Stripe has released a new update to their Billing product that addresses EU VAT handling for SaaS companies. The company does not handle VAT internally but provides a taxRate field that must be filled by the user. Handling VAT can be challenging, and while Stripe offers no solution, third-party services like Chargebee and Octobat provide features to simplify this process. A company has developed their own integration using an NPM package called Sales Tax Node.js, which calculates VAT based on country and VAT number. The integration involves two services: Stripe for subscriptions and payments, and the Sales Tax NPM package for VAT calculation. The company uses a wrapper class to handle the integration, setting the origin country to determine the base VAT rate and using convenience functions to provide correct information to the front end. This integration may save SaaS companies $50 or more per month by reducing their tax liabilities.