What the law says right now
The Staatsangehörigkeitsgesetz was reformed in 2024 and adjusted again in 2025. As of today, the standard path to naturalization looks like this:
Five years of legal residence. German at level B1 of the European framework, the CEFR. A passed citizenship test. A clean record and the ability to support yourself. Dual citizenship is now generally allowed, which removed the hardest choice many long-term residents faced.
The much-discussed 3-year fast track, which rewarded special integration and C1 German, was abolished in October 2025. If you read about it on another site, that page is out of date. The only shortened path that remains is for spouses of German citizens.
So the language bar for citizenship is B1. Not C1, not fluency, not accent-free German. B1.
What B1 actually means
B1 means you can handle everyday life in German on your own. You can follow a conversation about work, family or news if people speak reasonably clearly. You can explain what happened at the doctor, complain to your landlord, and write a short formal letter that gets the job done.
What B1 does not mean: understanding Tatort without subtitles, reading Kafka, or winning an argument with your Sachbearbeiter. That comes later, and you do not need it for the passport.
If you are not sure where you stand, my free 20-minute level check tells you, across reading, listening, speaking and writing.
Which certificate counts
The authorities accept several proofs of B1. The most common are the DTZ, the Deutsch-Test für Zuwanderer taken at the end of an Integrationskurs, and the general B1 certificates from Goethe and telc. A German school degree or completed German vocational training also counts.
If you take the certificate route, choose the exam that fits your situation, book it early because slots fill up months ahead in the big cities, and prepare for the format, not just the language. My B1 exam preparation course covers Goethe and telc B1 part by part.
The Integrationskurs question
Many people assume the Integrationskurs is the default way to B1. It is the cheapest way, and for some people the social side is worth a lot. But look at the official numbers before you build your citizenship timeline on it: roughly half of all participants do not reach B1 on the final test. I went through the BAMF statistics in detail here.
The reason is not that the teachers are bad. It is that a class can only move at one speed, and that speed is set by the group, not by you. If you miss three weeks because of work, the class does not wait.
Self-paced learning turns that around. You repeat what you personally need, skip what you already know, and keep going through busy months at whatever pace you can manage. That is exactly what my online German courses are built for: a structured path from zero to B1 and beyond, with every skill trained in one place.
How long does it take to reach B1
Honest answer: several hundred hours of real engagement with the language, spread over months, not weeks. Anyone promising you B1 in six weeks is selling something other than German. I go through realistic timelines level by level in How long until I am fluent in German.
The good news is that citizenship timelines are long anyway. If you are two or three years into your five years of residence, starting now means arriving at your Einbürgerung appointment with the certificate long since done, instead of scrambling for an exam slot while your application waits.
The path, concretely
First, find your real starting level with the free level check. Second, work through the courses from wherever you actually stand. Third, when your German approaches B1, switch part of your time to exam training and book the exam. Fourth, hand in the certificate with your application and never think about language requirements again.
This article describes the legal situation as of July 2026 and is not legal advice. Rules change, and your local Einbürgerungsbehörde has the final word on your case. Verify the current requirements with them before you apply.
