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Global Tax ID Validation Guide

Global Tax ID Validation Guide – Free & Trusted by Compliance Experts

The most reliable reference for Tax ID formats, validation rules, and official government sources — covering 135+ countries for full global Tax ID verification/lookup compliance.

Aland IslandsAland Islands
AlbaniaAlbania
AndorraAndorra
AustriaAustria
BelarusBelarus
BelgiumBelgium
Bosnia and HerzegovinaBosnia and Herzeg...
Bouvet IslandBouvet Island
BulgariaBulgaria
CroatiaCroatia
CyprusCyprus
Czech RepublicCzech Republic
DenmarkDenmark
EstoniaEstonia
Faroe IslandsFaroe Islands
FinlandFinland
FranceFrance
GeorgiaGeorgia
GermanyGermany
GreeceGreece
HungaryHungary
IcelandIceland
IrelandIreland
Isle of ManIsle of Man
ItalyItaly
JerseyJersey
KosovoKosovo
LatviaLatvia
LiechtensteinLiechtenstein
LithuaniaLithuania
LuxembourgLuxembourg
MaltaMalta
MoldovaMoldova
MonacoMonaco
MontenegroMontenegro
NetherlandsNetherlands
North MacedoniaNorth Macedonia
Northern IrelandNorthern Ireland
NorwayNorway
PolandPoland
PortugalPortugal
RomaniaRomania
RussiaRussia
San MarinoSan Marino
SerbiaSerbia
SlovakiaSlovakia
SloveniaSlovenia
SpainSpain
SwedenSweden
SwitzerlandSwitzerland
TurkeyTurkey
UkraineUkraine
United KingdomUnited Kingdom

The Most Advanced Global Tax ID Lookup. Period.

Unlike basic format checks many providers call “TIN validation,” TaxDo delivers real-time TIN, VAT, and GST verification directly from official tax authority sources in 135+ countries — ensuring true compliance, not guesswork