We are a Belgium based software company, so we are required to follow Belgian law when it comes to invoicing.
We do a syntax check on your VAT number according to the EU taxation documentation.
Based on the VAT number we will invoice with or without Belgian VAT
For all customers in Belgium = 21% VAT
For EU based companies (With a valid VAT number) = 0%
For EU based customers (Without a valid VAT number) = 21%
For Outside EU based companies or customers = 0%