If you are applying for German citizenship, Berlin is where the process has changed most dramatically. The city's immigration authority granted a record 39,034 citizenships in 2025, almost double the previous year (21,811) and four times the 2023 figure (9,041), after rebuilding its entire naturalisation system from the ground up. For expats navigating the process, knowing what Berlin's new system looks like, how long it takes, and what can go wrong is essential before you apply.
Since January 2024, responsibility for naturalisations in Berlin has shifted from over-stretched district offices to a purpose-built unit within the newly created Landesamt für Einwanderung, or LEA. Staff numbers were nearly doubled, and most steps, from fee payment to document upload, are now digital. There are no longer any in-person advisory appointments, and identity verification is carried out digitally. Security standards have been described as "significantly higher", with potential grounds for exclusion now identified at an early stage. The overhaul allowed officials to clear a backlog that had been nearing 40,000 files just two years ago.
The overhaul has made a measurable difference to waiting times. According to LEA Director Engelhard Mazanke, digital workflows and weekend oath ceremonies have cut Berlin's average citizenship processing time from 24 months down to 12 months, a significant improvement that directly benefits applicants with complete and accurate documentation.
The record approval numbers tell only part of the story. Interior State Secretary Christian Hochgrebe revealed that 1,931 applications, or 4.9 percent of the total, were rejected in 2025, roughly one in every 20. While that figure is relatively small compared to the overall volume processed, it is a meaningful reminder that Berlin's new system is not just faster, it is also significantly stricter.
According to Hochgrebe, the most common reasons for rejection include missing or incorrect information, forged documents, and contradictions in applicants' statements. Suspected forgeries, including fake language certificates or integration test results, are automatically referred to prosecutors. Germany has seen an increasing number of forged language certificate cases uncovered across several federal states, prompting the government to introduce strict new measures last year.
Anyone who deceives during the naturalisation process or intentionally provides incomplete information will now be barred from applying for German citizenship again for up to ten years. The ban applies not only to revocations of citizenship already granted, but also to cases where the responsible authority determines during ongoing proceedings that an applicant has fraudulently deceived, threatened, or bribed officials, or intentionally provided incomplete or false information.
A rejection is not necessarily the end of the road. Here is what expats should consider:
Review your rejection letter: When your application is rejected, you will automatically receive a formal written letter explaining the specific reasons. Read it carefully before taking any further steps.
Check for errors: In some cases, rejections are the result of administrative errors or missing documents rather than fundamental eligibility issues. Review the rejection letter carefully against your submitted documents.
Reapply once issues are resolved: If your application was rejected due to missing documents or incorrect information, you can reapply once those issues have been corrected. There is no permanent ban on reapplying in most cases.
Seek legal advice: If you believe your rejection was unjust, you have the right to challenge the decision through an administrative court, known as a Verwaltungsgericht. An immigration lawyer can advise you on whether an appeal is worth pursuing and guide you through the process.
Do not attempt to submit forged documents: Forgeries are referred directly to prosecutors, and under Germany's new Anti-Fraud Law, anyone found to have deceived during the naturalisation process, including submitting fake language certificates or providing intentionally incomplete information, will be banned from applying for German citizenship again for up to ten years.
The surge in approvals, four times the 2023 figure, shows that Berlin's new centralised system is processing applications far faster than before. The digitalisation of the process means applications are assessed more efficiently, but also more rigorously. Security checks are more thorough, and inconsistencies are caught earlier. For expats who have their documentation in order and meet all eligibility requirements, the streamlined process is good news. For those who cut corners, the risks are now significantly higher.
Germany is also debating to undergo a national citizenship law overhaul later this year, which could affect eligibility criteria and processing timelines. Staying informed about these changes will be essential for anyone planning to apply.
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