Quick answer
Buy now, pay later (BNPL) is a short loan offered at checkout. A typical plan splits a purchase into four equal payments, the first at checkout and the rest every two weeks, usually with no interest[1]. The shop pays the lender a fee, and missing payments can bring late fees.
Key points
- BNPL is credit: a lender pays the shop now and you repay the lender in instalments.
- The classic 'pay in 4' plan splits a purchase into four payments over about six weeks, normally at 0% interest.
- Merchants pay BNPL providers higher fees than card fees, which is how interest-free plans are funded.
- In a 2025 US survey, 16% of adults had used BNPL in the past year and slightly more than a quarter of users paid late at least once.
- Rules differ by country: the UK started regulating interest-free BNPL on 15 July 2026, while the US CFPB withdrew its 2024 BNPL interpretive rule in May 2025.
On this page
#What is buy now, pay later in simple terms?
Buy now, pay later (BNPL) lets you take your shopping today and pay for it in a few smaller pieces later. Behind the friendly button there is a lender: a company that pays the shop for you and then collects your instalments. The US Consumer Financial Protection Bureau (CFPB), a government regulator, describes BNPL as a form of credit that lets a consumer split a retail purchase into smaller, interest-free instalments[1]. Because it is credit, the same questions apply as with any loan: who is lending, what does it cost, and what happens if you cannot pay? Our short glossary entry on BNPL gives the one-paragraph version.
The best-known product is called pay in 4. In the CFPB's description, a purchase of roughly $50 to $1,000 is divided into four equal instalments: the first is paid at checkout as a down payment, and the other three are due every two weeks, so the whole loan is repaid over about six weeks[1]. Many providers also sell longer loans that are repaid monthly and may charge interest, which we cover below.
#What happens when you click 'pay later' at checkout?
The process takes seconds, but several things happen in the background. The provider checks who you are and decides whether to lend. A Federal Reserve research note published in June 2026 says most BNPL plans require a credit assessment, commonly through a soft credit inquiry, which is a check that other lenders do not see[2]. If you are approved, the provider takes your first payment, pays the shop the purchase price minus its fee, and then collects your remaining payments at two-week intervals[2].
The money path in a pay-in-4 purchase
- You — choose BNPL at checkout
- BNPL provider — quick check, approves
- Merchant — paid price minus fee
- Instalments — you repay every 2 weeks
A pay-in-4 loan, step by step
Checkout
You pick BNPL, give basic details and usually link a debit or credit card for repayments.
Decision
The provider runs its own checks, often a soft credit inquiry, and approves or declines in seconds.
First payment
The first quarter of the price is taken immediately; the shop ships your order.
Repayments
Three more payments are collected two, four and six weeks later, often automatically from your linked card.
Problems
If a payment fails, the provider may charge a late fee, pause your account or, in some countries, report it to a credit bureau.
#Who pays for an interest-free BNPL loan?
If you pay on time, a pay-in-4 plan usually costs you nothing extra. The money mainly comes from the shop. The Federal Reserve note found that merchant fees charged by BNPL providers are higher, at 5% to 8%, than the 2% to 3% charged by credit card providers[2]. Shops accept that higher cost because BNPL can help them sell more, especially on larger baskets. The second source of revenue is fees paid by customers who pay late. To understand the card fees that BNPL is being compared with, see how card payments work.
| Product | How you repay | Interest | Typical use |
|---|---|---|---|
| Pay in 4 | Four payments, the first at checkout, then every two weeks[1] | Usually 0% | Clothes, small electronics |
| Short-term instalment (up to 30 days) | One payment or a few within a month[2] | Often 0% | Pay after delivery |
| Longer-term instalment loan | Monthly payments over months or years[2] | 0% or interest-bearing | Furniture, travel, larger items |
The Federal Reserve note estimates that pay-in-4 plans were about half of the roughly $160 billion of BNPL credit originated in the US in 2025; the rest were other short- and longer-term instalment loans.
#How big has BNPL become?
BNPL grew very quickly. In a study of five large US lenders, the CFPB counted 180 million BNPL loans worth $24.2 billion in 2021, up from 16.8 million loans worth $2 billion in 2019[1]. For 2025, Federal Reserve researchers estimated that BNPL providers originated close to $160 billion of consumer credit in the US[2]. The Fed's annual household survey found that 16% of adults had used BNPL in the previous 12 months, compared with 10% in 2021, when the survey first asked the question[3].
#What happens if you miss a BNPL payment?
Missing a payment is where an interest-free plan can stop being free. The CFPB found that 10.5% of borrowers at the five lenders it studied were charged at least one late fee in 2021, up from 7.8% in 2020[1]. In the Federal Reserve's survey about 2025, slightly more than one in four BNPL users said they had been late with a payment[3]. Depending on the provider and the country, a missed payment can also stop you using the service and may appear on your credit file, which can affect your credit score.
Worked example
Worked example: three plans running at once
Imagine three pay-in-4 purchases: $200 on day 0, $120 on day 7 and $360 on day 10. Each is split into four equal payments every 14 days. The figures below were computed with code.
- Plan A: $200 ÷ 4
- $50 on days 0, 14, 28 and 42
- Plan B: $120 ÷ 4
- $30 on days 7, 21, 35 and 49
- Plan C: $360 ÷ 4
- $90 on days 10, 24, 38 and 52
- Due in the first two weeks (days 0 to 13)
- $170
- Due in the next two weeks (days 14 to 27)
- $170
- Total repaid over about seven and a half weeks
- $680, the same as the three prices if every payment is on time
#How is BNPL regulated in the US, UK and EU?
United States. In May 2024 the CFPB issued an interpretive rule meant to ensure that BNPL users could dispute charges and obtain refunds, as credit card users can[5]. On 12 May 2025 the CFPB withdrew several guidance documents, including that 2024 BNPL interpretive rule[6]. As of the CFPB page we checked (last updated July 2025), that withdrawal was the latest federal status we could confirm.
United Kingdom. The Financial Conduct Authority (FCA) began regulating interest-free BNPL, which it calls deferred payment credit, on 15 July 2026[7]. It covers interest-free credit repayable in 12 or fewer instalments within 12 months[7]. Lenders must now check affordability, give key information before you sign, and contact you if you miss a payment, and you can complain to the Financial Ombudsman Service[7]. Two limits matter: agreements made before 15 July 2026 are not covered, and merchants that offer their own BNPL directly stay outside the rules[4].
European Union. The revised Consumer Credit Directive, adopted in October 2023, extends EU consumer-credit rules to credit below the old €200 threshold and to buy now, pay later schemes, and requires lenders to assess whether you can repay[8]. EU directives work through national laws, so the exact start date and details depend on each country's implementation; check your national regulator.
Key BNPL rule changes
Sep 2022
CFPB publishes its BNPL market report based on data from five lenders[1].
Oct 2023
The EU adopts the revised Consumer Credit Directive, which covers BNPL[8].
May 2024
CFPB issues an interpretive rule applying credit-card dispute protections to BNPL[5].
May 2025
CFPB withdraws the 2024 BNPL interpretive rule[6].
Jul 2026
UK FCA regulation of deferred payment credit begins on 15 July[7].
Common beginner mistakes with BNPL
Treating it as a payment method, not a loan
BNPL is borrowing. You owe the provider even if you later fall out with the shop, so returns and disputes must be handled carefully.
Ignoring the linked card
If repayments come from a credit card, you may end up paying card interest on your BNPL instalments, which defeats the 0% offer.
Assuming every BNPL product is interest-free
Longer-term BNPL loans can charge interest; read the APR before you accept. See APR vs APY.
Forgetting returns take time
In a market report, the CFPB found that more than 13% of BNPL transactions involved a return or dispute[5]; keep paying until the refund is confirmed, or ask the provider to pause the plan.
#Is BNPL better or worse than a credit card?
Neither is automatically better. A pay-in-4 plan has a fixed end date and often no interest, while a credit card is a revolving line of credit with a grace period and, in some countries, stronger purchase protection. We compare the two side by side, with worked numbers, in BNPL vs credit card. If you are curious why shops and apps increasingly offer loans inside their checkout, read embedded finance explained.
The bottom line
Buy now, pay later is a short loan wrapped in a checkout button. The shop pays for the interest-free version through higher fees, and you pay only if you are late or choose a longer, interest-bearing plan. The rules protecting you depend heavily on where you live, so check the provider's terms and your regulator's guidance before you rely on it.
Frequently asked questions
Does buy now, pay later affect my credit score?
It can. Many providers use a soft check that other lenders do not see[2], but missed payments can be reported to credit bureaus in some markets, and practices differ by provider and country.
Is BNPL really interest-free?
Pay-in-4 plans usually are, if you pay on time. Longer-term BNPL loans may charge interest, and late fees can apply on any plan[1].
Who decides whether I get approved?
The BNPL provider, not the shop. In the CFPB's study, 73% of applicants were approved in 2021[1].
What if the item I bought is faulty?
Contact the shop first and tell the BNPL provider. In the UK, regulated deferred payment credit agreements made from 15 July 2026 come with the same section 75 protection as a credit card[7].
Why do shops offer BNPL if it costs them more?
Because they hope it increases sales. Merchant fees for BNPL are typically 5% to 8%, against 2% to 3% for cards[2].
Sources
- Buy Now, Pay Later: Market trends and consumer impacts — Consumer Financial Protection Bureau, 2022 Primary
- 'Buy Now, Pay Later' Beyond 'Pay in 4': A Comprehensive Product Overview (FEDS Notes) — Board of Governors of the Federal Reserve System, 2026 Primary
- Economic Well-Being of U.S. Households in 2025: Credit — Board of Governors of the Federal Reserve System, 2026 Primary
- PS26/1: Regulation of Deferred Payment Credit (unregulated Buy Now Pay Later) — Financial Conduct Authority, 2026 Primary
- CFPB Takes Action to Ensure Consumers Can Dispute Charges and Obtain Refunds on Buy Now, Pay Later Loans — Consumer Financial Protection Bureau, 2024 Primary
- Buy Now, Pay Later (BNPL) products — compliance resources — Consumer Financial Protection Bureau, 2025 Primary
- Buy Now Pay Later — Financial Conduct Authority, 2026 Primary
- Consumer credit — European Commission Primary
