Buy Now, Pay Later: How Deferred Payment Plans Work

Buy now, pay later (BNPL) is a short-term financing arrangement that allows consumers to purchase goods or services immediately and pay for them in instalments over several weeks or months. At checkout, the buyer’s payment is processed by a financing provider, which pays the merchant. The buyer then owes the provider rather than the merchant. The model has grown alongside the wider adoption of digital payments. The World Bank’s Global Findex 2025 report finds that 79% of adults worldwide hold a financial account and that digital merchant payments have reached 42% of adults in low- and middle-income economies^[1]. This guide explains how BNPL plans are structured, what they cost, and what both sides of the transaction should consider.

How a BNPL Transaction Works

The process is broadly similar across providers. A buyer selects BNPL as a payment method, completes a brief assessment and, if approved, the provider pays the merchant, typically upfront and less any applicable fee. From that point, the buyer repays the provider according to the agreed schedule.

This distinction matters when disputes arise. Questions about a product or its delivery should generally be directed to the merchant, while questions about repayments should be directed to the provider. Understanding which party is responsible for each obligation helps prevent confusion when an order goes wrong.

The Two Main BNPL Plan Structures

Short-term plans divide a purchase into a small number of payments, commonly four instalments over approximately six to eight weeks, with the first instalment usually due at the time of purchase. Longer-term plans spread repayments over several months, a year or more and may charge interest.

The distinction is more than cosmetic. Short-term plans are designed around near-term income cycles and are often interest-free when payments are made on time, although fees may apply in certain circumstances. Longer-term plans more closely resemble traditional instalment credit, with interest potentially accruing throughout the repayment period. In some markets, these products may also be subject to consumer credit regulations and protections.

Understanding which structure is being offered before committing is a sensible first step for anyone considering BNPL.

The assessment at checkout is brief, but it still involves checks. Providers typically verify the buyer’s identity and, depending on the market and provider, may consider information such as the payment method on file, previous repayment behaviour with the same provider and, increasingly, credit bureau records.

The assessment is designed to produce a decision quickly, often within seconds, and therefore relies on a limited set of information. A rejection does not necessarily indicate that the applicant is generally uncreditworthy; it may simply reflect what the provider can verify at that particular moment. A buyer who is declined may be approved later, depending on changes in their circumstances, available information and the provider’s assessment criteria.

However, the assessment is not necessarily a comprehensive review of the buyer’s overall financial circumstances or ability to manage all existing commitments. That responsibility remains largely with the buyer, which makes understanding the risks of holding several BNPL plans simultaneously particularly important.

What It Costs and Where It Can Go Wrong

For interest-free plans, providers generate revenue primarily through merchant fees and, in some circumstances, charges levied on buyers for late payments, rescheduling or failed collection attempts.

One important risk for buyers is the accumulation of multiple commitments. Each individual plan may appear affordable, but several overlapping plans can gradually create a repayment burden that exceeds the buyer’s available income. This is sometimes referred to as plan stacking.

Late or missed payments may also be reported to credit bureaus in some markets, potentially affecting future borrowing opportunities. A practical precaution is to list all existing BNPL plans before taking out another one, record their remaining instalments and confirm that the additional repayments are affordable alongside other financial commitments.

The Merchant’s Perspective

For merchants, BNPL can help improve conversion rates and increase average order value. Offering deferred payment at checkout may encourage customers to complete purchases, particularly for higher-priced items.

The trade-off is the fee charged by the provider, which reduces the amount the merchant receives from each transaction. Refunds introduce additional complexity. When an item is returned, the provider typically adjusts the buyer’s repayment obligations and refunds any instalments already collected, where applicable. However, the sequence of events between the merchant’s refund and the adjustment of the BNPL plan varies by provider. Merchants should understand these arrangements before introducing the service.

For smaller merchants, BNPL is also an example of embedded finance. The provider handles the credit assessment and repayment collection, while the merchant can offer a financing option without directly administering the credit facility. The precise allocation of regulatory responsibilities depends on the arrangement and the applicable jurisdiction.

Settlement timing is another important consideration. Providers differ in how quickly merchants receive payment, whether through settlement on the day of the transaction or according to the platform’s usual payout schedule. Their procedures for processing refunds and recovering previously settled amounts can also vary.

Reconciliation is easier when the provider’s reporting clearly identifies the transaction value, the fee deducted and the final settlement amount. This allows the merchant’s accounting records to be matched against the provider’s statements with minimal manual intervention.

When evaluating a BNPL integration, merchants should consider the potential improvement in conversion rates alongside the provider’s fees, settlement terms and reporting capabilities. The relative importance of these factors will depend on the merchant’s business model, margins and operational requirements.

A Buyer’s Checklist Before Using BNPL

Four checks can help consumers avoid common pitfalls.

First, confirm the complete repayment schedule and the total amount payable, rather than focusing only on the initial instalment.

Second, review the terms governing late payments, rescheduling and failed collections before the first repayment falls due.

Third, check whether the provider reports account openings, repayments or missed payments to credit bureaus in the relevant market.

Finally, for larger purchases, compare the total cost of BNPL with the alternative of saving until the purchase can be made outright. The convenience of spreading payments may be worthwhile, but any additional cost should be understood before making a commitment.

Frequently Asked Questions

1. Is buy now, pay later the same as a credit card?

No. A credit card generally provides a revolving credit facility that can be used repeatedly, subject to the available credit limit. A BNPL plan typically establishes a fixed repayment schedule for an individual purchase and ends when the amount due has been repaid. Credit reporting, fee structures and consumer protections also differ between the two products and vary by market.

2. Does using BNPL affect my credit score?

It can, depending on the provider and the market. Some providers report BNPL accounts, repayments and missed payments to credit bureaus, while others may not. The effect also depends on the relevant credit reporting system and scoring methodology. Check the provider’s credit reporting policy before entering into your first plan.

3. What happens if I return an item?

The merchant generally processes the refund, and the provider adjusts the buyer’s repayment obligations or refunds instalments already collected, as applicable. The exact process, including how the first instalment is handled, varies by provider and the terms of the agreement. Review the refund policy before completing the purchase.

4. Why do merchants offer BNPL if they have to pay a fee?

Merchants may offer BNPL because deferred payment can encourage customers to complete purchases and increase average order value, particularly for higher-priced items. The merchant fee is the cost of offering this additional payment option, while the provider generally manages the credit assessment and repayment collection. Whether the arrangement is commercially worthwhile depends on the additional sales generated relative to the associated costs.

5. Are there interest-free BNPL plans?

Yes. Short-term plans, including pay-in-four arrangements, are often interest-free when repayments are made according to schedule. However, fees may apply in certain circumstances. Longer-term plans may charge interest over the repayment period. The applicable terms vary by provider, product and market, so buyers should confirm the total amount payable before committing.

Conclusion

Buy now, pay later allows consumers to spread purchase costs over time while giving merchants another payment option at checkout. However, buyers should understand repayment schedules, fees and potential credit reporting implications, while merchants should assess provider fees, settlement terms and operational requirements. Reviewing these factors helps both parties determine whether BNPL is appropriate for their needs.

This article is intended for informational purposes only and does not constitute legal, financial, investment, or other professional advice, nor does it constitute a recommendation of any product or service. This article should not be regarded as constituting an offer or a solicitation to buy or sell any regulated or financial products or services. It has not been reviewed by any regulatory authority in any jurisdiction. Bettr makes no representations or warranties regarding the accuracy, completeness, or applicability of the content, and readers are encouraged to consult with legal, financial, or other professionals for advice tailored to their specific situation. Bettr does not guarantee the accuracy and completeness of this article and expressly disclaims any and all liability to any person in respect of the consequences of anything done or omitted to be done wholly or partly in reliance on this article.

[1] World Bank — Global Findex Database 2025 (account ownership and digital merchant payments). https://www.worldbank.org/en/publication/globalfindex