Your works council gets the pay gap methodology, not just the result. Most German employers are preparing the wrong document.

Most German employers preparing for the EU Pay Transparency Directive are building a report. The Directive is asking them to build a process with a second party in it.

That distinction decides how the first reporting cycle goes. Directive (EU) 2023/970 does not treat workers' representatives as recipients of a finished pay gap report. It gives them a role inside the production of that report: a consultation right before management can confirm the figures are accurate, a right of access to the underlying methodology, a right to demand substantiated clarification of any published number, and joint execution of the assessment that follows a gap above five per cent.

In Germany, that sits on top of an existing co-determination framework that is stronger than what the Directive requires. The result is that in a typical Mittelstand company with a works council, the pay gap report is not an HR deliverable that gets presented. It is a document whose method has to survive a counterparty with statutory information rights.

The number is the easy part. The methodology is what gets negotiated.

What rights does the Directive actually give workers' representatives?

Four, and they attach at different moments of the cycle. Reading them as a single "inform the works council" obligation is the most common preparation error.

1. Consultation before management confirms accuracy

Article 9(7) provides that the accuracy of the information in the pay gap report is confirmed by the employer's management after consulting workers' representatives. This is a sequencing rule, not a formality. The confirmation step that makes the report official cannot legitimately happen before the consultation.

Practically, this means the works council sees a draft. An employer that publishes first and briefs second has performed the steps in the wrong order.

2. Access to the methodology

The same provision gives workers' representatives access to the methodologies the employer applied. This is the provision employers underestimate.

A pay gap figure is the output of a chain of choices: which pay components were counted, how part-time hours were normalised, how employees were sorted into categories of workers performing equal work or work of equal value, and how the evaluation criteria were weighted. Each of those choices moves the number. Handing over a percentage without the chain behind it does not satisfy a right of access to methodology.

3. The clarification right

Workers, workers' representatives, labour inspectorates and equality bodies may request additional clarifications and details on any of the data provided, including explanations of gender pay differences. The employer owes a substantiated reply within a reasonable time.

There is no cap on this. A works council that receives an unexplained three per cent gap in one value group can ask why, and "the analysis shows this" is not a substantiated reply.

4. Joint execution of the pay assessment

Where the report shows an average pay difference of at least five per cent in a category of workers, the difference is not justified on objective, gender-neutral criteria, and the employer has not remedied it within six months of submitting the report, Article 10 requires a joint pay assessment carried out in cooperation with workers' representatives.

The word doing the work is "joint". Article 10 lists the assessment's contents, and among them are the reasons for the pay differences and any objective, gender-neutral justifications, as established jointly by the employer and the workers' representatives. The justification is not something the employer asserts and the works council receives. It is something both parties arrive at, or fail to arrive at.

Why the German position is stronger than the Directive baseline

German employers should not plan against the Directive alone, because domestic co-determination law already reaches further into pay structures than the Directive does.

Section 87(1) no. 10 of the Betriebsverfassungsgesetz gives the works council binding co-determination over questions of company pay structure, in particular the establishment of pay principles and the introduction of new pay methods. This is not an information right. It is a genuine veto point: measures within its scope require the works council's agreement.

That matters because the first substantive step in Directive preparation is usually a job evaluation exercise, which produces exactly what section 87(1) no. 10 covers. An employer that designs a value group structure and a criteria weighting on its own, then presents it, has built the most contested artefact of the entire compliance programme without the party whose agreement it needs.

Section 87(1) no. 10 BetrVG is a veto point, not an information right. Job evaluation lands squarely inside it.

Section 80(1) no. 2a BetrVG also makes promoting the enforcement of equal pay between women and men an explicit works council task, which the Federal Labour Court confirmed in its 2020 decision on gross pay lists.

Three ways the works council conversation goes wrong

These are sequencing failures rather than legal ones, which is why they are avoidable at close to zero cost if they are caught early.

1. The methodology arrives after the number

An employer runs the analysis, gets a headline figure it can live with, and then assembles the documentation. The works council reads the documentation, questions a grouping decision, and the number changes. Credibility is now the issue rather than the pay gap.

Agreeing the method first costs a few meetings. Re-running the analysis after a disputed publication costs a cycle.

2. Value groups are treated as a technical decision

Deciding which roles constitute a single category of workers performing work of equal value is the most consequential input to the whole report, because it defines the population inside which the five per cent threshold is measured. Change the boundaries and gaps appear or disappear.

Employers frequently treat this as an analytics question. It is a co-determination question in Germany, and under Article 9(7) the reasoning behind it is disclosable to workers' representatives in any case.

3. The justification file does not exist

When a gap above five per cent surfaces, the employer needs objective, gender-neutral reasons that can be evidenced per employee, not asserted per group. German case law has already closed off several of the explanations employers reach for first, including individual negotiation skill and prior salary history. We covered those rejected justifications in a separate article.

A justification that cannot be documented at the point of the joint assessment is, in practice, not available.

The tension nobody has resolved: transparency against data protection

Works councils want granular data. The Directive constrains how granular the employer may go.

Article 12 subjects all processing under the Directive to the GDPR. The Directive also restricts disclosure that would allow identification of an individual colleague's pay. In a company of 400 people, a value group may contain seven employees, of whom two are women. A mean pay figure for that subgroup is arithmetic that resolves to individuals.

The workable answer is suppression thresholds applied consistently and explained in advance, rather than case by case when a works council asks. Two practices help. Set a minimum group size below which sex-disaggregated figures are not shown, and apply complementary suppression so that a suppressed cell cannot be back-calculated from the totals around it. Agree the threshold with the works council before the first report, so that a redaction is not read as evasion.

What to do in the next two quarters

The sequence matters more than the speed.

1. Open the topic with the works council before you have numbers. A conversation about method is collaborative. A conversation about a published gap is adversarial. The window for the first is open now.
2. Agree the job evaluation approach and the criteria weighting in writing. This is where section 87(1) no. 10 BetrVG bites, and where a later dispute is most expensive. A works agreement covering the method is the most useful document you can produce this year.
3. Document the pay component decisions as you make them. Which components counted, how part-time was normalised, how variable pay was treated. This becomes the methodology disclosure under Article 9(7) with no additional work.
4. Fix a suppression threshold and explain it. Decide the minimum group size, apply complementary suppression, and put the rationale in the documentation before the first figures circulate.
5. Run a dry cycle on current data. Not to publish, but to find out which value groups are near the five per cent line and whether the justifications you would rely on are evidenced today.
6. Assign an owner for clarification requests. A substantiated reply within a reasonable time is an operational commitment. Someone has to be able to reconstruct any published figure on request.

Software does the analytical groundwork here: the grouping, the metrics, the audit trail that makes a figure reconstructible months later. It does not settle the co-determination questions, and no tool can represent the employer in a works agreement. Those remain matters for the employer and its counsel.

The counterparty is already in the room

German employers have spent two years treating pay transparency as a reporting problem with a 2027 or 2028 date attached. The date is the least demanding part of it. The demanding part is that the Directive installs a second party inside the compliance process, with a right to see how the number was made and a joint role in deciding whether a gap is defensible, and that German co-determination law hands that same party a veto over the pay structures the whole exercise rests on. Employers that start the methodology conversation while it is still a design question will negotiate. Those that start it after the first report will litigate the design retrospectively, with a number already on the table.