Does this skill support international taxes?

Yes, it includes logic for calculating various regional taxes including US Sales Tax (CA, NY), UK/EU VAT, and Australian GST based on the customer's jurisdiction.

What is dunning management in this context?

Dunning management is the automated process of recovering failed payments through scheduled retries, customer notifications, and grace periods to prevent involuntary churn.

How does this skill handle plan upgrades mid-cycle?

It includes a Proration Calculator that determines the unused value of the old plan and the prorated cost of the new plan based on the remaining days in the billing period.

Can I integrate this with Stripe or other gateways?

Absolutely. While the skill provides the core logic and state management, it is designed to easily interface with payment processors like Stripe, Braintree, or Paddle for actual transaction execution.

Billing & Subscription Automation

Name: Billing & Subscription Automation
Author: GaitanS

byGaitanS

E-commerce Solutions

Automates recurring billing cycles, subscription lifecycles, and invoice management for SaaS and digital services.

About

The Billing Automation skill provides specialized logic and implementation patterns for building robust financial systems. It covers the entire subscription lifecycle, from trial management and plan activation to complex scenarios like mid-cycle proration, automated dunning (failed payment recovery), and regional tax calculations (VAT/GST). Whether you are building a custom billing engine or integrating with payment processors like Stripe, this skill ensures best practices for handling usage-based billing, seat adjustments, and automated invoice delivery.

Key Features

Multi-jurisdictional tax calculation supporting US Sales Tax, VAT, and GST
0 GitHub stars
Automated dunning workflows with retry schedules and customer notifications
Comprehensive subscription state management (Trial, Active, Past Due, Canceled)
Precise proration logic for plan upgrades, downgrades, and seat changes
Automated invoice generation for recurring and usage-based billing models

Use Cases

Building a custom SaaS billing backend with automated renewals
Implementing a failed payment recovery system to reduce churn
Managing complex enterprise plan changes with prorated credits and charges

About

Key Features

Multi-jurisdictional tax calculation supporting US Sales Tax, VAT, and GST
0 GitHub stars
Automated dunning workflows with retry schedules and customer notifications
Comprehensive subscription state management (Trial, Active, Past Due, Canceled)
Precise proration logic for plan upgrades, downgrades, and seat changes
Automated invoice generation for recurring and usage-based billing models

Use Cases

Building a custom SaaS billing backend with automated renewals
Implementing a failed payment recovery system to reduce churn
Managing complex enterprise plan changes with prorated credits and charges