We open-sourced our internal Magento 2 module that keeps EU VAT rates and Tax Rules in sync automatically. It's on Packagist as storetown/module-tax-sync , MIT-licensed, and you can install it in one composer command. Here's why we did it and how it's built. The pain you didn't know you had If you run a Magento 2 store that ships across EU borders, you're probably maintaining ~50–60 tax rates by hand. Standard rate, reduced rate, sometimes a second reduced rate — for 27 EU countries, then Switzerland, the UK, and Norway if you care about those markets. You added them once during the shop setup. Then someone in Finland decided 25.5% was a better number than 24% (true story — happened in 2024). Then the Covid-era temporary reductions expired in five countries on different dates. Then Estonia announced a 24% standard rate effective 2025-07-01. Every time, an email lands in your finance team's inbox. Someone forwards it to dev. Dev edits Stores → Tax Zones and Rates .…