The gender pay gap gets a lot of airtime. But here’s what I see in practice – many organisations are reporting it only because they have to, and there’s little understanding of the reasons behind it.
And if we don’t understand it properly, we can’t fix it properly.
So I wanted to break it down clearly, practically and without defensiveness.
Looking at the Gender Pay Gap is not about placing blame and pointing fingers. It’s about making a change. It’s progress!
What Is the Gender Pay Gap and How Does It Differ from Equal Pay?
Equal pay is paying women and men the same for the same job. That’s a legal requirement.
The gender pay gap is different.
It measures the difference between the average earnings of women and men across an organisation. It’s not about one person being paid unfairly — it’s about patterns, structure and representation.
And that’s where it gets interesting, because your gender pay gap is rarely about one decision. There are usually systemic issues that have compounded over time to contribute to the gap.
Three Ways to Analyse the Gender Pay Gap
When I conduct a gender pay gap analysis, I don’t look at just one number, I look at three lenses.
1. Organisational-Wide Gap
This compares the average pay of women to the average pay of men across the whole company.
This tells you:
- Who holds higher-paid roles
- Who accesses bonuses and allowances
- Whether leadership representation is balanced
- Gender distribution at senior levels
This is your structural lens.
2. By-Level Gap
This compares women and men at the same classification or organisational level.
This helps you see:
- Whether pay progression is equitable
- Whether discretionary payments are consistent
- Whether loadings or bonuses favour one group
This is your governance lens.
3. Like-for-Like Gap
This compares women and men performing the same or comparable roles.
This is where you examine:
- Starting salary differences
- Negotiation impacts
- Pay progression over time
This is your fairness lens.
If you look at each lens together, you will build an accurate picture of what is causing the pay gap.
The Game Changer – Regression Analysis
If you really want to delve into the pay gap, you can shift from surface-level reporting to genuine insight.
Regression analysis allows us to isolate the impact of gender on pay while controlling for other variables such as tenure, level, employment type, hours worked and performance-related factors.
In simple terms, it answers the question:
If two employees are the same in every measurable way — same level, similar tenure, similar employment status — does gender still influence pay?
Sometimes the gap reduces once structural variables are accounted for, and sometimes it doesn’t.
And when it doesn’t, that’s when organisations gain clarity on whether systemic bias may be embedded in pay progression, discretionary decisions, or access to opportunities.
Regression testing removes assumptions and replaces opinion with evidence.
Why the Gender Pay Gap Exists in Organisations
In almost every organisation I’ve worked with, the gap isn’t caused by one dramatic issue.
It’s usually the accumulation of:
- Fewer women in senior or revenue-driving roles
- Higher rates of part-time work
- Career interruptions related to parental leave
- Informal promotion pathways
- Negotiation-based starting salaries
- Bonus structures that favour visibility over contribution
It’s rarely intentional, but it is measurable. And once you can measure it, you can manage it.
How to Measure the Gender Pay Gap Accurately
If you want real insight, not surface-level reporting, you need:
- Clean, validated workforce data.
- Clear methodology (mean, median, base salary or total remuneration?)
- Regression modelling to isolate the impact of gender.
- Intersectional analysis (gender + age, cultural identity, employment status and more).
When you move beyond a single percentage and start modelling the variables, you really understand why the gap exists and what can be done to fix it.
Improving the Gap
Now to share some tips I’ve learnt:
- Conduct regular pay equity reviews, so it’s not a one-off compliance exercise.
- Introduce structured salary bands to reduce reliance on negotiation and standardise starting salaries.
- Have clear promotion criteria – this will reduce bias.
- Review bonuses and allowances to ensure they are awarded transparently, consistently and equitably.
- Look at ways to strengthen career continuity, such as return-to-work support, flexible pathways to promotion, leadership sponsorship, and flexible work for those in senior positions.
- Focus on representation at senior levels. Most company-wide pay gaps are due to the underrepresentation of females in senior roles. Fix the pipeline to shift the narrative.
Here’s the Zesty Bit
The gender pay gap is not a compliance metric. It’s a leadership metric. It tells you how your systems are really functioning. It tells you who is progressing, who is rewarded, who is visible, and who may be quietly overlooked.
Handled properly, it becomes one of the most empowering pieces of workforce insight you can have.
Final Thought: Designing Workplaces for Pay Equity
The organisations that make meaningful progress are the ones willing to ask better questions:
- What does our data really show?
- Where are our structural patterns?
- Are we rewarding performance — or proximity?
- Are we designing work in a way that enables equity?
The gender pay gap is not about criticism, it’s about clarity.
If you haven’t looked properly at your data recently — not just reported it but actually analysed it — now is the time.
Because equity is designed.
Ready to Take the Next Step?
Work With Zest.
At Zest, we help organisations move beyond surface-level gender pay gap reporting into real, actionable insights.
Understanding your gap isn’t about compliance, it’s about clarity. When you can see the structural, governance and like-for-like drivers behind your data, you’re in a far stronger position to take meaningful action.
We partner with organisations to analyse workforce data, apply regression modelling, and uncover what’s truly influencing pay outcomes.
If you’re not ready to work with us just yet, that’s okay.
Start with our free WGEA: Readiness, Risk and Reporting Toolkit, designed to help you interpret your gender pay gap data, strengthen your methodology, and prepare for more informed, confident reporting.