* UID (Umsatzsteuer-Identifikationsnummer, Austrian VAT number)
* BTW, TVA, NWSt (Belgian VAT number)
* EGN (ЕГН, Единен граждански номер, Bulgarian personal identity codes)
* PNF (ЛНЧ, Личен номер на чужденец, Bulgarian number of a foreigner)
* VAT (Идентификационен номер по ДДС, Bulgarian VAT number)
* CPF (Cadastro de Pessoas Físicas, Brazillian national identifier)
* Αριθμός Εγγραφής Φ.Π.Α. (Cypriot VAT number)
* DIČ (Daňové identifikační číslo, Czech VAT number)
* RČ (Rodné číslo, the Czech birth number)
* Ust ID Nr. (Umsatzsteur Identifikationnummer, the German VAT number)
* CPR (personnummer, the Danish citizen number)
* CVR (Momsregistreringsnummer, Danish VAT number)
* EAN (International Article Number)
* KMKR (Käibemaksukohuslase, Estonian VAT number)
* CIF (Certificado de Identificación Fiscal, Spanish company tax number)
* DNI (Documento nacional de identidad, Spanish personal identity codes)
* NIE (Número de Identificación de Extranjeros, Spanish foreigner number)
* NIF (Número de Identificación Fiscal, Spanish VAT number)
* VAT (European Union VAT number)
* ALV nro (Arvonlisäveronumero, Finnish VAT number)
* HETU (Henkilötunnus, Finnish personal identity code)
* SIREN (a French company identification number)
* n° TVA (taxe sur la valeur ajoutée, French VAT number)
* VAT (United Kingdom (and Isle of Man) VAT registration number)
* FPA, ΦΠΑ (Foros Prostithemenis Aksias, the Greek VAT number)
* GRid (Global Release Identifier)
* OIB (Osobni identifikacijski broj, Croatian identification number)
* ANUM (Közösségi adószám, Hungarian VAT number)
* IBAN (International Bank Account Number)
* PPS No (Personal Public Service Number, Irish personal number)
* VAT (Irish VAT number)
* IMEI (International Mobile Equipment Identity)
* IMSI (International Mobile Subscriber Identity)
* ISAN (International Standard Audiovisual Number)
* ISBN (International Standard Book Number)
* ISIL (International Standard Identifier for Libraries)
* ISMN (International Standard Music Number)
* ISSN (International Standard Serial Number)
* Partita IVA (Italian VAT number)
* PVM (Pridėtinės vertės mokestis mokėtojo kodas, Lithuanian VAT number)
* TVA (taxe sur la valeur ajoutée, Luxembourgian VAT number)
* PVN (Pievienotās vērtības nodokļa, Latvian VAT number)
* MEID (Mobile Equipment Identifier)
* VAT (Maltese VAT number)
* BSN (Burgerservicenummer, the Dutch national identification number)
* BTW-nummer (Omzetbelastingnummer, the Dutch VAT number)
* Onderwijsnummer (Dutch school number)
* NIP (Numer Identyfikacji Podatkowej, Polish VAT number)
* NIF (Número de identificação fiscal, Portuguese VAT number)
* CF (Cod de înregistrare în scopuri de TVA, Romanian VAT number)
* CNP (Cod Numeric Personal, Romanian Numerical Personal Code)
* VAT (Moms, Mervärdesskatt, Swedish VAT number)
* ID za DDV (Davčna številka, Slovenian VAT number)
* IČ DPH (IČ pre daň z pridanej hodnoty, Slovak VAT number)
* RČ (Rodné číslo, the Slovak birth number)
* SSN (U.S. Social Security Number)
