How does it handle failed payments?

It implements a full dunning management system that schedules retries, sends customer notifications, and manages account status during grace periods.

Is it compatible with specific payment gateways like Stripe?

While the logic is provider-agnostic, the patterns are designed to integrate seamlessly with major APIs like Stripe, Paddle, and Chargebee.

Does this skill support regional tax calculations?

Yes, it includes logic for calculating applicable taxes such as US Sales Tax, UK/EU VAT, and GST based on the customer's jurisdiction.

Can I use this for usage-based billing models?

Absolutely. The skill provides patterns for calculating charges based on metered consumption in addition to standard flat-rate recurring fees.

Billing Automation

Name: Billing Automation
Author: lifangda

bylifangda

•

E-commerce Solutions

Automates complex subscription lifecycles, recurring payments, and dunning management workflows for SaaS applications.

The Billing Automation skill provides expert guidance and implementation patterns for building robust, scalable financial infrastructures. It masters the complete subscription lifecycle, from initial trials and active billing cycles to complex scenarios like mid-cycle proration and dunning management for failed payments. By utilizing these standardized workflows, developers can implement usage-based billing, automate multi-jurisdictional tax calculations (VAT/GST), and ensure accurate invoice generation, significantly reducing the engineering overhead required to manage recurring revenue systems.

Key Features

01Comprehensive subscription state management (trial, active, past_due, canceled)

02Precise proration algorithms for plan upgrades, downgrades, and seat changes

0316 GitHub stars

04Multi-regional tax calculation logic for US Sales Tax, VAT, and GST

05Automated dunning workflows for failed payment recovery and retry logic

06Flexible billing engine patterns for recurring and usage-based models

Use Cases

01Implementing complex mid-month subscription adjustments and credit logic

02Building a custom SaaS billing backend with Stripe or Braintree integration

03Automating multi-step invoice generation and delivery workflows

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lifangda/claude-plugins billing-automation

For use in Claude.ai and ChatGPT

Download Skill