Teacher trainees often ask early whether a standard disability insurance (Berufsunfähigkeitsversicherung, BU) is enough, or whether a service disability policy (Dienstunfähigkeitsversicherung) is the better fit. The two terms sound alike but follow different rules. This guide explains how unfitness for service is defined and where it differs from BU.
Short answer: Unfitness for service (Dienstunfähigkeit) is a concept of German civil service law. Civil servants for life are retired when they are permanently unfit for service (section 44 BBG). A person can also count as unfit if, within six months, they have been absent from duty for more than three months and no recovery is expected. A service disability policy usually links to this official finding. The rules differ between the federal government and the states. Last updated: October 2026.
Key points at a glance
- Dienstunfähigkeit is a term of civil service law, not of insurance contract law.
- The employer decides on retirement. A service disability policy usually follows that decision.
- BU is based on your last occupation (section 172 VVG). Dienstunfähigkeit asks whether you can perform your service as a civil servant.
- Reassignment to another post can prevent retirement under civil service law.
- Whether an extra policy makes sense depends on civil service status, your federal state and your pension position.
What does unfitness for service mean under civil service law?
Civil servants for life are to be retired when they are unfit for service (section 44 BBG). A person is unfit for service if they are permanently unable to perform their duties. The law also contains a six-month rule: anyone who has been absent from duty for more than three months within six months, and has no prospect of full fitness within a further six months, may likewise be considered unfit.
Reassignment matters. Anyone who can be deployed in another post, including in a different career path, is not retired. The employer examines whether this is possible. Unfitness for service is therefore not a purely medical term, but a decision by the employer based on medical findings. Federal and state law set the detailed procedures (§ 44 BBG, Federal Civil Service Act, retirement for unfitness for service (in German, retrieved 26 Oct 2026)).
What is the difference from BU?
The logic is different. BU asks whether you can still practise your last occupation. Unfitness for service asks whether you can perform your duties as a civil servant, and it takes reassignment into account.
| Feature | Service disability insurance | Disability insurance (BU) |
|---|---|---|
| Legal framework | Civil service law of the federal government or a state | Insurance contract law (section 172 VVG) |
| Trigger | Unfitness for service, usually linked to retirement | Occupational disability as defined in the tariff |
| Who decides | The employer, based on medical findings | The insurer, under the policy terms |
| Test applied | Ability to perform service, with regard to other posts | Last occupation, with referral only if the contract allows |
| Referral | Under civil service law, to other posts | Set out in the contract, for example the abstract referral |
| Relevance for teacher trainees | Relevant after civil service appointment | Relevant before appointment or in employed roles |
Pension entitlements in civil service depend on years of service and pay. With short service, the pension can therefore be low. This is where thoughts about an additional policy start.
When is BU more suitable, and when a service disability policy?
BU is relevant as long as you are not a civil servant, for example during your studies, in interim phases or in employment. It protects the working life you have, regardless of civil service rules.
A service disability policy is considered more carefully when appointment as a civil servant is likely and you want to assess the gap in your pension. The decision depends on how certain the route into civil service is, which federal state you will work in and how you estimate your years of service.
What to check in teacher training
- Civil service status: are you still studying, in a preparatory service, or is appointment foreseeable?
- Federal state: civil service law and pension rules differ between the states. Check the rules of your state.
- Definition and proof: how does the policy define unfitness for service, and what evidence does it require?
- Referral: do the rules on abstract referral apply, and how do they affect your cover?
- Health questions: pre-existing conditions must be disclosed where the application asks about them.
A detailed overview of cover for teacher trainees is available in German in Berufsunfähigkeitsversicherung im Lehramtsstudium: Dienstunfähigkeit und Beamtenanwartschaft.
Example for the period before appointment
Assumption: you study to become a teacher and expect to be appointed after your preparatory service. In the meantime you work part-time in an employed post as a substitute teacher. During that phase civil service law does not apply, so your protection depends on your employment and on any BU you hold.
For this interim period, ask which cover protects you in that stage of life. A BU that recognises your work as a teacher can be relevant then. Whether an additional service disability policy makes sense later depends on how secure the appointment is and how long your service is expected to last.
Frequently asked questions
Do I need BU as a teacher trainee?
That depends on whether and when you will be appointed and whether you work in an employed post in the meantime. BU can help in phases when you are not covered as a civil servant. There is no blanket answer.
Does a service disability policy replace BU?
Not automatically. The two policies protect different situations. Whether you need one, the other or both depends on your career plan.
What happens if I am not appointed as a civil servant?
Then civil service law does not apply. Your protection depends on your employment and, if you have one, your BU. Your choice of cover should take this possibility into account from the start.
Does the six-month rule also apply during a preparatory service?
The six-month rule is set out in civil service law and applies to civil servants for life. How it is applied during preparatory service depends on state law and on your status. Ask your examination office or your employer before relying on any rule.
How is unfitness for service established?
The employer usually arranges an examination by a public health officer. The result feeds into the decision on retirement. The detailed procedures and deadlines are set by federal and state law.
What to do now
- Clarify your path: appointment, employment, or still open.
- Read the rules of your federal state on unfitness for service and pension before you choose a policy.
- Compare the DU and BU terms by definition, referral and proof.
- Get personal help with health questions and contract details if you are unsure. Academycon offers this in German at So arbeiten wir.
Related reading
- Teacher Disability Insurance: Occupational vs. Inability to Serve
- Lehramt: Versicherung vom Studium bis zum Referendariat (in German)
- Abstrakte Verweisung
- BU nach dem Studium
Sources: § 44 BBG, Federal Civil Service Act, retirement for unfitness for service (in German, retrieved 26 Oct 2026); § 172 VVG, Insurance Contract Act (in German, retrieved 26 Oct 2026).
Last updated: October 2026. This guide is general information, not individual advice.
