Steuer-ID in Germany (2026): What It Is, How to Get It, and Where to Find Your Tax Identification Number
After arriving in Germany, one of your first administrative steps is registering your place of residence (Anmeldung). Shortly afterwards, you will receive one of your most important official documents by post – your Steuer-ID, also known as the German Tax Identification Number.
This 11-digit identification number is assigned to every individual and is used in almost all tax-related matters. It is required by your employer, for filing tax returns, communicating with the tax authorities, and many other administrative procedures.
In most cases, you do not need to apply for a Steuer-ID yourself. Once you have successfully completed your residence registration (Anmeldung), the number is assigned automatically and sent by post to the address you provided during registration.
However, newcomers to Germany often have many questions, such as:
- What exactly is a Steuer-ID?
- How long does it take for the letter to arrive?
- Can I start working without a Steuer-ID?
- What should I do if the letter never arrives?
- Do children receive their own Steuer-ID?
- What is the difference between a Steuer-ID, Steuernummer, Steuerklasse, and Sozialversicherungsnummer?
In this comprehensive guide, you'll find answers to all the most important questions about the German Steuer-ID. We'll explain step by step how it is issued, when you'll need it, and what to do in different situations.
What Is a Steuer-ID?
The Steuer-ID (officially Steueridentifikationsnummer) is Germany's personal tax identification number. It serves as a unique identifier within the German tax system and is assigned to every individual registered in Germany.
Each Steuer-ID consists of 11 digits and is unique – no two people can have the same tax identification number.
One of the most important features of the Steuer-ID is that it is issued only once in a lifetime. Your number remains the same even if you:
- move to a new address
- relocate to another German federal state
- get married or change your surname
- leave Germany for several years and later return.
Once you have been assigned a Steuer-ID, it remains your personal tax identification number for life.
It is also important to know that every registered family member receives their own Steuer-ID, regardless of age. This includes adults, children, and even newborn babies. Each person is assigned their own individual 11-digit tax identification number.
What Is the Steuer-ID Used For?
Most people first become familiar with their Steuer-ID when they start working in Germany. Your employer needs this number to retrieve your electronic tax information and calculate your payroll taxes correctly.
However, the Steuer-ID is used for much more than employment. It is also required for:
- starting a new job
- filing an income tax return
- using the ELSTER online tax portal
- communicating with the Finanzamt (German tax office)
- administering certain government benefits
- many other tax-related matters.
For this reason, the Steuer-ID is one of the most important personal identification numbers in Germany and should be kept together with your other important documents.
What Happens After Your Anmeldung?
Once you have registered your address in Germany (Anmeldung), most of the process takes place automatically. You do not need to complete any additional applications or request your Steuer-ID separately.
The process usually works as follows:
Arrival in Germany
Residence Registration (Anmeldung)
The local authority forwards your data
Federal Central Tax Office (Bundeszentralamt für Steuern – BZSt)
Your Steuer-ID is assigned
An official letter is sent to your registered address
In most cases, all you need to do after that is wait for the letter to arrive.
It is important to understand that the Bürgeramt (Residents' Registration Office) does not issue your Steuer-ID. Its role is simply to register your residence and forward your information to the relevant authorities.
The Bundeszentralamt für Steuern (BZSt) – Germany's Federal Central Tax Office – is responsible for assigning your personal tax identification number.
The BZSt creates your individual Steuer-ID and sends an official notification letter to the address you provided during your residence registration.
How Long Does It Take to Receive Your Steuer-ID?
There is no fixed timeframe, as processing times vary depending on the region and the workload of the authorities.
In practice, most people receive their Steuer-ID letter within a few days to a few weeks after completing their residence registration (Anmeldung).
If your letter has not arrived yet, it does not necessarily mean that something is wrong. In larger cities, processing your information may simply take longer.
However, if several months have passed and you still have not received your Steuer-ID, you should contact the Federal Central Tax Office (Bundeszentralamt für Steuern – BZSt) to check the status of your case or request that the notification be sent again.
Does Every Family Member Receive Their Own Steuer-ID?
Yes.
This is one of the most common questions families have after moving to Germany.
If several people are registered at the same address, each family member receives their own individual Steuer-ID.
This includes:
- adults
- spouses
- children
- newborn babies.
Age does not matter. Every individual registered in Germany is assigned their own unique 11-digit tax identification number.
This means that a family of four will receive four separate letters, each containing the Steuer-ID of the respective family member.
What Information Is Included in the Steuer-ID Letter?
Once you receive your letter from the Federal Central Tax Office (BZSt), you should carefully check that all personal information is correct.
The letter usually includes:
- your full name
- your date of birth
- your 11-digit Steuer-ID
- information about how the tax identification number is used.
After receiving the letter, make sure to verify that:
- ✔ your name is spelled correctly
- ✔ your date of birth is correct
- ✔ the letter is addressed to you
- ✔ your 11-digit Steuer-ID is shown correctly.
If you notice any errors in your personal information, you should contact the responsible authority as soon as possible so that the information can be corrected.
What Should You Do After Receiving Your Steuer-ID?
Once your letter has arrived, it is a good idea to complete a few simple steps.
Checklist
- ✅ Check that all your personal information is correct.
- ✅ Make sure your 11-digit Steuer-ID is listed correctly.
- ✅ Keep the original letter together with your other important documents.
- ✅ Write down or securely store your Steuer-ID so you can easily access it when needed.
- ✅ If you have already started working, provide your Steuer-ID to your employer if you have not done so already.
This is one of those official letters that you should never throw away. Although your Steuer-ID never changes, the original notification may be useful later for various administrative procedures.
Where Can You Find Your Steuer-ID?
Although most people first see their Steuer-ID in the official letter from the Federal Central Tax Office (BZSt), this is not the only document that contains it.
If you have kept the original letter, it will be the quickest way to find your tax identification number.
If the letter is no longer available, you can also find your Steuer-ID in other documents, such as:
- your Lohnsteuerbescheinigung (Annual Wage Tax Certificate)
- your Einkommensteuerbescheid (Income Tax Assessment Notice)
- certain documents available through the ELSTER online tax portal.
If none of these documents are available, you can request a replacement notification from the Federal Central Tax Office (BZSt).
What Should You Do If Your Steuer-ID Letter Has Been Lost?
Losing the original letter does not mean you will receive a new tax identification number.
Your Steuer-ID remains the same for your entire life.
If the original notification has been lost, you can request that a replacement letter be sent to you.
It is important to know that:
- you will not receive a new Steuer-ID
- for security reasons, the tax identification number is generally not disclosed by phone or email
- the replacement notification will be sent to your registered address.
Can You Start Working Without a Steuer-ID?
Yes.
This is one of the most common questions among people who have recently moved to Germany.
If you have already found a job but are still waiting for your Steuer-ID letter, you can often start working before receiving your tax identification number.
In most cases, your employer will simply ask you to provide your Steuer-ID as soon as you receive it.
So there is usually no need to worry if the letter has not arrived by your first working day.
However, you should provide your Steuer-ID to your employer as soon as possible once you receive it.
What Happens If You Move to a New Address?
Many people believe that moving to another city means they will receive a new Steuer-ID.
This is not the case.
If you move to a new address within Germany, you must register your new residence (Anmeldung) again, but your Steuer-ID remains exactly the same.
Only your registered address is updated in the official records.
The same rule applies if you move to another German federal state.
What Happens If You Return to Germany After Several Years?
If you have previously lived in Germany and were already assigned a Steuer-ID, you will not receive a new tax identification number when you return.
The same Steuer-ID that was originally assigned to you will continue to be used.
For this reason, it is a good idea to keep a record of your Steuer-ID even after leaving Germany.
Steuer-ID, Steuernummer, Steuerklasse and Sozialversicherungsnummer – What's the Difference?
These four terms are often confused, even though they refer to completely different things.
Steuer-ID vs. Steuernummer
| Steuer-ID | Steuernummer |
|---|---|
| Belongs to an individual | Belongs to a specific tax case |
| Assigned automatically | Issued by the Finanzamt |
| Always consists of 11 digits | Format varies by region |
| Never changes | May change over time |
| One per person | One person may have several |
Simply put:
A Steuer-ID identifies a person.
A Steuernummer identifies a tax case or tax account.
Steuer-ID vs. Steuerklasse
These two terms are probably confused more often than any others.
| Steuer-ID | Steuerklasse |
|---|---|
| Personal identification number | Tax class |
| Assigned once | May change during your lifetime |
| Never changes | Depends on your family and employment status |
| Identifies you | Determines how payroll tax is calculated |
It is also important to know that your Steuerklasse is not shown in your Steuer-ID letter.
Instead, your employer retrieves your current tax class electronically using your Steuer-ID.
Steuer-ID vs. Sozialversicherungsnummer
These two numbers also serve completely different purposes.
| Steuer-ID | Sozialversicherungsnummer |
|---|---|
| Used for tax administration | Used for the social security system |
| Issued by the BZSt | Issued by the German Pension Insurance system |
| Used for tax matters | Used for pension, health insurance and other social security purposes |
| Remains valid for life | Usually also remains unchanged |
If your employer asks for both numbers, that is perfectly normal—each serves a different legal purpose.
The Most Common Mistakes
People who have recently moved to Germany often make the same mistakes.
- Thinking they must apply for their Steuer-ID themselves.
- Confusing the Steuer-ID with the Steuernummer.
- Confusing the Steuer-ID with the Steuerklasse.
- Throwing away the original letter without realizing its importance.
- Believing they will receive a new Steuer-ID after moving.
- Assuming children do not receive their own Steuer-ID.
- Forgetting to provide their Steuer-ID to their employer.
Most of these misunderstandings simply arise because Germany's tax system contains several similar-sounding terms.
Frequently Asked Questions (FAQ)
Are the Steuer-ID and the Steuernummer the same thing?
No.
The Steuer-ID is your personal tax identification number. It is assigned once in a lifetime and identifies you as an individual within the German tax system.
The Steuernummer, on the other hand, is issued by the Finanzamt for tax administration. It is used, for example, when filing tax returns or for self-employment and business activities.
How many digits does a Steuer-ID have?
A Steuer-ID always consists of 11 digits.
Is the Steuer-ID valid for life?
Yes.
It is assigned only once and normally remains unchanged for your entire lifetime.
Will I receive a new Steuer-ID after moving to another city?
No.
Only your registered address changes. Your Steuer-ID stays exactly the same.
Does the Steuer-ID change if I move to another federal state?
No.
Moving to another German federal state has no effect on your Steuer-ID.
Does the Steuer-ID change if I change my surname?
No.
If you change your surname, for example after getting married, your Steuer-ID remains unchanged.
Do children receive their own Steuer-ID?
Yes.
Every child receives their own personal Steuer-ID regardless of age.
Do newborn babies also receive a Steuer-ID?
Yes.
Newborn babies are also assigned their own Steuer-ID after they are registered in Germany.
Do foreign nationals receive a Steuer-ID?
Yes.
Once a foreign national is registered in Germany, they are assigned a Steuer-ID. Citizenship does not matter.
Can I start working without a Steuer-ID?
In many cases, yes.
If you have not yet received your tax identification number, your employer will usually ask you to provide it later, as soon as your official letter arrives.
Do I need to apply for a Steuer-ID myself?
Usually not.
After your residence registration (Anmeldung), your Steuer-ID is normally assigned automatically.
Where is the Steuer-ID letter sent?
It is sent to the address you provided during your residence registration (Anmeldung).
What should I do if my letter never arrives?
If several weeks or even months have passed and you still have not received your letter, contact the Federal Central Tax Office (BZSt).
If necessary, you can request that the notification be sent again.
What if I lose the letter?
You will not receive a new Steuer-ID.
Instead, you can request a replacement notification from the Federal Central Tax Office (BZSt).
Can I obtain my Steuer-ID by phone?
Usually not.
For security and data protection reasons, the tax identification number is generally not provided by phone or email.
Can I receive a new Steuer-ID?
No.
Every individual is assigned only one Steuer-ID, which remains valid for life.
Can one person have two Steuer-IDs?
No.
Every individual in Germany has only one personal Steuer-ID.
Does my employer need my Steuer-ID?
Yes.
Your employer uses your Steuer-ID to retrieve your electronic tax information and calculate your payroll taxes correctly.
Is the Steuer-ID shown on my payslip?
That depends on your employer's payroll system.
Some payslips display the Steuer-ID, while others do not.
Do self-employed people and business owners also have a Steuer-ID?
Yes.
Self-employed individuals and Gewerbe owners continue to use the same personal Steuer-ID they were originally assigned.
In addition, the Finanzamt issues a Steuernummer, and in certain situations an VAT Identification Number (Umsatzsteuer-Identifikationsnummer – USt-IdNr.) may also be issued, for example for VAT transactions within the European Union.
Does a company have its own Steuer-ID?
No.
A Steuer-ID is assigned only to individuals.
Businesses use other identifiers, such as a Steuernummer, and in some cases a VAT Identification Number (USt-IdNr.).
Is a Steuer-ID required for ELSTER?
Yes.
Your Steuer-ID is one of the main identification details required when creating an ELSTER account and filing tax returns online.
Is the Steuer-ID an identity document?
No.
The Steuer-ID is a tax identification number. It does not replace a passport, identity card or residence permit.
Who should I share my Steuer-ID with?
You should provide your Steuer-ID only when it is genuinely required, for example to:
- your employer
- the Finanzamt
- the Federal Central Tax Office (BZSt)
- a bank or another institution if required by law.
Never publish your Steuer-ID online or disclose it to unknown individuals without a legitimate reason.
Is my Steuer-ID cancelled if I leave Germany?
No.
If you return to Germany years later, you will normally continue using the same Steuer-ID that was originally assigned to you.
Can I look up my Steuer-ID online?
No.
For security reasons, there is no public online database where you can search for your Steuer-ID using your personal information.
If you no longer know your number, check your previous documents or request a replacement notification from the Federal Central Tax Office (BZSt).
Is a Steuer-ID reused after someone dies?
No.
A Steuer-ID is permanently linked to one specific individual. After a person's death, it is never reassigned or reused.
Useful Authorities and Institutions
| Authority | Responsibility |
|---|---|
| Bürgeramt | Registers your place of residence (Anmeldung) and forwards your information to the relevant authorities. |
| Federal Central Tax Office (Bundeszentralamt für Steuern – BZSt) | Assigns and manages the Steuer-ID, sends the official notification letter, and issues replacement notifications if the original is lost. |
| Finanzamt | Administers taxes, issues the Steuernummer, processes tax returns and provides tax-related assistance. |
| ELSTER | Germany's official online portal for filing tax returns and communicating electronically with the Finanzamt. |
Conclusion
The Steuer-ID is one of the most important identification numbers in Germany. It is automatically assigned to everyone who registers their residence in Germany, remains valid for life, and is used in almost every tax-related matter.
To avoid unnecessary problems, keep the official letter from the Federal Central Tax Office (BZSt) in a safe place, provide your Steuer-ID to your employer when required, and do not confuse it with the Steuernummer, Steuerklasse, or the VAT Identification Number (USt-IdNr.).
If your next question is how German payroll taxes are calculated and what the different tax classes (Steuerklassen) mean, we also recommend reading our comprehensive guide to Steuerklasse in Germany, which naturally continues this topic and helps you better understand the German tax system.
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