Obtain tax identification number

    As a citizen in Germany, you automatically receive a tax identification number. You can request a new one online if you lose it.

    Description

    The tax identification number is used to identify the taxpayer in the taxation procedure. It means that tax returns, notifications and correspondence can always be clearly assigned to the respective taxpayer.

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

    Every newborn child and all new citizens are automatically assigned a tax identification number when they first register in Germany. It remains valid for life and does not change when you move house or get married.

    You can usually also find your tax identification number

    • in your income tax assessment notice or
    • on your income tax statement.

    You can request your tax identification number via the input form of the Federal Central Tax Office (BZSt) if

    • within 3 months of your first registration in Germany
    • you have not yet received a tax identification number for your newborn child within 3 months of the birth

    you have not yet received a letter with the tax identification number.

    For data protection reasons, it is not possible to notify us by telephone or e-mail.

    Online service

    Re-notification of the tax identification number (IdNr) - input form

    ID: B100019_123392316

    Description

    You can request a new notification of your tax identification number by entering the data in the form. The Virtual Online Information Service (ViOlA) will help you with this.

    Use this service online

    Trust level

    You need an account with password to use this online service (trust level: basic registration).

    further information on the level of trust for online services

    Identification

    • electronic identification using national eID means – manual input

    Language

    Deutsch

    Sprache: de

    Englisch

    Sprache: en

    Sprachbezeichnung nativ:

    English

    Contact person

    Bundeszentralamt für Steuern (BZSt)

    Address

    address

    Hauptsitz Bonn-Beuel

    An der Küppe 1

    53225 Bonn

    Save contact

    Opening hours

    Monday: 09:00 - 16:00 Tuesday: 09:00 - 16:00 Wednesday: 09:00 - 16:00 Thursday: 09:00 - 16:00 Friday: 09:00 - 16:00

    Contact

    Internet

    Keywords

    BZSt

    Version

    Technisch geändert on 09.07.2024

    Language version

    Deutsch

    Sprache: de

    Englisch

    Sprache: en

    Sprachbezeichnung nativ:

    English

    Required documents

    You do not need to submit any documents.

    Prerequisites

    All taxable persons in Germany receive a tax identification number.

    No legal remedies are provided.

    Procedure

    You will receive the tax identification number automatically by post to your registration address.

    • As a taxable person in Germany, you will automatically receive a tax identification number.
    • Children receive their tax identification number after birth.
    • If you cannot find your tax identification number, you can request your tax identification number again online using the entry form on the website of the Federal Central Tax Office (BZSt).
      • The form guides you step by step through the individual sections.
      • You can also complete the form using the Virtual Online Information (ViOlA), a chatbot.
    • Complete the form in full and submit it by clicking on the "Send" button.
    • You will receive the tax identification number by post to your current registration address.

    Deadlines

    There is no deadline.

    Processing time

    If, in exceptional cases, the tax certificate has not been sent even after 3 months, it is advisable to submit a written request to the Federal Central Tax Office, stating the required data.

    4 weeks (Durchschnittliche Bearbeitungsdauer bei Verwendung des Eingabeformulars)

    4 to 8 weeks (Bearbeitungsdauer bei erstmaliger Wohnsitzanmeldung in Deutschland nach der Geburt)

    Costs

    There are no costs involved.

    Notes (specifics)

    There are no indications or specifics.

    Further Information

    Area of validity

    Germany-wide

    Official approval

    Officially approved by Federal Ministry of Finance (BMF) on 30.07.2025

    Version

    Technisch geändert on 08.09.2025

    Keywords

    Federal Central Tax Office

    Language version

    Deutsch

    Sprache: de

    Englisch

    Sprache: en

    Sprachbezeichnung nativ:

    English