Instalment Payments
What Are Instalment Payments? Definition and How They Work
Definition
Instalment payments divide a purchase amount into a defined number of equal or scheduled charges over a fixed period, typically without interest for short-term plans or with financing charges for longer terms. Offered at checkout by merchants, card issuers, and BNPL providers, instalment plans increase consumer purchasing power by spreading the cost of high-value purchases.
How it works
Instalment payments are delivered through several models depending on who provides the financing.
Issuer-based instalments allow cardholders to convert a card purchase into monthly payments using existing credit. The issuer divides the transaction into instalments and charges a fee or interest rate. The merchant settles in full at purchase time; the issuer manages the plan with the cardholder. Visa Installments and Mastercard Installments facilitate these flows at the network level.
BNPL-style instalments, Klarna, Affirm, Afterpay, are funded by the BNPL provider. The consumer applies at checkout and is approved in seconds; the BNPL provider pays the merchant in full (less a merchant fee). The consumer repays the BNPL provider in instalments. The merchant's settlement is immediate and decoupled from consumer repayment.
Merchant-funded instalments, offered directly by the merchant using their own cash flow or a lending facility, are used in high-ticket categories (furniture, electronics) where the merchant accepts deferred payment in exchange for conversion.
Why it matters
Instalment payments increase conversion and average order value in high-ticket categories. Presenting a $1,200 item as '4 payments of $300' removes the psychological barrier of a large single expenditure. Merchants offering instalment options report conversion uplift of 15%–30% in relevant categories.
BNPL merchant fees, typically 2%–6%, are substantially higher than standard card acceptance costs. Merchants must assess whether the conversion uplift and basket size increase justify the additional cost. Regulatory scrutiny of instalment and BNPL products is increasing, with the EU Consumer Credit Directive revision and UK FCA proposals tightening frameworks.
With PXP
PXP can accept instalment and BNPL methods alongside cards through its orchestration layer. Talk to our team about how PXP can support your instalment and BNPL acceptance.
Frequently asked questions
What is the difference between instalments and BNPL?
BNPL typically refers to short-term, often interest-free split payment products from third-party providers (Klarna, Afterpay) funding the merchant and collecting repayments from the consumer. Instalments is a broader term including BNPL-style products, issuer-based card instalment plans, and merchant-funded deferred payments. Not all instalment products are interest-free; BNPL products typically are for standard split-pay terms.
How does instalment settlement work for merchants?
Under BNPL and most third-party instalment models, the merchant receives full settlement at the time of the original transaction (less the provider's fee). Consumer repayment is managed entirely by the BNPL provider. Merchants bear no credit risk and receive immediate funds, the key benefit of third-party instalment models.
Are instalment payments regulated as consumer credit?
Regulatory treatment varies by market. The EU's revised Consumer Credit Directive (CCD2) brought many BNPL products within its scope from 2026. The UK FCA has proposed bringing BNPL into regulated credit. The US CFPB issued a 2024 interpretive rule treating some BNPL products as credit cards under TILA, but rescinded that rule in 2025. Interest-bearing instalment products have typically been regulated as consumer credit for longer.
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