Germany · Answer
Who sends the Steuer-ID letter, and when does it arrive?
After registering, a plain letter arrives with an 11-digit number and little explanation. Here is who sent it, why it only comes by post, and why you should keep it.
A plain letter from the Bundeszentralamt für Steuern (Federal Central Tax Office) brings your tax identification number (IdNr / Steuer-ID) after your first Anmeldung. For data-protection reasons the number is only ever communicated by post — nobody legitimate will email or phone it to you. Keep the letter: your employer needs the number, and it stays yours for life. Source ↗
Rules v2026-07-15.1 · verified 2026-07-15
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Rules last verified: 2026-07-15.