Inflation-Indexed Pay Clause in Germany: Void, but Employers Still Pay

An inflation-indexed pay clause in Germany that raises salaries automatically in line with the consumer price index breaches section 1(1) of the Price Clause Act (Preisklauselgesetz), unless a statutory exception applies. But the clause becomes void only once a court has finally established the breach. Until then employees can still claim the indexed increase — as LAG Köln confirmed on 29 May 2026 (7 SLa 571/25).

Hinweis: Dieses Bild ist KI-generiert.

Key points

• The employer won on the legal issue and still owed roughly €6,888 in back pay for January 2022 to June 2025.

• Voidness operates ex nunc under section 8 sentence 1 PreisklG — from the final judicial finding, not retroactively.

• The employer's attempt to revoke the clause failed on two independent grounds.

• The employer could rely on the invalidity of its own standard clause, contrary to the usual rule.

• Leave to appeal to the Federal Labour Court was granted. No supreme court authority exists on this question.

The facts

In July 2021 a non-tariff-bound employer issued a written blanket commitment (Gesamtzusage) assigning employees to pay grades and undertaking to adjust each grade annually to the consumer price index, first with effect from 1 January 2022.

The increases granted fell short:

Effective	CPI change (prior year)	Increase granted
1 Jan 2022	3.1 %	2.3 %
1 Jan 2023	6.9 %	3.7 %
1 Jan 2024	5.9 %	2.2 %
1 Jan 2025	2.2 %	2.5 %

In autumn 2023 the employer notified staff that the indexation provision was revoked with effect from 1 October 2023. One employee — whose monthly gross pay had risen from €2,850 to €3,445.39, against €3,697.81 claimed — sued for the difference. The employer counterclaimed for a declaration that the provision was void. Both claims succeeded.

Why an inflation-indexed pay clause in Germany is void

Section 1(1) PreisklG prohibits monetary debts from being determined directly and automatically by the price or value of other goods or services not comparable to those agreed.

LAG Köln found all elements present. Wages are a monetary debt. The clause operated without any decision or discretion by either party. And the consumer price index tracks a broad basket of goods and services bearing no comparability to the work owed.

No exception applied. The employee invoked section 3(1) no. 1(c) PreisklG, which permits index clauses for recurring payments running until the recipient's retirement. LAG Köln rejected this: nothing indicated an obligation lasting until retirement, and pay claims arise only once work has been performed.

The twist: void, but not yet

Under section 8 sentence 1 PreisklG a price clause becomes invalid only when a breach has been established by a final and binding decision. Sentence 2 preserves its effects until then. The clause is in suspended validity, and the employee may claim payment calculated under the very provision that will later be struck down.

Two consequences follow.

The employer paid. Despite prevailing on its counterclaim, it owed the full differential from January 2022 to June 2025.

Timing is a cost variable. Every month an index clause survives without a declaratory action is a month of accruing liability that a later victory will not recover. LAG Köln was explicit that pendency of the counterclaim does not suffice — section 8 sentence 1 requires a final decision.

The court also confirmed the procedural route: a declaratory action is necessary, because in a payment action the invalidity would be a mere preliminary question without res judicata effect. A counterclaim within the employee's action is permissible.

Why the revocation failed

No partial revocation right. The commitment reserved a right to revoke the commitment, not individual provisions. The employer revoked only the indexation clause and left the rest in force — outside the reservation.

The reservation was void anyway. A blanket commitment is a set of standard terms subject to sections 305 ff. BGB. A revocation reservation affecting remuneration must satisfy section 308 no. 4 BGB and at minimum indicate the directionfrom which revocation may come — economic grounds, performance, conduct. This clause named none and failed the transparency requirement. The argument that blanket commitments should escape review like works or collective agreements under section 310(4) BGB was rejected.

The employer could rely on its own void clause

A party that drafts standard terms normally cannot invoke their invalidity. LAG Köln disapplied that principle.

Sections 307 ff. BGB protect the counterparty against one-sided use of drafting power. Section 1 PreisklG does something different: it prohibits index clauses regardless of who proposed them, in the public interest of monetary stability. The prohibition therefore protects the drafter too.

Practical takeaways

• Audit existing clauses. Any automatic linkage of pay to an index is exposed — in blanket commitments, works agreements, and individual contracts.

• Use the CPI as a reference point, not a trigger. A commitment to review pay annually, with the index as one input and the decision reserved to reasonable discretion, sits outside the prohibition. One-off payments are another route.

• Draft revocation reservations properly. State the grounds, and provide expressly for partial revocation if it may be needed.

• Act early. Liability accrues until a final decision. A declaratory action is the only way to stop the clock.

• Check ancillary payments. Weekend, night and overtime premiums calculated as a percentage of base pay rise with it. The exposure is not confined to base salary.

• Do not assume offsetting works. A tax-free inflation compensation bonus paid in 2022 could not be set off, because no direction to apply it toward later differentials existed at the time of payment.

• Review forfeiture clauses at the same time. The contractual three-month cut-off failed on three separate grounds, so nothing was time-barred.

Frequently asked questions

Are inflation-indexed pay clauses valid in Germany?

No, unless a statutory exception applies. Automatically linking pay to the consumer price index breaches section 1(1) of the Price Clause Act, because the index reflects goods and services not comparable to the work owed.

When does the clause become void?

Only when a court has finally established the breach, under section 8 sentence 1 PreisklG. Until then employees can claim payment calculated under the clause.

Can an employer rely on the invalidity of a clause it drafted itself?

In this context, yes. Because the Price Clause Act protects the public interest in price stability rather than the counterparty, the usual bar on drafters invoking their own invalid terms does not apply.

Can the clause simply be revoked?

Only under a valid revocation reservation. A reservation naming no grounds is void under section 308 no. 4 BGB, and a general reservation does not authorise revoking a single provision.

Is the decision final?

No. LAG Köln granted leave to appeal to the Federal Labour Court, noting the absence of supreme court authority on whether section 1 PreisklG bars CPI-based pay increases.

Bottom line

The employer was right on the law and still wrote a cheque. A prohibition that bites only prospectively turns delay into cost: every month an index clause stays in place without a declaratory action is liability that a later court victory will not undo.

About the author

Noah Osuji, Rechtsanwalt Kanzlei Osuji, Munich

Advice available in German and English. Enquiries in either language are welcome.

As at 14 August 2026. LAG Köln, judgment of 29 May 2026, 7 SLa 571/25. This article reflects the position at that date and is not legal advice in an individual case.