ChaChing

ChaChing is a SaaS billing infrastructure platform designed primarily for subscription businesses that want to reduce billing costs without replacing their existing payment processor. It can manage subscriptions, one-off invoices, renewals, grace periods, upgrades and downgrades with automatic proration, customer billing portals, payment links, tax calculations, invoice reconciliation and revenue analytics. Businesses already using Stripe can migrate their customers, subscriptions, products and related billing dependencies to ChaChing while continuing to process payments through Stripe. The platform is built on the open-source Kill Bill billing engine and provides an OpenAPI-based developer architecture, testing sandbox and APIs for integrating billing into custom applications.