What billing models does this skill support?

It supports monthly, annual, quarterly, and custom usage-based or per-seat billing intervals common in modern software platforms.

Does it support international taxes?

Yes, it includes a tax calculator framework for handling jurisdiction-specific taxes including VAT, GST, and various regional sales taxes.

How does the dunning management system work?

It manages failed payment recovery through automated retry schedules, customer notifications, and account state transitions to reduce involuntary churn.

Can it handle mid-cycle plan upgrades?

Yes, it includes specialized logic for calculating prorated charges and credits when users change plans or seat counts during an active billing period.

Billing Automation

Name: Billing Automation
Author: HermeticOrmus

byHermeticOrmus

0•

E-commerce Solutions

Automates recurring billing, subscription lifecycles, and invoice management for SaaS and subscription-based platforms.

This skill provides a comprehensive framework for building and managing sophisticated billing systems. It covers the entire subscription lifecycle from trial to cancellation, handles automated invoicing, manages dunning processes for failed payments, and calculates complex proration for plan upgrades or seat changes. Whether you're building a SaaS platform or a usage-based service, this skill provides the implementation patterns and logic needed to handle recurring revenue streams, tax calculations, and billing cycle transitions reliably.

Key Features

01Subscription lifecycle management (Trial, Active, Past Due, Canceled)

02Dunning management and automated payment retry logic

03Regional tax calculation for VAT, GST, and Sales Tax

04Automated invoice generation and delivery

05Proration calculation for plan and seat changes

060 GitHub stars

Use Cases

01Implementing usage-based billing for cloud services and APIs

02Building a SaaS subscription backend with Stripe or custom payment providers

03Automating dunning workflows to reduce churn from failed payments

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hermeticormus/after-the-third-cup billing-automation

For use in Claude.ai and ChatGPT

Download Skill