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Source: BUS Sachsen-Anhalt (Linie6PLus)

Apply for a tax identification number


The tax identification number identifies you in the tax procedure. The number can always be uniquely assigned to tax returns, communications and correspondence.

The tax identification number is a "non-speaking number". This means that neither personal data nor the competent tax office can be read from it.

Every newborn child as well as every new citizen and every new citizen is automatically assigned a tax identification number at the first registration in Germany. It remains valid for a lifetime and does not change when moving or getting married.

If you have not yet received a letter with the tax identification number for your newborn child within 3 months of your first registration in Germany or for your newborn child, you can provide your personal data to the Federal Central Tax Office. It will then contact the reporting authority and send you the tax identification number.

The tax identification number can be obtained by post to your registration address. A notification by phone or e-mail is not possible for data protection reasons.

Every citizen in Germany is automatically assigned a tax identification number.

You will receive the tax identification number automatically:

  • Children receive the tax identification number after birth.
  • If you are unable to find your tax identification number, you will usually find the number as well
    • in the income tax assessment,
    • on the payroll tax certificate or
    • in the information letter of the tax office.
  • You can also request the number again via the website of the Federal Central Tax Office.
  • You will receive the number by post to your current registration address.

Federal Central Office for Taxation
At the Küppe 1
53225 Bonn

Phone: 0228 406-0
Fax: 0228 406-2661
Email: poststelle@bzst.bund.de

Telephone (Tax Info Center): 0228 4061240
Fax (Tax Info Center): 0228 4063200

Call times
Monday to Friday: 8:00 a.m. to 4:00 p.m.

about 4 weeks

Forms: no
Online procedure possible: yes (in case of loss)
Written form required: no
Personal appearance necessary: no

Online form for re-notification of the tax identification number (IdNr)

The text was automatically translated based on the German content.

Federal Ministry of Finance

No authority found