German Language Requirement for Naturalization (B1) 2026: Recognized Certificates & Exemptions

Anyone seeking naturalization under § 10 of the Nationality Act (Staatsangehörigkeitsgesetz, StAG) must demonstrate German language skills at level B1 of the Common European Framework of Reference for Languages. Recognized certificates include, in particular, the Goethe-Zertifikat B1, telc Deutsch B1, the ÖSD Zertifikat B1, and the Deutsch-Test für Zuwanderer (DTZ) (German Test for Immigrants) with a B1 result; higher certificates (B2, C1, C2) satisfy the requirement all the more. A German general-education school diploma likewise fulfills the requirement in administrative practice. The 2024 reform newly introduced two forms of relief: the hardship clause under § 10 para. 4a StAG (oral everyday communication suffices where the acquisition of B1 is permanently and substantially impeded) and the guest-worker facilitation under § 10 para. 4 sentence 3 StAG (oral communication suffices for the former recruitment generation). The Act Amending the Nationality Act and Further Provisions of 27 October 2025 (BGBl. 2025 I no. 256, in force since 30 October 2025) did not touch the language requirement; it merely abolished the previously available three-year naturalization track, which would have required a C1 level.

The basic statutory provision is kept brief: § 10 Absatz 1 Nummer 6 StAG requires that the applicant "possesses sufficient knowledge of the German language." What "sufficient" means is specified in § 10 Absatz 4 Satz 1 StAG: "The requirements of paragraph 1 sentence 1 no. 6 are met if the foreign national fulfills the requirements of a language examination at level B 1 of the Common European Framework of Reference for Languages."

What does B1 CEFR mean? The Common European Framework of Reference for Languages (German abbreviation GER, English CEFR) is a standard devised by the Council of Europe that measures language skills on a six-level scale from A1 (beginner) to C2 (near-native). Levels A1 and A2 describe basic language use, B1 and B2 independent use, and C1 and C2 proficient use. At level B1, learners are able to understand the main points of familiar matters relating to work, school, or leisure; to cope with most everyday and travel situations; to write simple connected texts on familiar topics; and to describe experiences, events, or dreams.

Why B1, not A2 and not C1? In setting the threshold, the legislature chose B1 as a middle standard that enables language use in everyday life, work, and dealings with authorities without an intermediary, without demanding an academically precise level. A2 is sufficient for tourist use but would barely support independent participation in professional and administrative processes; C1 would be an academic hurdle that would create a barrier for a large share of the working population regardless of their integration. The B1 threshold is consistent under EU law: the Netherlands, Austria, and several Scandinavian countries apply similar thresholds.

Four skills. A B1 examination regularly covers four skills — listening comprehension, reading comprehension, written expression, and oral expression — which most providers allow to be taken in modules. Not all modules need to be passed at the same time; modular providers allow individual modules to be retaken separately. What matters for naturalization is that, in the end, a certificate covering all four skills at B1 level is available.

Which certificates are accepted as proof of language proficiency does not follow from an exhaustive list in a regulation, but from the general interpretation of § 10 para. 1 no. 6 in conjunction with para. 4 sentence 1 StAG: any certificate that proves the B1 standard under CEFR and is issued by an established examination institution is recognized. In practice, these are primarily the following certificates, which are accepted nationwide without case-by-case discussion.

Goethe-Zertifikat B1. The Goethe-Institut is the Federal Republic's official language and cultural institution abroad and conducts examinations worldwide. The Goethe-Zertifikat B1 tests the four skills in four separate modules that can be taken individually or bundled — for example, someone who fails only the writing module can retake it individually without having to redo the remaining modules. The certificate itself has no expiry date; from the naturalization authority's perspective, however, it counts as reliable proof of current knowledge if it is not older than a few years — the specific assessment varies by authority.

telc Deutsch B1. telc gGmbH is a subsidiary of the German Adult Education Association and operates a dense network of examination centers at German adult education centers (Volkshochschulen). The written examination covers listening comprehension, reading comprehension, language building blocks (vocabulary/grammar), and writing in a continuous block of 150 minutes without a break. The oral examination is taken in pairs and consists of three parts: an introductory conversation, a topic discussion, and a joint problem-solving task. Those who complete an integration course at an adult education center can often take the telc examination directly at the course location.

ÖSD Zertifikat B1. The Austrian Language Diploma (Österreichisches Sprachdiplom, ÖSD) is a state-recognized examination system based in Vienna. It is recognized in Germany as equivalent to the Goethe certificate, but has a somewhat different thematic emphasis with more frequent references to Austrian realities. The examination is organized modularly; individual modules can be taken separately and accumulated.

Deutsch-Test für Zuwanderer (DTZ). The DTZ is a test designed specifically for immigrants that is also the standard final examination of the nationally offered integration course. It is designed as a scaled test at levels A2 and B1: the result indicates which level was achieved in which skill. For naturalization, the result must show B1 in all four skills. The DTZ has been conducted nationwide by the Society for Academic Study Preparation and Test Development (g.a.s.t.) on behalf of the Federal Office for Migration and Refugees (BAMF) since 1 January 2023.

Higher levels. Anyone who holds a certificate above B1 — such as the Goethe-Zertifikat B2 or C1, telc B2, or ÖSD C1 — satisfies the language requirement all the more. A separate B1 certificate is not additionally required. The university-admission examinations TestDaF (level range B2.1–C1.2) and DSH (typically B2/C1) are also recognized nationwide in practice.

Registration and examination date. Registration for the B1 examination is done directly with the respective provider — the Goethe-Institut, a telc examination center (often an adult education center), an ÖSD examination center, or an integration-course provider offering the DTZ. The lead time is regularly two to eight weeks. In large cities, Goethe dates are sometimes booked out two to three months in advance, while telc dates at adult education centers outside metropolitan areas are available at shorter notice.

Examination day. The written and oral parts take place, depending on the provider, on the same or on different days. An official photo ID and the registration confirmation must be brought along. Aids are not permitted; dictionaries and mobile phones are handed in before the start. The duration of the written examination ranges between 100 minutes (DTZ) and 150 minutes (telc); the oral examination typically lasts 15 to 20 minutes and is often taken in pairs, which breaks the speaking task down into dialogic components.

Result and certificate. Evaluation takes two to six weeks depending on the provider. The certificate is sent by post or handed over for collection at the examination center; lost certificates can be replaced by the provider for a fee, often only within a retention period (typically 10 years).

Period of validity in the naturalization procedure. No statutory validity period for language certificates exists for the naturalization procedure. In administrative practice, most authorities accept certificates without an age limit; individual authorities set a maximum period of five to ten years to safeguard current language skills. Anyone who holds an old certificate and has maintained their language practice should clarify early with the responsible naturalization authority whether the certificate will be accepted; alternatively, a personal conversation with the authority can substitute for the missing currency.

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A substitution constellation that is widespread in administrative practice: anyone who presents a German general-education school diploma is regularly regarded as linguistically qualified and does not need a separate B1 certificate. This practice is not directly regulated in the wording of § 10 para. 4 StAG, but is derived from the application guidance of the Federal Ministry of the Interior (Bundesministerium des Innern, BMI) (as of 1 May 2025) — which, although not binding on the administrative authorities, is in fact decisive.

Which school diplomas count? In practice, the diplomas of a German general-education school are recognized:

• Lower secondary school leaving certificate (Hauptschulabschluss, or comparable)
• Intermediate school certificate (Mittlere Reife / Realschulabschluss)
• Advanced technical college entrance qualification (Fachhochschulreife)
• General university entrance qualification (Abitur)

The school diploma must have been obtained at a German school — school diplomas from other German-speaking countries (Austria, Switzerland, Liechtenstein) are assessed individually depending on administrative practice but are not automatically treated as equivalent. The original certificate or a certified copy suffices as proof.

University degree. A bachelor's, master's, or diploma degree obtained at a German university likewise counts in practice as a substitute for proof of language proficiency, because the program was completed entirely in German. For English-language master's programs (often in STEM subjects), this applies only if the studies also had German-language components and the degree was explicitly obtained in Germany.

Practical note. Anyone who holds a German school or university degree should submit the relevant certificate with the naturalization application and explicitly point to the substitution effect in the application. The authority then documents the exemption from the certificate requirement. This saves processing time and costs compared with subsequently registering for a B1 examination.

With the Nationality Law Modernization Act (Staatsangehörigkeitsrechts-Modernisierungsgesetz, StARModG), which entered into force on 27 June 2024, the legislature inserted into the StAG a hardship clause for the language requirement that had previously been lacking. § 10 Absatz 4a StAG reads verbatim:

"To avoid hardship, the requirement of paragraph 1 sentence 1 number 6 may be limited to the foreign national being able to communicate orally in German without significant problems in everyday life, if the person proves that the acquisition of sufficient knowledge of the German language under paragraph 4 sentence 1 is not possible or is permanently and substantially impeded despite serious and sustained efforts."

Constituent elements. The provision combines three cumulative requirements:

1. Avoidance of hardship — the authority must conclude that adhering to the B1 requirement constitutes an undue hardship in the specific individual case.
2. Proof of serious and sustained efforts — the applicant must demonstrate that they have made intensive efforts to acquire the language. In practice, the authorities accept certificates of participation in several language courses, repeated test attempts with certificates of non-passing, and supplementary medical or educational statements.
3. Impossibility or permanent substantial impediment — further language acquisition must be objectively ruled out or structurally impeded. Typical constellations are severe cognitive impairments, reading- and spelling-related learning disorders with long-term therapy without success, severe post-traumatic stress disorders, and age-related limitations in learning capacity.

Legal consequence. The requirement is not waived, but reduced to the lower level of oral everyday communication. Anyone who invokes the hardship clause must be able to "communicate orally in German without significant problems in everyday life" — a threshold that lies clearly below B1 but presupposes rudimentary communication ability. The authority examines this in a personal conversation.

Procedural path. The hardship application is not examined automatically but is reviewed upon request or a substantiated indication. Anyone who wants to invoke the clause should attach to the naturalization application a justification of the hardship, supplemented by certificates of course participation, certificates of unsuccessful test attempts, and, where applicable, specialist medical attestations. The burden of proof lies with the applicant.

Relationship to § 10 para. 6 StAG. The hardship clause of paragraph 4a is to be distinguished from the exemption of paragraph 6. § 10 para. 6 fully releases from the language and test requirement where physical, mental, or psychological illness, disability, or age-related impossibility is present. § 10 para. 4a, by contrast, reduces the level to oral everyday communication — the requirement thus remains in place but is set lower. The differentiation is determined administratively by the severity of the impeding cause: full exemption under para. 6 presupposes impossibility, while the hardship reduction under para. 4a presupposes structural impediment.

The second major innovation of the 2024 StARModG is the facilitation for the former recruitment generation inserted into § 10 Absatz 4 Satz 3 StAG:

"For a foreign national who, on the basis of an agreement on the recruitment and placement of labor, entered the territory of the Federal Republic of Germany as constituted on 2 October 1990 by 30 June 1974, or entered the territory referred to in Article 3 of the Unification Treaty as a contract worker by 13 June 1990, or who joined as their spouse in temporal connection, it is sufficient for fulfilling the requirements of paragraph 1 sentence 1 number 6 if they can communicate orally in German without significant problems in everyday life."

Who is covered? The provision covers two clearly defined groups of persons:

• Guest-worker generation of the Federal Republic — persons who, on the basis of a bilateral recruitment agreement (Italy 1955, Spain 1960, Greece 1960, Turkey 1961, Morocco 1963, Portugal 1964, Tunisia 1965, Yugoslavia 1968, South Korea 1971), entered the Federal Republic by 30 June 1974, including those spouses who joined in temporal connection.
• Contract workers of the GDR — persons who entered the territory of the former GDR as contract workers by 13 June 1990, as well as their spouses in temporal connection.

Rationale. The legislature justified the facilitation with the historical finding that both groups had barely any systematic integration offers available to them at the time. The formal B1 proof by today's standard would, for many members of this generation, be a disproportionate hurdle in light of their real life achievement in Germany.

Legal consequence. As with the hardship clause of para. 4a, oral everyday communication suffices. Unlike the hardship clause, the facilitation is tied to objective constituent elements (entry category and date); proof of individual efforts or impediments is not required. Proof is regularly provided by presenting the historical entry document, the employment contract of the time, or an official confirmation of the recruitment constellation.

Test exemption. Via § 10 para. 6 sentence 2 StAG (reference to para. 4 sentence 3), persons under this facilitation are at the same time exempt from the citizenship test — the oral language facilitation thus also carries over to the test aspect.

Integration course per BAMF design. The integration course (Integrationskurs) is the most comprehensive and most heavily subsidized offering. It typically comprises 600 to 900 teaching units of language instruction plus 100 teaching units of orientation course. Providers accredited by the BAMF are adult education centers, language schools, church educational institutions, and private providers. Participation is free or heavily reduced for many immigrants; for self-payers, the contribution is currently 2.29 euros per teaching unit. The course regularly concludes with the DTZ, whose B1 result can be used directly as proof of language proficiency.

Adult education center B1 course. Outside the integration-course logic, adult education centers offer open B1 courses with typically 80 to 120 teaching units that prepare directly for a telc or Goethe examination. Course fees vary between roughly 200 and 600 euros per course and federal state; social discounts are granted in many places. The advantage over the integration course is the shorter overall duration; the disadvantage is that prior knowledge at A2 level is generally assumed.

Self-study. Anyone who already has solid prior knowledge — for example, from years of employment in a German-speaking environment or from an earlier A2 course — can prepare for a B1 examination without a course. Suitable resources are coursebooks (such as "Aspekte neu B1 plus" or "Sicher! B1+", both from established publishers), the online practice offerings of the Goethe-Institut and Deutsche Welle, and commercial apps for deepening vocabulary and grammar. This article does not make a recommendation for or against any particular self-study material — the choice depends on learning type, prior knowledge, and available time.

Learning-time estimate. From the A2 level to passing B1, the Common European Framework of Reference schedules 200 to 400 additional teaching or learning units, depending on prior education in related languages, learning intensity, and language practice in everyday life. Anyone starting without prior knowledge (level zero) typically needs 400 to 600 hours from the A1 start to passing B1, which at two hours per week corresponds to four to six years — but only six to nine months in a full-time integration course.

The specific examination fees of the individual providers vary by region, examination center, and, where applicable, modular or bundled registration. The following overview reflects typical ranges as of 2026; binding information is provided directly by the examination centers.

Social discount. Recipients of Bürgergeld (citizen's allowance), housing benefit, or social assistance receive reduced course fees from many providers and at adult education centers; the examination fee itself is reduced less often. There is no nationwide obligation to grant a discount.

The examination fee is to be seen separately from the naturalization fee under § 38 StAG (255 euros). Applicants pay both amounts in parallel — see in detail under Costs of Naturalization.

Choosing the wrong certificate type. Anyone who books a Goethe or telc examination at a level not intended (such as A2 instead of B1) ends up without a B1 certificate. The test type must be explicitly selected as B1 with the provider; modular providers may allow level upgrading over the course of the modules, but that is not the standard.

Confusing DTZ A2 with DTZ B1. The DTZ is a scaled test that indicates the level achieved per skill. Anyone who reaches only A2 in one of the four skills does hold a DTZ certificate, but it counts only as A2 for that skill and is not sufficient for naturalization. B1 is required in all four skills.

Examination abroad with unclear recognition. Anyone who takes the Goethe-Zertifikat abroad (for example, at a Goethe-Institut in Istanbul, Belgrade, or Buenos Aires) receives an equivalent certificate. With smaller providers abroad that do not belong to the Goethe/telc/ÖSD family, recognition in Germany is not guaranteed. Before booking, it is advisable to check with the responsible German naturalization authority.

Certificate without an oral module. Some examination providers advertise "written B1 examinations" that cover only three of the four skills. For naturalization, a complete B1 certificate covering all four skills is required. Anyone taking a modular examination must, in the end, present four module certificates or a combined certificate covering all skills.

Overlooked exemption constellation. Anyone who holds a German school or university degree or falls under the hardship or guest-worker clause sometimes nevertheless takes a B1 examination without clarifying the exemption with the authority. The examination fees and effort arise unnecessarily in these cases. Before registering, it is worth calling the naturalization authority to clarify the language-requirement situation individually.

Which language level is required for naturalization in Germany?

B1 under the Common European Framework of Reference for Languages (§ 10 para. 4 sentence 1 StAG). B1 means independent language use in everyday life, work, and dealings with authorities.

Which language certificates are accepted?

Nationwide without case-by-case discussion: the Goethe-Zertifikat B1, telc Deutsch B1, ÖSD Zertifikat B1, and the Deutsch-Test für Zuwanderer (DTZ) with a B1 result in all four skills. Higher certificates (B2, C1, C2) as well as TestDaF and DSH are recognized because they exceed B1.

Is a German school diploma sufficient as proof of language proficiency?

Yes. According to the application guidance of the Federal Ministry of the Interior, a German Hauptschule, Realschule, Fachhochschulreife, or Abitur diploma fulfills the language requirement in administrative practice nationwide. A degree obtained at a German university also counts.

Who falls under the hardship clause under § 10 para. 4a StAG?

Persons for whom the acquisition of B1 is not possible or is permanently and substantially impeded despite serious and sustained efforts — for example, due to severe cognitive impairments, reading- and spelling-related learning disorders, post-traumatic stress disorders, or age-related limitations. Proof of both the efforts and the impediment is required. The legal consequence is a reduction to oral everyday communication.

Who falls under the guest-worker facilitation under § 10 para. 4 sentence 3 StAG?

Persons who, on the basis of a recruitment agreement, entered the Federal Republic by 30 June 1974 or entered the GDR as contract workers by 13 June 1990, as well as their spouses in temporal connection. Proof is provided by the historical entry document or employment contract. Oral everyday communication suffices; at the same time, the citizenship test is waived.

When is a person fully exempt from proof of language proficiency?

Under § 10 para. 6 StAG, the language requirement is fully waived if the applicant cannot fulfill it due to physical, mental, or psychological illness, disability, or age. The impairment must be proven by a specialist medical or public-health-officer attestation.

Did the 2025 amending act change the language requirement?

No. The Act Amending the Nationality Act and Further Provisions (BGBl. 2025 I no. 256, in force since 30 October 2025) did abolish the previously available three-year entitlement track, which required a C1 level and special integration achievements. The B1 standard under § 10 para. 1 no. 6 in conjunction with para. 4 sentence 1 StAG for standard entitlement-based naturalization is unchanged.

How long is a B1 certificate valid?

No statutory validity period exists. In administrative practice, most naturalization authorities accept certificates without an age limit; individual authorities set a maximum period of five to ten years. An old certificate can be supplemented by a personal conversation with the authority.

What does a B1 examination cost?

As of 2026, typically between 120 and 250 euros depending on provider and region. The DTZ is regularly free within the integration course.

Is an online language test sufficient?

The standard examinations of Goethe, telc, ÖSD, and the DTZ are recognized — all as in-person examinations at an authorized examination center. Pure online tests from commercial providers without Goethe/telc/ÖSD certification generally do not fulfill the requirement.

Must a B1 certificate cover all four skills?

The decisive provision is § 10 para. 4 sentence 1 StAG: the language requirement is met "if the foreign national fulfills the requirements of a language examination at level B 1 of the Common European Framework of Reference for Languages." In administrative practice, this is understood to mean a certificate covering all four skills — listening, reading, writing, and speaking — at B1 level. A purely written or purely oral partial examination is generally not sufficient. Modular providers such as the Goethe-Institut, telc, or the ÖSD do, however, allow individual modules to be retaken until, in the end, proof covering all four skills is available. Whether a specific certificate is sufficient is assessed by the responsible naturalization authority — an overview of the requirements is available under Check Requirements.

Is proof of language proficiency the same as the citizenship test?

No, these are two separate requirements. Proof of language proficiency under § 10 para. 1 no. 6 StAG requires that the applicant "possesses sufficient knowledge of the German language" (operationalized as B1 under § 10 para. 4 sentence 1 StAG). The citizenship test under § 10 para. 1 no. 7 StAG, by contrast, examines knowledge of the legal and social order and of living conditions in Germany. Each requirement is proven independently. Anyone who falls under the guest-worker facilitation under § 10 para. 4 sentence 3 StAG or the hardship clause under § 10 para. 4a StAG is, via § 10 para. 6 sentence 2 StAG, at the same time exempt from the citizenship test. In detail on the test aspect: Citizenship Test.

What applies in cases of illiteracy or persistent illness for proof of language proficiency?

The law knows two paths. If the acquisition of B1 — for example, due to functional illiteracy or a long-standing learning disorder — is permanently and substantially impeded despite serious and sustained efforts, the requirement can be limited under § 10 para. 4a StAG to the person being able to "communicate orally in German without significant problems in everyday life." In cases of physical, mental, or psychological illness, disability, or age-related impossibility, the language requirement is fully waived under § 10 para. 6 sentence 1 StAG. How the impairment is to be proven is regulated not by the wording of the statute but by administrative practice — a specialist or public-health-officer attestation is customary (cf. the General Administrative Regulation on Nationality Law). Which path applies in an individual case depends on the type and severity of the impairment — the decision is made by the responsible authority. In complex constellations, a lawyer or a cooperating partner law firm can assess the individual situation.

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