Foreigners’ office / Immigration office

What is the Ausländerbehörde in Germany? A Comprehensive Guide*

The Ausländerbehörde (Foreigners’ Office / Immigration Office) is one of the most important public institutions in Germany for migrants and newcomers. It is responsible for residence matters, work permits, visas and related legal procedures, and provides essential information for staying in Germany legally. In this comprehensive guide, we explain in detail the tasks of the Ausländerbehörde, how to deal with it (according to the latest information up to 2025), and what requirements and steps you need to follow to secure a lawful and safe stay in Germany.

1. What is the Ausländerbehörde?

The Ausländerbehörde is the authority responsible for foreigners’ residence issues at the level of the city, municipality or district (Landkreis) in Germany. It is usually subordinated to a regional immigration authority at the federal state (Land) level and works closely with other institutions such as the Federal Office for Migration and Refugees (BAMF), the Federal Police and the Federal Employment Agency. Its core mission is to regulate the stay of foreign nationals in Germany – whether for study, work, asylum or family reunification.

Other names for the Ausländerbehörde

Depending on the region, it may also be called Ausländeramt, Ausländerbüro or Einwanderungsbehörde (Immigration Office). These terms generally refer to similar functions and responsibilities.

2. Main functions of the Ausländerbehörde

Issuing residence permits

Short-term residence (visa) and long-term residence (Aufenthaltserlaubnis or Niederlassungserlaubnis)
Including work permits for employees and skilled workers, as well as residence titles for students

Extending and changing residence status

Renewal of existing residence titles before they expire
Changing the purpose of stay, e.g. from studies to employment, or from visitor status to student status, as far as permitted by law

Family reunification

Assessing and issuing residence permits for spouses and children who want to join a family member legally residing in Germany
Checking requirements such as sufficient income, adequate living space and health insurance

Asylum and refugee-related matters

Cooperation with the Federal Office for Migration and Refugees (BAMF) in asylum procedures
Implementing decisions on deportation or removal after a negative asylum decision or expiry of the residence title

Monitoring and control

Ensuring that foreign nationals comply with the conditions of their residence title (e.g. reporting address changes, work restrictions)
Dealing with cases of irregular or unlawful stay

Issuing travel documents

In certain cases, such as recognised refugees or stateless persons, issuing a travel document (Reiseausweis) as a substitute for a national passport

3. When do you have to go to the Ausländerbehörde?

Upon first arrival in Germany (for long-term stay)

If you plan to stay in Germany for more than three months (e.g. for work, study or family reasons), you must register your address (Anmeldung) at the local registration office and then apply for a residence title at the Ausländerbehörde.

To extend your residence permit

You should request an appointment two to three months before your current residence title expires.
The office will reassess your situation and the legal requirements (income, studies, work contract, etc.).

To change the purpose of your stay

For example, when switching from a student residence permit to a work permit after graduation, or when changing employer or type of employment.

For marriage and family reunification matters

When bringing your spouse or children to Germany, the Ausländerbehörde is involved in checking the conditions and issuing the necessary residence permits.

In case of loss or damage of residence documents

If your residence card, visa sticker or other important documents are lost or damaged, the Ausländerbehörde must be informed so that replacement documents can be issued.

4. Key documents required by the Ausländerbehörde

Depending on your situation and purpose of stay, you may need some or all of the following:

Valid passport
Proof of registered address (Meldebescheinigung) or rental contract
Proof of income (employment contract, payslips, bank statements)
Proof of health insurance coverage
University admission or enrolment certificate (for students)
Work contract or job offer (for employees and skilled workers)
Language certificate (for certain types of residence permits)
Completed application form (downloaded online or provided by the office)

Note: The exact requirements can vary between federal states, cities and the type of residence permit. Always check your local Ausländerbehörde’s website for an up-to-date list of required documents.

5. How to deal with the Ausländerbehörde – step by step

1) Book an appointment

In most German cities, you must book an appointment in advance, usually via an online portal or by phone.
Without an appointment, you may face very long waiting times or may not be served at all.

2) Prepare your documents

Download forms and information sheets from the official website.
Make sure foreign-language documents are translated into German by a sworn translator if required.

3) Attend the appointment

Arrive early and bring all original documents plus copies.
A short interview may take place to clarify your personal situation and purpose of stay.

4) Wait for the decision

In some cases, the residence permit is applied for immediately and issued later as an electronic residence permit card (eAT).
Processing can take from a few days to several weeks.

5) Keep your status updated

Inform the Ausländerbehörde promptly if your address, job, marital status or main purpose of stay changes.

6. Recent developments up to 2025

Digitalisation of services

Many federal states have expanded online portals for booking appointments, downloading forms and, in some cases, submitting applications online.
Email and secure online communication channels speed up clarifications and requests.

Reforms in skilled labour immigration

Due to a shortage of skilled workers, immigration rules for qualified professionals have been simplified, including points-based systems and extended opportunities for job-seeking residence.
The Ausländerbehörde works closely with the Federal Employment Agency to accelerate procedures.

Stricter checks in family reunification

In some regions, there is closer scrutiny of documents and family relationships, especially where marriage fraud is suspected.
Authorities carefully review income, living space and health insurance.

Improved translation and language support

Many offices provide interpreters or multilingual information materials to reduce misunderstandings.

Enhanced data exchange with other authorities

Closer digital cooperation with the police, registration offices and BAMF to detect irregular stays or forged documents more quickly.

7. Common issues – and how to avoid them

Long waiting times:
Appointments may be booked out weeks or months in advance, especially in big cities. Plan early, particularly if your current permit is expiring.
Incomplete documentation:
One of the main reasons for delays or refusals is missing paperwork. Always follow the official checklist and bring extra supporting documents if possible.
Failing to report changes:
Moving to a new address or changing jobs without informing the authorities can create legal problems later on.
Language barriers:
If your German is limited, take a German-speaking friend with you or arrange an interpreter to ensure clear communication.

8. Practical tips for using the Ausländerbehörde effectively

Read the official information thoroughly before your appointment.
Keep your financial documents well organised and up to date.
Stay informed about changes in immigration and residence laws.
Store digital copies (PDF) of all important documents in a safe place.
Be polite, patient and honest when dealing with staff – this often makes the process smoother.

9. Conclusion

The Ausländerbehörde is the key authority for foreign nationals living in Germany. It decides on the granting, renewal and modification of residence permits, processes family reunification, and plays a central role in the legal organisation of migration.

To manage your stay successfully, you should plan ahead, prepare complete documentation and keep an eye on legal updates. With ongoing digitalisation and reforms in immigration law up to 2025, some procedures have become more efficient, but careful preparation and compliance with the rules remain essential to avoid problems or delays – and to maintain your legal status.

* Our editorial team strives to provide accurate information based on thorough research and multiple sources. However, errors or incomplete data can never be fully excluded. The information in this article should therefore be regarded as an initial reference only; for binding and up-to-date information, always contact the competent authorities and official bodies.