Can it handle complex proration?

Yes, it includes logic for calculating credits and charges when users upgrade, downgrade, or change seat counts mid-billing cycle.

How does dunning management work?

It automates the retry schedule for failed payments and manages customer notification flows to reduce churn and recover revenue before canceling a subscription.

Does it support international tax laws?

The skill provides templates for calculating US Sales Tax, UK/EU VAT, and Australian GST based on customer jurisdiction and regional tax rates.

What payment processors does this skill support?

While the logic is engine-agnostic, the patterns are designed to integrate seamlessly with major providers like Stripe, Braintree, and Paddle through standard API implementations.

Billing Automation

Name: Billing Automation
Author: HermeticOrmus

byHermeticOrmus

E-commerce Solutions

Automates recurring payment workflows, subscription lifecycle management, and invoice generation for SaaS and digital services.

About

This skill empowers developers to architect robust subscription billing systems, handling everything from trial periods and renewals to complex proration and tax calculations. It provides standardized patterns for dunning management (failed payment recovery), usage-based billing models, and localized tax handling (VAT, GST, Sales Tax), making it an essential tool for building production-grade SaaS platforms and automated e-commerce backends.

Key Features

Smart dunning workflows for failed payment recovery and retries
Flexible billing cycle support for monthly, annual, and usage-based models
Dynamic proration logic for mid-cycle plan upgrades and downgrades
Automated invoice generation with multi-jurisdiction tax calculations
Automated subscription lifecycle management (Trial, Active, Past Due, Canceled)
0 GitHub stars

Use Cases

Automating VAT and Sales Tax compliance for global digital sales
Implementing usage-based billing for cloud services or API products
Building a SaaS platform with tiered monthly and annual subscription plans

About

Key Features

Smart dunning workflows for failed payment recovery and retries
Flexible billing cycle support for monthly, annual, and usage-based models
Dynamic proration logic for mid-cycle plan upgrades and downgrades
Automated invoice generation with multi-jurisdiction tax calculations
Automated subscription lifecycle management (Trial, Active, Past Due, Canceled)
0 GitHub stars

Use Cases

Automating VAT and Sales Tax compliance for global digital sales
Implementing usage-based billing for cloud services or API products
Building a SaaS platform with tiered monthly and annual subscription plans