A note on the data
Before the substance, a caveat worth stating plainly. Occupational pay gap figures vary considerably between countries, between datasets, and depending on whether they compare all workers or adjust for hours, experience and seniority.
Most headline national figures are unadjusted — they compare all men and all women, capturing occupational segregation and part-time patterns as well as differential pay for the same work. Adjusted figures, which compare like with like, are typically much smaller but still generally non-zero.
So lists claiming a precise number of occupations where women out-earn men should be read as indicative rather than definitive. What follows focuses on the structural patterns, which are far more consistent across datasets than any specific ranking.
Where pay is set by a published scale
The strongest predictor of a small gap is a transparent, published pay structure with defined progression.
Public sector roles, unionised workplaces and professions with formal grade structures consistently show narrower gaps than comparable private sector work. The reason is mechanical: where pay is determined by grade and years of service rather than by individual negotiation, there is little room for discretion to produce divergence.
This category covers a large part of the public sector — civil service roles, public healthcare, state education, local government, and public sector engineering and legal work.
Roles with standardised entry and progression
Occupations where entry requires a specific licence and progression follows defined stages tend to show smaller gaps for the same reason.
Pharmacy is frequently cited as one of the most equal well-paid professions, and the usual explanation is structural: qualifications are standardised, work is substitutable between practitioners, hours are often predictable, and pay tracks role and experience rather than individual bargaining.
Similar patterns appear in other licensed roles with clear scopes — dietetics, optometry, speech and language therapy, and several allied health professions.
Younger cohorts and early-career roles
Pay gaps in most countries are considerably smaller among younger workers and widen with age.
In some datasets, women in their twenties in certain occupations earn at parity or slightly above male peers, particularly where women are now the majority of graduates in the relevant field. The divergence typically appears later, coinciding with the period when caring responsibilities most commonly affect careers.
That timing is the most consistent finding in the research: the gap is less about starting salaries and more about what happens to progression afterwards.
Where output is directly measured
Occupations where performance is objectively quantified sometimes show reduced gaps, because there is less room for subjective evaluation.
Commission-based sales is the clearest example — revenue generated is not a matter of opinion. Some technical and analytical roles with measurable output show similar patterns.
The qualification is that measurement is only as fair as what gets measured and how opportunities are allocated. Equal commission rates matter little if territories or accounts are assigned unequally, which is why this category is less reliable than transparent pay scales.
Why the gap persists elsewhere
Understanding where gaps widen is as useful as knowing where they narrow.
They are largest where pay is individually negotiated and confidential, where progression depends on subjective assessment, where long or unpredictable hours are required, and where career breaks are heavily penalised. Finance, law and senior corporate roles combine several of these.
The largest single driver identified across multiple countries is the effect of caring responsibilities on progression — often called the motherhood penalty. Earnings for women and men diverge sharply after a first child in most datasets, and much of the aggregate gap traces to that point rather than to unequal pay for identical work.
What to look for in an employer
The practical use of all this is in assessing a specific job rather than choosing an occupation.
Ask whether salary bands are published and whether the range for your role is disclosed. Ask how promotion decisions are made and against what criteria. In jurisdictions requiring gender pay gap reporting, look up the employer's published figures — they are public and revealing.
Also worth checking: parental leave policy for both parents, whether flexible working is genuinely used at senior levels, and what proportion of senior roles are held by women. That last figure tells you more about how progression actually works than any policy statement.