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Billing Portal

Web

Source code

Desktop view

Mobile view

Key features

Plan lifecycle management with versioning

Automatic proration for plan changes

Invoice status machine: draft to paid to overdue

MRR dashboards with trend analysis

Multi-tenant with tenant-specific pricing

Payment gateway with retry logic

Reports: revenue, churn, LTV, ARPU

Description

Billing Portal is a multi-tenant SaaS subscription billing platform managing the complete subscription lifecycle. It handles plan creation, proration, invoice status machine, and MRR dashboards. Designed for SaaS businesses needing reliable billing infrastructure.

Technologies used

Angular

TypeScript

Tailwind CSS RxJS

RxJS

Neon