04.08.2026
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Katarzyna Gapińska
Obligations, reporting deadlines, the 5% threshold, penalties and the reversed burden of proof. A practical guide to the Pay Transparency Directive for boards, HR and Comp & Ben.
Pay transparency
Total rewards
Compliance
Compensation management
Labour law
HR
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Written by

Katarzyna Gapińska
Co-founder of Levelly.ai
Table of contents
Key points in brief
Recommendation: do not wait for the final Polish act. Measure the gap now, document your pay criteria and prepare managers to explain them.
In May 2023, the European Union adopted Directive 2023/970 — the most important equal-pay regulation in decades. It sets minimum requirements that strengthen the principle of equal pay for equal work or work of equal value, enshrined in Art. 157 TFEU, and it targets the reasons the gap has persisted for so long: a lack of transparency, legal uncertainty and procedural obstacles.
The key shift is one of perspective. Until now, an employee had to show that a specific decision was unfair. The directive asks a different question: can the company demonstrate that the differences in its pay structure stem from objective, gender-neutral criteria — and not from gender? It also sets an explicit goal: a gap below 5% in every category of workers.
Transparency stops being a matter of company culture and becomes a legal requirement with real consequences.
The directive covers employers in both the public and private sectors and all workers, whether full-time, part-time or temporary. Before hiring, it also protects job applicants. Reporting obligations start at 100 employees, but the rules on pay criteria and the right to information apply to every employer.
A few definitions from Art. 3 shape everything that follows. Pay means basic salary plus any other monetary or in-kind benefits, including complementary and variable components. The gender pay gap is the difference in average pay levels between women and men, expressed as a percentage of men’s average pay; the median pay gap shows the same for the “typical” worker. A category of workers groups people doing the same work or work of equal value in a non-arbitrary way, and work of equal value is assessed with non-discriminatory, gender-neutral criteria (Art. 4). Discrimination covers direct, indirect and intersectional forms, including less favourable treatment linked to pregnancy and family leave.
The directive defines “pay level” as gross annual pay and the corresponding gross hourly pay. The gap is expressed as a percentage so it can be compared with the 5% goal: women earning 97% of men’s pay means a 3% gap. The analysis must be systematic, documented and based solely on objective data.
Two measures should not be confused. The unadjusted gap is the raw difference in average pay, and it is the one reported against the 5% threshold. The adjusted gap accounts for objective factors and reveals the unexplained portion — the part that signals discrimination risk. A company needs both: the first for the report, the second to understand where the risk lies.
The pay-gap report (Art. 9) covers seven elements:
The joint pay assessment (Art. 10) adds one more measure: the proportion of workers who received a pay rise after returning from maternity, paternity, parental or carers’ leave.
The obligation depends on the size of the organisation. Employers with 250 or more workers report every year, starting by 7 June 2027. Those with 150–249 workers report every three years, also from 7 June 2027. Employers with 100–149 workers join every three years from 7 June 2031. Below 100 workers, reporting is voluntary.
For the largest companies, this is not a distant horizon. The pay decisions being made now will shape the data in the first reports.
Art. 10 turns the report into an obligation to act. If the gap in any category of workers is at least 5%, and the employer neither justifies it with objective, gender-neutral criteria nor remedies it within six months of reporting, it must carry out a joint pay assessment with employee representatives.
That is why the threshold cannot be managed with a spreadsheet alone. To make the gap measurable and defensible, a company needs a pay structure that compares the value of work against the four criteria of Art. 4: skills (including soft skills), effort, responsibility and working conditions. Without it, the categories of workers — and therefore the gap itself — can be challenged.
A gap that cannot be explained with objective criteria is no longer a statistic. It is a legal risk.
Articles 5–8 extend transparency to the whole employment cycle. Before employment, applicants are entitled to information on the starting pay or its range, based on objective, gender-neutral criteria. Employers may not ask about pay history, and job ads and job titles must be gender-neutral.
During employment, the employer must give workers easy access to the criteria used to set pay and pay progression; companies with fewer than 50 employees may be exempt from the progression part. Workers may request information on their own pay level and on average pay levels, broken down by gender, for workers doing the same work or work of equal value. The employer must answer within two months and remind workers of this right every year. Clauses that prevent workers from disclosing their own pay are prohibited.
For HR, three effects are immediate:
The directive gives the equal-pay principle real enforcement. In a dispute, the burden of proof is reversed: it is the employer who must prove there was no breach of the equal-pay principle. Workers who suffered discrimination are entitled to full compensation, including back pay, related bonuses and lost opportunities for promotion and progression.
Penalties must be effective, proportionate and dissuasive, and may be based on the employer’s turnover or total payroll. Compliance with equal-pay obligations also counts in public procurement, so missing documentation may cost contracts. At the same time, pay data must be processed in line with the GDPR and used solely to apply the equal-pay principle (Art. 12).
The transposition deadline passed on 7 June 2026, and Poland has not yet fully implemented the directive. Part of it already applies: since 24 December 2025, the Labour Code has required employers to give candidates information on the starting pay or its range, has banned questions about pay history and has required gender-neutral job ads and job titles.
The main bill — on strengthening the right to equal pay for equal work or work of equal value — is on the government’s legislative agenda, with adoption by the Council of Ministers planned for Q4 2026. The directive still points to 7 June 2027 for the first pay-gap reports, and the Labour Code already prohibits pay discrimination. Companies that wait for the final rules lose their most valuable resource — time to prepare.
Preparation does not have to start with a large project. It starts with knowing where you stand.
Levelly.ai supports each of these steps: an automated report covering the seven elements of Art. 9, Oaxaca–Blinder decomposition to justify differences with objective criteria, a compliance dashboard that flags categories above the 5% threshold, an employee view for the right to information, and analysis by job level and department — with data processed under a data processing agreement on EU-based servers.
About the data and sources
• Directive (EU) 2023/970 of the European Parliament and of the Council of 10 May 2023 to strengthen the application of the principle of equal pay for equal work or work of equal value between men and women through pay transparency and enforcement mechanisms.
• Treaty on the Functioning of the European Union, Art. 157.
• Act of 4 June 2025 amending the Labour Code (Journal of Laws 2025, item 807) — pay transparency in recruitment, in force since 24 December 2025.
• Draft act UC127 on strengthening the right to equal pay for men and women for equal work or work of equal value — list of legislative work of the Council of Ministers.
Prepare your organisation for Directive 2023/970 — create a free Levelly.ai account and calculate your pay gap.
Must individual salaries be disclosed?
No. The directive requires transparency of pay rules, criteria and aggregated data — not the salaries of specific people.
What is the 5% threshold?
A gap ≥5% in a category, unjustified and unremedied within 6 months, triggers a mandatory joint pay assessment.
How do the unadjusted and adjusted gaps differ?
The unadjusted gap is the raw difference in average pay. The adjusted gap accounts for objective factors and reveals the unexplained portion — a signal of discrimination risk.
From how many employees does pay-gap reporting apply?
From 100 employees: 250+ annually (from 7 June 2027), 150–249 every 3 years (from 7 June 2027), 100–149 every 3 years (from 7 June 2031). Below 100 — voluntary.
What is the reversed burden of proof?
In a dispute, the employer must prove the difference does not breach the equal-pay principle.