Two commands for VAT: the rates of a country, and whether a VAT number is valid.
/vat <country codes>The standard VAT rate and the reduced rates of one or more European countries or the United Kingdom, by their two-letter codes, separated by commas. The reduced rates are grouped by rate, each with what it applies to.
/vatcheck <VAT number>Checks whether an EU or UK VAT number is valid, and gives the company name and address it is registered to. Several numbers can be checked at once, separated by commas.
A country or a number that is not found is listed with nothing found.