Explanation

CountryFormat of TAX ID registration
AustriaATU00000000
BelgiumBE000000000
BulgariaBG000000000
CroatiaHR0000000000
Czech RepublicCZ00000000 / CZ000000000 / CZ0000000000
DenmarkDK00000000
EstoniaEE000000000
FinlandFI00000000
FranceFR00000000000
GermanyDE000000000
Great BritainGB000000000 / GB000000000000
GreeceEL000000000
HungaryHU00000000
IrelandIE0X00000X
ItalyIT00000000000
LithuaniaLT000000000
LuxembourgLU00000000
MaltaMT00000000
NetherlandsNL000000000B00
PolandPL0000000000
PortugalPT000000000
RomaniaRO000000000
SlovakiaSK0000000000
SloveniaSI00000000
SpainESX0000000X
SwedenSE000000000000