Can it calculate prorated charges for plan changes?

Yes, it provides implementation patterns for calculating credits and charges when customers upgrade, downgrade, or change seat counts mid-billing cycle.

How does it handle failed payments?

It includes specialized dunning management logic with automated retry schedules, grace periods, and customer notification workflows to recover failed transactions.

What billing models does this skill support?

The Billing Automation skill supports a variety of models including flat-rate subscriptions, tiered plans, usage-based billing, and seat-based pricing.

Does this skill handle international taxes?

It includes logic for calculating sales tax, VAT, and GST based on customer jurisdiction for major regions including the US, UK, EU, and Australia.

Billing Automation

Name: Billing Automation
Author: amurata

byamurata

•

Eコマースソリューション

Automates complex subscription lifecycles, recurring invoice generation, and failed payment recovery workflows.

概要

This skill provides comprehensive guidance and implementation patterns for building robust subscription billing systems within Claude Code. It covers the entire subscription lifecycle from trial to cancellation, including complex logic for automated dunning management, prorated plan changes, usage-based billing, and multi-jurisdictional tax calculation. By providing standardized code patterns for recurring billing cycles and payment state transitions, it helps developers build secure, reliable, and scalable financial backends for SaaS and e-commerce applications.

主な機能

Proration calculations for mid-cycle plan upgrades and downgrades
Subscription lifecycle management (Trial, Active, Past Due, Canceled)
Automated dunning and payment recovery retry logic
Multi-region tax, VAT, and GST calculation frameworks
Usage-based and recurring billing cycle processing
3 GitHub stars

ユースケース

Building a SaaS subscription backend with recurring payment processing
Implementing automated invoice generation and customer notification systems
Managing complex seat-based or usage-based billing adjustments

概要

主な機能

Proration calculations for mid-cycle plan upgrades and downgrades
Subscription lifecycle management (Trial, Active, Past Due, Canceled)
Automated dunning and payment recovery retry logic
Multi-region tax, VAT, and GST calculation frameworks
Usage-based and recurring billing cycle processing
3 GitHub stars

ユースケース

Building a SaaS subscription backend with recurring payment processing
Implementing automated invoice generation and customer notification systems
Managing complex seat-based or usage-based billing adjustments