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Q18 - Is it possible to have an open interface to the Commission's web site?Q19 - Is it possible to get the VAT number of a customer/supplier knowing his name and address?Q16 - What do I have to do if I receive an error message?
Q9 - Do I need a valid VAT number for my recapitulative statement? Q11 - Is it possible to know the algorithms used by Member States in the construction of their VAT identification numbers?
For additional information, please see VAT on e-commerce (FAQ).
Databases with VAT numbers are maintained by national tax administrations.
Q12 - What do I have to do if my own VAT number appears as invalid?
Q13 - What do I have to do if the VAT number of my customer appears as invalid?