When a German employer plans a Betriebsänderung under § 111 BetrVG, it negotiates an Interessenausgleich (covering whether, how and when) and a Sozialplan to offset economic disadvantages (§ 112 BetrVG) with the Betriebsrat. The Interessenausgleich cannot be enforced; the Sozialplan can. If the employer proceeds without a genuine attempt at an Interessenausgleich, employees may claim a Nachteilsausgleich (§ 113 BetrVG). These rules apply in companies that normally employ more than 20 employees eligible to vote.
What counts as a Betriebsänderung
§ 111 BetrVG lists five cases. In practice they look like this:
- Curtailment or closure of the business or substantial parts of it. The classic case is closing a site, but a larger headcount reduction without a closure also counts once it affects a substantial share of the workforce
- Relocation of the business or substantial parts, for example moving customer service from Munich to Leipzig
- Merger or split of businesses, for example combining two units after an acquisition
- Fundamental change to the organisation, purpose, or facilities, for example moving from regional units to a functional structure
- Introduction of fundamentally new working methods or production processes, for example moving a process entirely onto a new system so that the way people work changes
What always matters is whether substantial parts of the workforce are affected. Renaming departments is not a Betriebsänderung; a change that alters tasks and jobs is.
Two agreements attach to this: the Interessenausgleich, covering whether, how, and when the measure happens, and the Sozialplan, which offsets the economic disadvantages. Both require a works council and normally more than 20 employees eligible to vote.
At a glance
- Scope: a Betriebsänderung under § 111 BetrVG in companies that normally employ more than 20 employees eligible to vote
- Interessenausgleich (§ 112 BetrVG): negotiation over the whether, how and timing; cannot be forced through the conciliation board (Einigungsstelle), only a genuine attempt is mandatory
- Sozialplan (§ 112 BetrVG): compensation for economic disadvantages, has the effect of a works agreement and can be enforced via the Einigungsstelle
- Nachteilsausgleich (§ 113 BetrVG): employees' claim to compensation if the employer deviates or implements the change without a sufficient attempt at an Interessenausgleich
- For pure headcount reductions, additional thresholds apply to the enforceable Sozialplan (§ 112a BetrVG)
- Separate from all of this: the mass-dismissal notification (Massenentlassungsanzeige) to the employment agency under § 17 KSchG
How it works in practice
- Sequence: the employer informs the Betriebsrat fully and in good time and negotiates the Interessenausgleich first
- Einigungsstelle: if no Interessenausgleich is reached it can be called, but it cannot impose one; on the Sozialplan it can decide with binding effect
- The Massenentlassungsanzeige under § 17 KSchG may run in parallel and does not replace works council involvement
FAQ
Must the employer actually conclude an Interessenausgleich?
No. Only the genuine attempt, including calling the Einigungsstelle, is mandatory. A conclusion cannot be forced. But deviating without that attempt exposes the employer to Nachteilsausgleich claims.
How do Interessenausgleich and Sozialplan differ?
The Interessenausgleich concerns the change itself (whether, how, when). The Sozialplan governs the financial cushioning of the consequences, such as severance. The Sozialplan is enforceable; the Interessenausgleich is not.
What is the Nachteilsausgleich under § 113 BetrVG?
If the employer carries out the change without sufficiently attempting an Interessenausgleich, affected employees can claim compensation. It is a standalone claim alongside the Sozialplan.
How does this relate to the Massenentlassungsanzeige?
The § 17 KSchG notification is a separate duty toward the employment agency. It may arise at the same time but does not replace the Interessenausgleich or Sozialplan, and vice versa.
Last updated: August 2026
This article provides general information and is not a substitute for legal advice in individual cases.
