EU tax identifiers, explained clearly.
Fast, practical guidance on common European tax identifiers and how their formats differ by country. This site explains structure and usage without claiming official validation.
DE
FR
IT
ES
NL
Safe Format Checker
Format-only check. This does not confirm registration, status, or existence in any government system.
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What it is
What a TIN is, how it differs from VAT numbers, and why many platforms now request it.
How it is structured
Country patterns, character sets, and typical checksum roles, shown in a structure matrix.
Where it is used
Employment, banking, marketplaces, and reporting rules such as DAC7 and CRS.
Sources and scope
Official references used for terminology and policy context. This site is a reference layer, not an authority.