private $euVatFormats = array(
'AT' => '(AT)?U[0-9]{8}', # Austria
'BE' => '(BE)?0[0-9]{9}', # Belgium
'BG' => '(BG)?[0-9]{9,10}', # Bulgaria
'CY' => '(CY)?[0-9]{8}[A-Z]', # Cyprus
'CZ' => '(CZ)?[0-9]{8,10}', # Czech Republic
'DE' => '(DE)?[0-9]{9}', # Germany
'DK' => '(DK)?[0-9]{8}', # Denmark
'EE' => '(EE)?[0-9]{9}', # Estonia
'GR' => '(EL)?[0-9]{9}', # Greece
'ES' => '(ES)?[A-Z][0-9]{7}(?:[0-9]|[A-Z])', # Spain
'FI' => '(FI)?[0-9]{8}', # Finland
'FR' => '(FR)?[0-9A-Z]{2}[0-9]{9}', # France
//'GB' => '(GB)?([0-9]{9}([0-9]{3})?|[A-Z]{2}[0-9]{3})', # United Kingdom // Brexit!
'HR' => '(HR)?[0-9]{11}', # Croatia
'HU' => '(HU)?[0-9]{8}', # Hungary
'IE' => '(IE)?[0-9]{7}[A-Z]{1,2}', # Ireland
'IE2' => '(IE)?[0-9][A-Z][0-9]{5}[A-Z]', # Ireland (2)
'IT' => '(IT)?[0-9]{11}', # Italy
'LT' => '(LT)?([0-9]{9}|[0-9]{12})', # Lithuania
'LU' => '(LU)?[0-9]{8}', # Luxembourg
'LV' => '(LV)?[0-9]{11}', # Latvia
'MT' => '(MT)?[0-9]{8}', # Malta
'NL' => '(NL)?[0-9]{9}B[0-9]{2}', # Netherlands
'PL' => '(PL)?[0-9]{10}', # Poland
'PT' => '(PT)?[0-9]{9}', # Portugal
'RO' => '(RO)?[0-9]{2,10}', # Romania
'SE' => '(SE)?[0-9]{12}', # Sweden
'SI' => '(SI)?[0-9]{8}', # Slovenia
'SK' => '(SK)?[0-9]{10}', # Slovakia
);
in this list missing XI that is North Ireland and IE2 what is it?
QuoteAs of 01/01/2021, the VoW service to validate UK (GB) VAT numbers ceased to exist while a new service to validate VAT numbers of businesses operating under the Protocol on Ireland and Northern Ireland appeared. These VAT numbers are starting with the “XI” prefix, which may be found in the “Member State / Northern Ireland” drop down under the new entry “XI-Northern Ireland”. Moreover, any quote of “Member State” is replaced by “Member State / Northern Ireland” and any quote of “MS” is replaced by “MS / XI”. All traders seeking to validate UK (GB) VAT numbers may address their request to the UK Tax Administration.
https://ec.europa.eu/taxation_customs/vies/#/vat-validation
XI has same VAT syntax of GB VAT:
(XI)?([0-9]{9}([0-9]{3})?|[A-Z]{2}[0-9]{3})
please avoid the VIES check if the VAT code is in the same country of the Shop.