What is a billing system?

A billing system is the software infrastructure that manages recurring subscription charges, invoicing, payment collection, plan management, and revenue tracking. It is the operational backbone that connects your product to your revenue.

For subscription businesses, the billing system handles plan creation and pricing, subscription creation and management, recurring charge scheduling, invoice generation, payment method storage, proration calculations, and integration with payment processors.

Common billing systems

Popular billing systems include Stripe Billing, Chargebee, Recurly, Zuora, and Shopify's subscription billing. Each offers different levels of flexibility, pricing model support, and integration options. Some businesses build custom billing logic on top of a payment processor's API.

Why billing system configuration affects churn

The billing system controls critical payment recovery settings: how many times failed payments are retried, the schedule for retries, the grace period before cancellation, and whether dunning notifications are sent. A misconfigured billing system can cancel subscriptions too quickly after a payment failure, turning recoverable declines into permanent churn.

FlyCode integrates with your existing billing system (Stripe, Shopify, Chargebee, Recharge) and takes over the recovery process, applying AI-optimized retry logic and card network data that goes beyond native billing system capabilities.