issuance carried a 0% APR.
  • Afterpay (Block) and Affirm accounted for about 60% of issuance; PayPal and Klarna together about 32%.

A Richmond Fed brief from February 2026, using a narrower measure, estimated BNPL transaction value at about $70 billion in 2025, or about 1.1% of total credit card spending, growing roughly 20% a year in real terms since 2021 [11]. The numbers differ because the studies measure different products, so treat any single "size of the market" figure with care.

The true cost: when "free" stops being free

Pay in 4: free if nothing goes wrong

If you make every payment on time, Pay in 4 typically costs nothing beyond the purchase price. Merchants pay the provider a fee for the sale, which is how the provider earns money on 0% loans. Related field note

Costs appear when payments are missed. As of September 2026, published U.S. terms state:

Provider Pay in 4 late fee (U.S.) Longer plans
Klarna Up to $7.00 per late payment; total late fees never exceed 25% of the order [2] Separate financing products; terms vary
Afterpay Up to $8 per missed installment; total capped at 25% of order value [3] "Pay Monthly" on orders over $100, 3–24 months; example APR shown up to 36% [3]
Affirm Advertises "no late fees" [4] 0–36% APR based on credit; Pay in 4 is 0% APR [4]

Fees and terms change and may vary by state and merchant. Check the agreement shown at checkout.

Example: a $100 order split into four $25 payments. If you miss two payments at a provider charging a $7 late fee, you'd pay $14 in fees, a 14% add-on to the purchase. The 25% cap means late fees on that order could not exceed $25 [2].

Explore the fee worksheet

Monthly plans: compare the APR like any loan

Longer BNPL plans work like a traditional installment loan. At 36% APR, interest adds up fast. Compare the APR with a credit card, a credit union loan, or simply saving up.

Indirect costs

  • Overdraft and returned-payment fees from your bank if an autopay hits an empty account.
  • Loan stacking. A CFPB study of 2022 data found about 63% of BNPL borrowers held more than one BNPL loan at the same time during the year, and 33% borrowed from multiple lenders [12]. Several small payments can be harder to track than one card bill.
  • Returns and disputes. Returning an item doesn't always pause your payment schedule immediately, and dispute rights vary by provider and jurisdiction.

Who uses BNPL and how it's going

The Federal Reserve's Economic Well-Being of U.S. Households in 2025 report (released May 2026) found [5]:

  • 16% of adults used BNPL in the prior 12 months, up from 15% a year earlier.
  • About one in four users paid late, and most of those were charged a fee.
  • Top reasons: spreading out payments (31%) and it being the only way to afford the purchase (29%).
  • About one in five users used BNPL for groceries or food delivery, and 45% of them said it was the only way they could afford it.

A separate CFPB study of 2022 credit-record data found that nearly two-thirds of BNPL loans went to borrowers with subprime or deep subprime credit scores [12]. On the other hand, the Richmond Fed notes BNPL charge-off rates (the share of loans written off) were 1.83% in 2023 per CFPB data, lower than the 4.19% credit card charge-off rate at banks in Q4 2023 [11].

The picture, in short: most BNPL loans get repaid, but a meaningful minority of users rely on it for essentials and pay late.

Does buy now, pay later affect your credit score?

It depends on the provider, the product, and the score a lender uses.

Applying. Many Pay in 4 checkouts use a soft credit check, which doesn't affect your score. Klarna, for example, says its Pay in 4 uses a soft check [2]. Longer financing may involve different checks; read the disclosure.

Reporting. As of March 2025, Affirm said it would report all of its pay-over-time loans, including Pay in 4, to Experian starting April 1, 2025; Sezzle offered opt-in reporting; and Klarna did not report to U.S. bureaus [7]. Reporting practices can change, so check your provider's current policy. Missed payments sent to collections can show up regardless.

Scoring. In June 2025, FICO announced FICO Score 10 BNPL and FICO Score 10 T BNPL, designed to aggregate multiple BNPL loans so frequent short loans aren't misread, and said they were expected to be available to lenders in fall 2025 [6]. Availability doesn't mean adoption: lenders decide which score models to use, and many mortgage and card lenders still use older FICO versions. We did not find public data on how widely lenders had adopted these scores as of September 2026.

What to do: check your free credit reports at AnnualCreditReport.com to see whether BNPL accounts appear, and dispute errors with the bureau. Related field note

The rules in 2026

United States: federal pullback, state action

  • CFPB. In 2024 the CFPB issued an interpretive rule treating BNPL lenders like credit card issuers for certain dispute and refund protections under the Truth in Lending Act. On May 12, 2025, the bureau withdrew that rule along with other guidance documents [8]. There is currently no BNPL-specific federal rule.
  • New York. New York passed a BNPL licensing law in its FY2026 budget (2025). On February 23, 2026, the Department of Financial Services (DFS) released a pre-proposed regulation covering licensing, limits on late and other fees, credit-reporting disclosures, and dispute resolution [9]. A formal proposed version was published in mid-July 2026 with comments due September 14, 2026, per a law-firm analysis; it would limit interest-bearing BNPL loans to New York's civil usury cap [13]. It is not final. The law takes effect only once the rule is adopted, and DFS said the regulation would take effect 180 days after adoption [9].
  • Other states apply existing lending or licensing laws to some BNPL providers; rules vary.

United Kingdom: now regulated

BNPL-style "deferred payment credit" used to be exempt from UK consumer credit rules. The Financial Conduct Authority (FCA) published final rules in Policy Statement PS26/1 on February 11, 2026, and began regulating the product on July 15, 2026 [10][14]. The rules aim to ensure lenders assess affordability, give clear information on risks and rights, and support borrowers in financial difficulty [14]. Firms that registered for a temporary permissions regime can keep lending while their applications are assessed [10].

U.S. (federal) New York UK
Dedicated BNPL rules None (2024 rule withdrawn May 2025) [8] Proposed; not final as of Sept. 2026 [13] In force since July 15, 2026 [10]
Affordability checks required No BNPL-specific rule Proposed underwriting standards [9] Yes [14]
Late-fee limits Provider policy only Proposed limits [9] Addressed through FCA rules [14]

How to use BNPL without paying extra

  1. Know which product you're choosing: Pay in 4 or an interest-bearing plan?
  2. Read the late-fee and APR terms before confirming.
  3. Track every plan in one place; stacking is where people slip.
  4. Use a funding source that won't overdraft.
  5. Ask whether it will be reported to credit bureaus.
  6. Ask yourself if you'd buy it with cash. If BNPL is the only way to afford essentials, that's a signal to look at your budget or local assistance options.

FAQ

Is buy now, pay later really interest-free? Pay in 4 plans usually are. Longer monthly plans can carry APRs up to 36% at major providers [3][4]. Late fees may apply even on 0% plans [2][3].

Will BNPL hurt my credit score? It can if a provider reports missed payments or sends debt to collections. Some providers report on-time payments too [7]. The effect depends on which score model a lender uses [6].

Can I dispute a BNPL purchase like a credit card charge? Not with the same federal protections in the U.S., since the CFPB withdrew its 2024 interpretive rule [8]. Providers have their own dispute processes. If you paid installments with a credit card, card dispute rights may apply to those payments.

Is BNPL regulated in the UK now? Yes. The FCA began regulating deferred payment credit on July 15, 2026 [10].

What happens if I miss a BNPL payment? You may be charged a late fee, lose access to future plans, and eventually face collections and credit reporting. Contact the provider early to ask about hardship options.

Sources

  1. Board of Governors of the Federal Reserve System, Acree, Barnes, Bruce, and Hannon, "'Buy Now, Pay Later' Beyond 'Pay in 4', A Comprehensive Product Overview," FEDS Notes, https://www.federalreserve.gov/econres/notes/feds-notes/buy-now-pay-later-beyond-pay-in-4-a-comprehensive-product-overview-20260605.html, June 5, 2026, accessed 2026-09-17.
  2. Klarna, "Pay in 4 payments, interest-free," https://www.klarna.com/us/pay-in-4/, accessed 2026-09-17. (Provider source.)
  3. Afterpay, "Is there a cost to using Afterpay?," https://www.afterpay.com/en-US/help/900005359783-Is-there-a-cost-to-using-Afterpay, accessed 2026-09-17. (Provider source.)
  4. Affirm, "How it works," https://www.affirm.com/how-it-works, accessed 2026-09-17. (Provider source.)
  5. Board of Governors of the Federal Reserve System, "Economic Well-Being of U.S. Households in 2025: Credit," https://www.federalreserve.gov/publications/2026-economic-well-being-of-us-households-in-2025-credit.htm, May 2026, accessed 2026-09-17.
  6. FICO, "FICO Unveils Groundbreaking Credit Scores That Incorporate Buy Now, Pay Later Data," https://investors.fico.com/news-releases/news-release-details/fico-unveils-groundbreaking-credit-scores-incorporate-buy-now, June 23, 2025, accessed 2026-09-17. (Company source.)
  7. Payments Dive, "Affirm, other BNPL players ratchet up credit bureau reporting," https://www.paymentsdive.com/news/affirm-other-bnpl-players-ratchet-up-credit-bureau-reporting/743287/, March 24, 2025, accessed 2026-09-17.
  8. Consumer Financial Protection Bureau, "Buy Now, Pay Later (BNPL) products" (compliance resources, noting May 12, 2025 withdrawal of the 2024 BNPL Interpretive Rule), https://www.consumerfinance.gov/compliance/compliance-resources/consumer-cards-resources/buy-now-pay-later-bnpl-products/, accessed 2026-09-17; see also Federal Register, "Interpretive Rules, Policy Statements, and Advisory Opinions; Withdrawal," https://www.federalregister.gov/documents/2025/05/12/2025-08286/interpretive-rules-policy-statements-and-advisory-opinions-withdrawal, May 12, 2025.
  9. New York State Department of Financial Services, "Governor Hochul Announces New Nation-Leading Regulation to Establish Comprehensive Consumer Protections for Buy Now, Pay Later Loans," https://www.dfs.ny.gov/reports_and_publications/press_releases/pr20260223, Feb. 23, 2026, accessed 2026-09-17.
  10. Financial Conduct Authority, "Regulating Buy Now Pay Later (BNPL)," https://www.fca.org.uk/firms/regulating-buy-now-pay-later, accessed 2026-09-17.
  11. Federal Reserve Bank of Richmond, Zhu Wang, "Buy Now, Pay Later: Recent Developments and Implications," Economic Brief No. 26-05, https://www.richmondfed.org/publications/research/economic_brief/2026/eb_26-05, February 2026, accessed 2026-09-17.
  12. Consumer Financial Protection Bureau, "CFPB Research Reveals Heavy Buy Now, Pay Later Use Among Borrowers with High Credit Balances and Multiple Pay-in-Four Loans," https://www.consumerfinance.gov/archive/newsroom/cfpb-research-reveals-heavy-buy-now-pay-later-use-among-borrowers-with-high-credit-balances-and-multiple-pay-in-four-loans/, Jan. 13, 2025, accessed 2026-09-17.
  13. Hudson Cook, "New York Advances Buy-Now-Pay Later Regulation With Some Significant Changes," https://www.hudsoncook.com/article/new-york-advances-buy-now-pay-later-regulation-with-some-significant-changes/, July 31, 2026, accessed 2026-09-17. (Law-firm analysis.)
  14. Financial Conduct Authority, "PS26/1: Regulation of Deferred Payment Credit (unregulated Buy Now Pay Later)," https://www.fca.org.uk/publications/policy-statements/ps26-1-regulation-deferred-payment-credit, Feb. 11, 2026, accessed 2026-09-17.

Disclaimer: This article is for educational purposes only and is not financial, legal, or tax advice. BNPL fees, APRs, credit-reporting practices, and regulations change and can vary by state, merchant, and your credit profile. Read your loan agreement and check current terms with the provider.

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