VAT calculation and ID check
Aimeos extension for calculating VAT based on the billing address country. You can configure one or more countries where VAT is always added to the bill as well as countries where VAT is only added if no valid VAT ID is entered.
EU VAT IDs are checked online via the VIES service and all others offline based on the structure of the VAT ID. It contains rules for all countries that use VAT IDs.
This extension is essential for B2B commerce. It's also required for mixed B2C/B2B shops to calculate prices without VAT.