Germany Naturalization 2026: Which Language Certificate Do You Need?
Published May 2026 · Editorial review by Prep2go.study
On Prep2Go this topic clusters with how to pass DTZ B1 (prep playbook), the DTZ structure & scoring overview, the DTZ B1 guide hub, EU citizenship language rules 2026, and CIPLE vs DELE vs DELF vs CELI compared (Germany sits beside that comparison).
What Level of German Do You Need for Citizenship?
Under Germany's reformed Nationality Act (Staatsangehörigkeitsgesetz, StAG), which came into force in 2024, the language requirement for naturalization is B1 on the Common European Framework (CEFR). This applies regardless of how long you've lived in Germany or where you're from.
B1 is an intermediate level — not fluency, but the ability to handle everyday situations: at the doctor's, at the Ausländerbehörde, in written communication with landlords and employers.
The 2024 reform also reduced the required residency period from 8 to 5 years (3 years in exceptional cases). More people than ever are now eligible for citizenship — and the language requirement is the hurdle most applicants face first.
Which Certificates Are Accepted?
The following are commonly recognised as proof of B1 German for naturalization (verify your individual file):
| Certificate | Provider | Typical path |
|---|---|---|
| DTZ (Deutsch-Test für Zuwanderer) — B1 outcome | telc / BAMF integration course | After integration course |
| Goethe-Zertifikat B1 | Goethe-Institut | Independent exam centre |
| telc Deutsch B1 | telc | Independent exam centre |
| Zertifikat Integrationskurs | BAMF | Integration course + DTZ (B1) + LiD passed |
| German school-leaving certificate | German schools | If you studied in Germany |
| Completed vocational training in Germany | — | If programme included sufficient German instruction |
| Completed university degree in Germany | — | If programme included sufficient German instruction |
Important: Always confirm acceptance with your local Ausländerbehörde — requirements can vary slightly by federal state (Bundesland).
Option 1: DTZ — The Integration Course Route
The Deutsch-Test für Zuwanderer (DTZ) is the standard exam taken at the end of a BAMF-approved integration course (Integrationskurs). If you are currently in or have completed an integration course, the DTZ is often your natural path.
Official exam parts and timings (written paper 100 minutes total):
| Part | German name | Time (guide) | Notes |
|---|---|---|---|
| Listening | Hören | ~25 minutes | 20 items; combined with Lesen for one receptive grade on your certificate |
| Reading | Lesen | 45 minutes | 25 items across five tasks (grammar-in-context appears inside reading tasks) |
| Writing | Schreiben | 30 minutes | One scored production task |
| Speaking | Sprechen | ~15 minutes | Paired oral exam |
The DTZ is a dual-level exam: depending on your performance, you receive either an A2 or B1 profile on your certificate. For citizenship, you need B1 proof — confirm how your authority reads partial profiles.
Scoring: You do not get one headline "percentage grade" on the DTZ certificate. Listening and reading are evaluated together; writing and speaking are scored separately using level descriptors. For an overall B1 outcome on the certificate, telc/BAMF rules normally require B1 in Sprechen plus B1 in at least one written block — either the combined Hören/Lesen paper or Schreiben. Always confirm details with your course provider using the current handbook.
Cost: Often roughly €150–180 when booked via a course or test centre — fees vary. If you pay the standard Integrationskurs contribution and finish successfully (DTZ + LiD where required), you may reclaim 50% of your contribution through BAMF's official refund process — check deadlines and forms.
Who this suits: Anyone attending or completing a BAMF integration course who wants the exam that matches that curriculum.
👉 Practice for DTZ B1 on Prep2Go.
Option 2: Goethe-Zertifikat B1
The Goethe-Zertifikat B1 is issued by the Goethe-Institut. It is internationally recognised and widely accepted for naturalization in Germany.
What makes it different from DTZ:
- Can be taken independently — no integration course required
- Available at Goethe centres worldwide, including outside Germany
- Often feels more "general German" than DTZ — less tightly tied to integration-course themes
- Modular options exist for some formats — confirm at registration whether you need all parts in one sitting
Cost: Approximately €190–220, varying by country and centre.
Who this suits: Candidates who did not complete a BAMF integration course, or who want broad international recognition beyond Germany.
Option 3: telc Deutsch B1
telc (The European Language Certificates) administers the DTZ — but telc Deutsch B1 is a separate general-purpose B1 exam accepted for German citizenship.
Key differences from DTZ:
- Not tied to the integration course system
- Broad network of telc-licensed centres
- Different task design from DTZ — confirm format with your centre's sample papers
Cost: Often €120–180 depending on the centre.
Who this suits: Candidates who want a standalone B1 certificate outside the integration-course path.
DTZ vs Goethe B1 vs telc B1: Which Should You Choose?
| DTZ | Goethe B1 | telc B1 | |
|---|---|---|---|
| Citizenship acceptance | ✅ | ✅ | ✅ |
| Integration course context | Typical | No | No |
| Available outside Germany | Limited | Worldwide | Widely |
| Exam focus | Everyday life in Germany | General German | General German |
| Dual level (A2 or B1 outcome) | ✅ | ❌ | ❌ |
| Typical cost band | €150–180 | €190–220 | €120–180 |
| International recognition | Germany-focused | Very strong | Strong |
Bottom line:
- In an integration course → usually DTZ first.
- Not in an integration course, staying in Germany → often telc Deutsch B1 or Goethe B1.
- Want maximum international portability → Goethe B1 can be the safer long-term credential.
What If You Already Have a German Degree or School Certificate?
If you completed school, vocational training, or a university degree in Germany, you may not need a separate language exam — your qualification can suffice as proof. Confirm with your Ausländerbehörde before investing months in exam preparation.
The Integrationskurs Certificate: DTZ + LiD
If you complete a full BAMF integration course and pass the DTZ at B1 and the Life in Germany test (Leben in Deutschland, LiD), you receive the Zertifikat Integrationskurs. That bundle proves both language and civic knowledge for integration purposes.
LiD format (standard version): 33 multiple-choice questions; you normally need 17 correct answers to pass — confirm any updates with BAMF.
Naturalisation fees and residency timelines depend on your whole case under StAG — integration achievements may matter in some scenarios, but never treat blog summaries as legal advice.
How Long Does It Take to Reach B1?
- Starting from zero German: full BAMF integration course — roughly 600 lesson units, often ~7–12 months depending on schedule and alphabetisation track.
- Self-study from solid A2 to exam-ready B1: commonly ~8–16 weeks of focused work.
- Already at A2 and targeting DTZ: an 8-week intensive plan is realistic for many candidates — if listening keeps pace with reading.
👉 Free DTZ mock test — see your level now.
Frequently Asked Questions
Does my B1 certificate expire?
Certificates from Goethe, telc, and DTZ generally have no formal expiry date for citizenship purposes. Very old certificates may occasionally be questioned — ask your authority if yours is many years old.
Can I use a certificate from another country?
Goethe and telc certificates are usually accepted regardless of where you sat the exam. DTZ is aimed at Germany's integration pathway.
What if I only reached A2 on the DTZ?
A2 is not enough for naturalisation under the usual B1 rule. You can retake the DTZ or pursue Goethe/telc B1 instead.
Is there a minimum score I need?
For DTZ you receive level classifications — not one headline percentage. Goethe and telc use scaled scoring with provider-defined pass thresholds.
Do children need a B1 certificate too?
Minor children naturalised with a parent are often exempt from the adult language requirement — rules vary by age. Confirm with your Ausländerbehörde.
Start Preparing for DTZ B1 Today
If you're on the integration-course path, Prep2Go focuses on DTZ-format reading and listening, writing templates, speaking prompts, and timed mocks with skill-by-skill feedback.
Start your free DTZ mock test, open the DTZ B1 hub, and browse the German exam vocabulary deck.
Sources: BAMF — Naturalization in Germany · Make it in Germany — Naturalization · telc — DTZ · Goethe-Institut B1 · einbuergerung.de
Information current as of May 2026. Requirements may change — always verify with your local Ausländerbehörde before submitting your application.