What billing models does this skill support?

It supports various models including fixed-rate recurring, usage-based billing, and per-seat pricing across monthly, annual, or custom billing cycles.

How does it handle failed payments?

The skill includes a dunning management framework that automates retry schedules, customer notifications, grace periods, and status transitions for past-due accounts.

Can this skill calculate taxes automatically?

Yes, it provides patterns for multi-region tax calculation including US Sales Tax, UK/EU VAT, and GST based on the customer's jurisdiction.

Does it support mid-cycle subscription changes?

Yes, it includes specialized logic for proration to accurately calculate credits and charges when users upgrade, downgrade, or change seat counts mid-billing cycle.

Is it compatible with Stripe?

While the logic is implementation-agnostic, the skill provides specific patterns and examples designed for seamless integration with payment processors like Stripe.

Billing Automation

Name: Billing Automation
Author: HermeticOrmus

byHermeticOrmus

0•

E-commerce Solutions

Automates recurring billing, subscription lifecycle management, and complex invoicing workflows for SaaS and digital products.

Billing Automation is a comprehensive skill designed to help developers build and manage robust subscription-based payment systems. It provides implementation patterns for handling the entire subscription lifecycle, from initial trial periods and active renewals to managing failed payments through dunning workflows and calculating complex prorations for mid-cycle plan changes. It is particularly useful when integrating with payment processors like Stripe or building custom internal billing engines that require precise tax calculations and automated invoice generation.

Key Features

010 GitHub stars

02Precise proration logic for handling mid-cycle plan upgrades, downgrades, and seat changes

03Advanced dunning management for automated failed payment recovery and retry scheduling

04Dynamic invoice generation with support for usage-based billing and line item management

05Automated subscription lifecycle management including trial, active, past_due, and canceled states

06Multi-jurisdiction tax calculation for global compliance including VAT, GST, and US Sales Tax

Use Cases

01Building a SaaS platform with tiered subscription plans and automated free trials

02Implementing usage-based billing for cloud services or high-volume API platforms

03Automating failed payment recovery workflows to reduce churn and improve revenue retention

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hermeticormus/alqvimia-contador billing-automation

For use in Claude.ai and ChatGPT

Download Skill