The tax identification number is used to identify the taxpayer in the tax assessment process. It ensures that tax returns, notices, and correspondence can always be clearly assigned to the respective taxpayer.
The tax identification number is a “non-descriptive number.” This means that neither personal data nor the responsible tax office can be deduced from the number itself.
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 even if you move or get married.
You can usually find your tax identification number
- on your income tax assessment or
- on your wage tax statement.
You can request your tax identification number using the form provided by the Federal Central Tax Office (BZSt) if
- within 3 months of your initial registration in Germany
- for your newborn child within 3 months of the birth
you have not yet received a letter containing the tax identification number.
For data protection reasons, we cannot provide this information by phone or email.
