Best Installment Payment and Buy Now Pay Later (BNPL) Software in 2026

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Installment Payment and Buy Now Pay Later (BNPL) Software

Afterpay

Subscription Free Trial

A flexible payment solution enabling customers to split purchases into interest-free installments over six weeks. Businesses gain access to daily settlement reports for streamlined reconciliation and order verification.

PayPal

Free

PayPal is a robust digital payment platform designed for secure online transactions and financial management. It allows users to send and receive money, make purchases, and manage accounts seamlessly. With advanced encryption and fraud protection, P…

Klarna

Subscription Free Trial

A payment platform enabling businesses to provide secure, flexible checkout options. It streamlines purchases with auto-filled details, customizable interfaces, and payment methods like bank transfers.

Sezzle

Free Trial

A buy-now-pay-later solution enabling merchants to offer installment payments. With mobile apps and an intuitive dashboard, it integrates with platforms like Shopify, BigCommerce, and Salesforce.

Affirm

Subscription Free Trial

Offers flexible, interest-free biweekly or monthly payment plans for shoppers, seamlessly integrating with e-commerce, in-store, and telesales. Merchants gain tools for setup and prequalification.