When the European Commission talks about closing the gender pay gap, it does so with the moral weight of an institution that has written equality into its founding texts. Article 157 of the Treaty on the Functioning of the European Union makes equal pay for equal work a legal principle, not a suggestion. The Pay Transparency Directive, adopted in 2023, is a serious piece of legislation—one designed to drag member states into line. But I have spent the better part of a decade chasing a quieter, more uncomfortable question: do the bodies that write and enforce these rules actually follow them? The numbers I have gathered suggest a gap between rhetoric and reality that is not just symbolic. It is structural, and it is stubborn.
My work draws on internal staff surveys, salary band audits, and a long, careful look at career progression inside the European Commission, Parliament, and Council. What emerges is a pay differential that cannot be waved away by pointing to differences in grade, role, or hours worked. The unadjusted gender pay gap across the EU institutions sits somewhere between 8 and 12 percent, depending on the body and the year you measure. The adjusted gap—the one that controls for grade and function—shrinks, but it does not vanish. It settles at a persistent 2 to 4 percent. That leftover slice is the hard kernel of the problem: a gap that remains after you strip out all the standard explanatory variables. It is the gap that policy struggles to name, and that institutions are reluctant to own.
The Architecture of Unequal Pay
To get a grip on the gap, you first have to understand how EU staff salaries are built. The system rests on a function group and grade structure, with clear steps and promotion thresholds. Entry is by competition, and progression is a mix of seniority and performance. On paper, it is a model of bureaucratic neutrality. In practice, it produces outcomes that are anything but.
Women are overrepresented in the lower function groups—assistant and secretarial roles, the AST grades—while men dominate the higher administrator grades, the AD category. This vertical segregation is well documented and often gets cited as the main driver of the pay gap. But even inside the AD category, where qualifications and entry requirements are formally identical, women cluster in certain policy areas—social affairs, education, health—while men are disproportionately found in budget, trade, and competition. These latter domains carry an informal prestige and, more to the point, offer faster promotion tracks. The pay scales may be identical on paper, but the speed at which you move through them is not.
The Promotion Paradox
Promotion in the EU institutions is a curious blend of merit and patience. The system rewards both performance and time served. Yet the data show that women, on average, spend longer at each grade before moving up. The reasons are not always overt. Performance evaluations, which feed into promotion decisions, carry subtle biases. The language used in appraisal reports differs systematically by gender. Men are more often described as “strategic” and “decisive”; women as “diligent” and “collaborative.” These adjectives map onto different promotion speeds. A “strategic” official looks ready for higher management; a “collaborative” one looks effective right where she is. Over a thirty-year career, that cumulative lag translates into a significant earnings deficit.
Then there is the question of temporary contracts. Women are more likely to be employed on fixed-term or interim contracts, especially early in their careers. These positions come with lower base pay, fewer benefits, and limited access to internal promotion rounds. The usual justification is operational flexibility, but the effect is a two-tier workforce in which women are disproportionately stuck in the lower tier. This is not a violation of equal pay for equal work in the narrow sense, because the work is not formally equal. But it is a structural inequality that the institutions themselves have designed and maintained.
The Adjusted Gap and Its Implications
When you control for grade, function group, years of service, and working hours, the adjusted gender pay gap in the EU institutions stands at roughly 2 to 4 percent. This figure is often dismissed as trivial—a rounding error in the grand scheme of institutional budgets. But that dismissal is a category mistake. The adjusted gap is not a residual to be explained away; it is the very measure of discrimination that equal pay laws are designed to capture. If two officials with identical qualifications, identical grades, and identical performance ratings are paid differently, and the only systematic variable that correlates with that difference is sex, then you are looking at a prima facie case of pay discrimination.
Some of this adjusted gap can be traced to allowances and supplements that are not evenly distributed. Officials in certain policy areas receive additional responsibility allowances, even when their formal grade does not change. Men are more likely to hold roles that attract these supplements—security, IT oversight, budget coordination. The criteria for awarding such allowances are often opaque, decided by line managers with considerable discretion. That discretion, exercised in a context where senior management is still predominantly male, produces gendered outcomes. It is not a conspiracy; it is a pattern. And patterns of inequality are what structural discrimination looks like in a modern institution.
The Transparency Deficit
The EU has been a global leader in demanding pay transparency from member states and companies. The Pay Transparency Directive requires employers to report on gender pay gaps and to give pay level information to job applicants. Yet the EU institutions themselves have been slow to adopt the same standards internally. Staff salary bands are published, but individual pay data is not. Allowances and supplements are not systematically reported by gender. There is no central, publicly accessible dashboard that tracks the gender pay gap across institutions over time. This asymmetry between external demands and internal practice is not just hypocritical; it eats away at the legitimacy of the entire equality agenda.
In my own work, I have had to rely on leaked internal surveys, anonymized staff data shared under strict confidentiality agreements, and the occasional transparency report that an institution produces under pressure from staff unions. The data is there, but it is guarded. The reluctance to publish it suggests a fear of what it might show. That fear is itself a symptom of a deeper problem: an institutional culture that prefers to manage the appearance of equality rather than the substance.
Work-Life Balance as a Pay Factor
One of the most persistent justifications for the pay gap is the argument that women choose lower-paying roles because they prioritize work-life balance. This argument is both true and misleading. It is true that women in the EU institutions, as elsewhere, are more likely to take parental leave, to request part-time arrangements, and to avoid roles that demand extensive travel or unpredictable hours. But to treat these choices as free and unconstrained is to ignore the institutional context in which they are made.
The EU institutions have generous parental leave policies on paper. In practice, taking that leave slows career progression. Officials who take extended leave miss out on the informal networks and high-visibility projects that accelerate promotion. Part-time work is formally available but informally stigmatized. A woman returning from maternity leave to a four-day week will often find that her portfolio has been quietly reduced, her responsibilities trimmed, and her path to the next grade lengthened. These are not penalties written into the Staff Regulations; they are the accumulated effects of a workplace culture that still equates commitment with constant availability. Until that culture changes, the pay gap will persist regardless of how many directives are passed.
Intersectionality: The Compound Disadvantage
A rigorous analysis cannot stop at the binary comparison of men and women. When you disaggregate by nationality, age, and contract type, the picture gets more troubling. Women from newer member states, particularly those that joined after 2004, face a double penalty. They are concentrated in lower function groups and, within those groups, are more likely to be on temporary contracts. Their pay is lower not only than that of men from the same member states but also than that of women from older member states. This is not a simple gender gap; it is a gap shaped by the intersection of gender, nationality, and institutional seniority.
Age introduces another dimension. The pay gap is narrowest among officials under 35 and widens significantly after 45. This pattern reflects the cumulative effect of slower promotion, more career interruptions, and the glass ceiling that limits women’s access to senior management. In the European Commission, women hold only about 30 percent of senior management positions, despite making up more than half of the overall workforce. The gap at the top is not just a pay gap; it is a power gap. And power, in any bureaucracy, determines who sets the rules, who allocates the allowances, and who defines what counts as merit.
The Council’s Quiet Exceptionalism
Among the institutions, the Council of the European Union presents a special case. Its staff is drawn largely from member state administrations, and its internal culture is shaped by the diplomatic services of the 27 countries. This creates a patchwork of norms and expectations that can be even less transparent than the Commission’s relatively unified system. Seconded national experts, who make up a significant portion of the Council’s workforce, are paid according to their home country’s rules, with a top-up from the EU budget. The gender pay gap among these secondees is often wider than among permanent staff, reflecting the varying levels of gender equality in national civil services. The Council has been particularly resistant to publishing disaggregated pay data, citing the complexity of its staffing arrangements. But complexity is not an excuse for opacity; it is a reason for greater transparency.
What the Directives Demand and What the Institutions Deliver
The EU’s own legal framework sets a high bar. The Pay Transparency Directive requires companies to report gender pay gaps, to conduct joint pay assessments where gaps exceed 5 percent, and to ensure that job advertisements and titles are gender-neutral. The directive also strengthens the right to information for workers and shifts the burden of proof in pay discrimination cases. If an EU institution were a private company, it would be subject to these rules. But EU institutions are not covered by the directive because they are not member state employers. They are governed instead by the Staff Regulations, which contain their own equality provisions. The question is whether those provisions are as strong as the ones the EU imposes on others.
The Staff Regulations prohibit discrimination on grounds of sex and require equal treatment in pay. But they lack the specific mechanisms that the Pay Transparency Directive introduces: no mandatory reporting, no joint pay assessments, no clear burden of proof rules. The European Ombudsman has called for the institutions to align their internal rules with the directive, but progress has been slow. The Parliament has been more proactive, with its Committee on Women’s Rights and Gender Equality pushing for internal audits. Yet even the Parliament’s own administration has not fully implemented the standards it demands of others.
The Commission’s Internal Audit: A Case Study in Half-Measures
In 2021, the European Commission published an internal report on gender equality among its staff. The report acknowledged a pay gap but attributed it almost entirely to vertical segregation—the overrepresentation of women in lower grades. It proposed measures to improve gender balance in management and to encourage men to take parental leave. What it did not do was examine the adjusted pay gap within grades, audit the distribution of allowances, or set binding targets for closing the gap. The report was a classic bureaucratic document: it identified a problem, proposed voluntary measures, and avoided any mechanism for accountability. As a scholar of institutional behavior, I recognize this pattern. It is the response of an organization that wants to be seen as acting, without committing to the consequences of genuine action.
What Meaningful Reform Would Require
If the EU institutions are serious about closing their internal gender pay gap, they need to do more than issue reports and encourage best practices. They need to subject themselves to the same standards they impose on others. That means mandatory annual pay audits, disaggregated by gender, grade, function group, contract type, and nationality. It means publishing the adjusted pay gap and explaining any residual difference that cannot be accounted for by objective factors. It means shifting the burden of proof so that the institution must demonstrate that a pay difference is not discriminatory, rather than requiring individual women to prove that it is.
It also means reforming the promotion system to eliminate the subtle biases that creep into performance evaluations. This could include blind review of promotion files, standardized evaluation criteria, and gender-balanced promotion panels. The EU has already done some of this work in its research funding programs; the same rigor should be applied to its own staff. Allowances and supplements should be awarded through transparent, competitive processes, not through discretionary decisions by line managers. And the culture of presenteeism that penalizes parents and carers must be confronted directly, not just with policies on paper but with changes in practice that are monitored and enforced.
The Cost of Inaction
There is a cost to inaction that goes beyond the financial. The EU’s legitimacy rests on its claim to embody the values it promotes. When it comes to gender equality, that claim is under scrutiny not only from academics like me but from staff unions, civil society organizations, and the public. The European Court of Auditors has noted the gap between the EU’s internal and external equality standards. The European Ombudsman has opened inquiries. Staff surveys show that women in the institutions are less satisfied with their career prospects than men, and that this dissatisfaction is growing. If the institutions do not act, they risk a slow erosion of trust that will make it harder to recruit and retain talented women—and harder to persuade member states to take EU equality directives seriously.
The pay gap inside the EU institutions is not a scandal of the kind that makes headlines. There are no egregious cases of women being paid half what men earn for identical work. But that is precisely what makes it so insidious. It is a gap built into the structures of grading, promotion, and allowance allocation. It is a gap that persists even when all the obvious variables are controlled for. It is a gap that the institutions have the tools to measure and close, but have so far chosen to manage rather than eliminate. That choice is a political one, and it deserves to be challenged.
Frequently Asked Questions
What is the current gender pay gap in the EU institutions?
Based on available data, the unadjusted gap across the main EU institutions ranges from 8 to 12 percent. The adjusted gap, which controls for grade, function group, and seniority, is approximately 2 to 4 percent. This residual gap is the portion that cannot be explained by objective factors and is the most direct indicator of potential discrimination.
Why are EU institutions not covered by the Pay Transparency Directive?
The Pay Transparency Directive applies to employers in EU member states, not to the EU institutions themselves. The institutions are governed by the EU Staff Regulations, which contain general anti-discrimination provisions but lack the specific transparency and enforcement mechanisms that the directive requires of private and public sector employers in the member states.
What can be done to close the gap?
Meaningful reform would require mandatory annual pay audits with detailed disaggregation, publication of adjusted pay gaps, shifting the burden of proof in discrimination cases, reforming promotion and evaluation systems to eliminate bias, and making allowance allocation transparent and competitive. Cultural change around work-life balance and presenteeism is also essential.
Does the gap affect all women equally?
No. Intersectional analysis shows that women from newer member states, those on temporary contracts, and those in lower function groups face compounded disadvantages. The gap widens with age, reflecting cumulative career disadvantages and the glass ceiling in senior management.
