Workforce composition is a pay-gap lever, not just a workforce-planning issue
For Australian employers, gender pay gap reporting is now a visible measure of organisational performance, governance and workforce strategy. A common leadership question is: “How can our gender pay gap increase when salaries have increased?” The answer is that an employer gender pay gap measures the distribution of pay across women and men in the workforce; it is not a like-for-like assessment of whether people performing the same role are paid equally.
As a result, changes in who joins, leaves, is promoted or receives variable remuneration can move reported mean and median gaps even when individual salaries rise. Under the Workplace Gender Equality Act 2012 (Cth) and the strengthened publication regime introduced by the Workplace Gender Equality Amendment (Closing the Gender Pay Gap) Act 2023, employers need to be able to explain these movements with evidence, accountability and a credible action plan.
Key compliance and strategic insights
1. Understand what the reported gap is measuring
WGEA gender pay gap measures compare women’s and men’s remuneration across an employer’s workforce. Depending on the measure, this can include base salary and total remuneration, with the latter capturing superannuation, bonuses, allowances and other payments. It is a workforce-level indicator, not proof that unlawful unequal pay has occurred.
- A gap can widen if a larger share of men move into higher-paid management, technical, sales or executive roles, even if women and men in each role receive equivalent percentage pay increases.
- A gap can narrow if more women are recruited or promoted into higher-paid roles, or if lower-paid, male-dominated cohorts reduce in size.
- Median and mean results can move differently. A small number of highly paid executive hires, retention payments or incentive outcomes may significantly affect the mean, while broader changes in workforce structure can affect the median.
- Total-remuneration gaps can be particularly sensitive to short-term incentives, commissions, equity-linked rewards and bonus eligibility.
Boards should therefore read the gap alongside headcount, grade, occupation, employment status, location, tenure, promotion, recruitment and exit data. The question is not simply whether the number rose or fell, but what changed in the organisation to produce that result.
2. Treat hiring, promotion and exits as pay-gap events
Every workforce decision has the potential to change the composition of remuneration. This is especially important during restructures, mergers, rapid growth, leadership succession and transformation programs.
- Track gender representation and remuneration at each job architecture level before and after major recruitment campaigns, restructures and redundancy rounds.
- Assess whether women and men have comparable access to promotion pipelines, acting opportunities, revenue-generating roles, technical career paths and leadership development.
- Examine attrition by gender and level. The departure of several senior women can widen a gap quickly, while the exit of lower-paid male cohorts can have the opposite effect.
- Review starting salaries and sign-on, retention and discretionary incentive decisions. These decisions can compound over time and become embedded in workforce composition.
This analysis should complement, not replace, equal-remuneration obligations. The Fair Work Act 2009 (Cth), including reforms made through the Fair Work Legislation Amendment (Secure Jobs, Better Pay) Act 2022, supports pay transparency and strengthens the framework for addressing gender-based undervaluation and equal remuneration. Employers need both a rigorous like-for-like pay equity review and a workforce-level gender pay gap strategy.
3. Prepare for public scrutiny, not just annual submission
The Workplace Gender Equality Amendment 2023 has made employer gender pay gap information more publicly accessible. WGEA can also publicly name relevant employers that fail to comply with reporting obligations. Non-compliance may affect an employer’s capacity to compete for Commonwealth procurement opportunities and receive certain Commonwealth grants, creating a direct commercial as well as regulatory consequence.
Australian national media routinely report on published employer pay gaps, named non-compliant organisations and high-profile workplace gender equality issues. International coverage reinforces the direction of travel: the United Kingdom’s gender pay gap reporting regime is backed by Equality and Human Rights Commission enforcement powers, while the EU Pay Transparency Directive requires Member States to establish effective, proportionate and dissuasive penalties. Coverage of enforcement action, penalties and litigation can quickly turn technical reporting failures into brand, talent and investor issues.
- Develop a concise, evidence-based narrative for material movements in the reported gap.
- Ensure communications teams, investor relations, legal, HR and executives use consistent language and do not confuse a workforce gap with equal-pay analysis.
- Report actions, milestones and outcomes transparently, rather than relying on generic commitments.
4. Use composition analysis to drive better decisions
A changing gender pay gap is not automatically a failure. It may reflect business growth, acquisitions, changes in incentive timing or deliberate workforce redesign. However, unexplained movement is a governance risk. Leading employers build forward-looking analysis into workforce planning so that they can identify likely effects before decisions are finalised.
- Model the anticipated pay-gap impact of proposed executive appointments, graduate intakes, restructures and remuneration-cycle outcomes.
- Set representation and progression measures for critical feeder roles, not only senior leadership positions.
- Analyse bonus participation, performance ratings and discretionary awards for gender patterns.
- Allocate executive ownership, board oversight and clear timeframes to the gender equality action plan.
Practical checklist for HR and board leadership
- Confirm WGEA reporting data is complete, reconciled and supported by documented methodology.
- Review mean and median base-salary and total-remuneration gaps by level, occupation, business unit and employment type.
- Conduct separate like-for-like pay equity analysis and promptly investigate unexplained differences.
- Map gender flows through recruitment, promotion, performance, remuneration, leave and exit processes.
- Stress-test the likely effect of planned workforce changes on reported gender pay gap outcomes.
- Prepare board-ready dashboards, public-facing explanations and an accountable improvement plan.
- Verify WGEA compliance status ahead of Commonwealth procurement or grant opportunities.
Conclusion and next steps
Salary increases alone do not determine an employer’s WGEA gender pay gap. The mix of roles, seniority, incentives and workforce movement matters just as much. Organisations that combine disciplined reporting with pay equity analysis and strategic workforce planning are best placed to meet their legal obligations, explain their results confidently and create sustainable gender equality outcomes.
For a seamless path from compliance to strategic execution, Diversity Australia’s WGEA Readiness Tool and Consulting Services provide practical support to assess reporting readiness, interpret workforce composition drivers, strengthen governance and implement an effective gender equality action plan.