Let's be honest. When we hear the phrase "gender pay gap", most of us picture two colleagues doing the same job, one pocketing a full pay packet and the other getting the discounted version.

It's a simple story. It's also not the whole one.

Yes, paying someone less for the same job because they're a woman is illegal. But the latest data shows that the real story unfolding in Australian workplaces is far more slippery than that — and a lot harder to spot.

The new 2024–25 Employer Gender Pay Gaps Report from the Workplace Gender Equality Agency (WGEA) has just been released. On paper, the headline sounds positive.

The gap has closed by another 0.9 per cent, bringing the gender pay gap down from 12.1 per cent in 2023–24 to 11.2 per cent in 2024–25.

The gap is shrinking. Progress! Celebration! Pop the prosecco!

Except. There's a catch.

If you've ever had that nagging feeling that you're working just as hard as the men around you, hitting the same KPIs, staying late, delivering results — and yet your bank account isn't quite keeping pace — you're not being dramatic. And you're definitely not imagining it.

Because the gap isn't just about base salary. It's about everything wrapped around it.

Mamamia's The Quicky podcast recently spoke with Minister for Finance and Minister for Women, Katy Gallagher, about the 'quiet killer' in the gender pay gap: discretionary pay.

Essentially, that's bonuses, overtime, allowances and all those little extras that don't show up in your contract headline number but absolutely show up in your take-home pay.

Listen to The Quicky discuss the gender pay gap. Post continues below.

When we look only at discretionary pay, the midpoint gender pay gap blows out to 29.7 per cent. In other words, men are getting at least 30 per cent more than women in those add-ons, even when base salaries are even, on average.

That's not an accident. That's a structural problem.

It's about how employers reward (or don't) employees who stay back late. How they decide who gets put up for bonuses. And it's where the next fight is likely to be.

"The gender pay gap is continuing to trend down, but in many industries, it's still enormous, and for areas and jobs where you get paid bonuses, that seems to now be the area we need to focus on," Gallagher told The Quicky.

"It's not [just about] your base rate, it's all the things that you get on top of that."

To tackle it, the government are focusing on transparency, so these payments cannot be negotiated behind closed doors. And that starts with the type of data companies must share.

According to Wojcer, 68 per cent of employers now run some kind of gender pay gap analysis, but only a quarter of those do a truly comprehensive one that looks at promotions, hiring, resignations, leave and pay.

That means most companies are glancing at salary data without painting the full picture.

Gallagher says that reports from company boards are tackling the salary pay gap, but when you look at discretionary pay, the truth "hits you in the face".

"We'll need to do some more work on it to understand it; where there are bonuses being paid, or payments outside standard remuneration," she says.

"That's clearly an area where men are doing a lot better, and it may be that they are more prevalent in those industries which are male-dominated. I'm sure that is part of the reason, but that doesn't excuse it.

"This is why we ban pay secrecy clauses and things like that."

Watch: Katy Gallagher in 2024, talking about Australia's substantial 'pay gap' problem.

But even if every company in Australia magically fixed discretionary pay tomorrow, we'd still have a major issue. Because who is sitting in which chair matters just as much as what that chair pays.

The data shows a clear "layer cake" effect across workplaces. Men are 1.8 times more likely to occupy the highest-earning roles, where average pay sits at more than $220,000. Women, meanwhile, are 1.4 times more likely to be in the lowest-earning roles, where average pay hovers around $60,000.

This is the glass ceiling in action. It looks like who gets tapped on the shoulder for a stretch assignment. Who is encouraged to apply for that leadership role. Who is assumed to be "ready." Who is quietly overlooked.

Gallagher is clear that "coasting" isn't going to cut it anymore.

The expectation now is that senior management will not just collect data, but act on it. Because a spreadsheet doesn't change anything unless someone uses it to make different decisions.

And here's where it gets interesting.

From 2026, large employers with more than 500 staff will be legally required to set and meet gender equality targets.

In the meantime, WGEA's public Data Explorer allows you to look up your current employer — or a future one — and see their gender pay gap data. It's not about shaming. It's about information.

And information is power.

Featured image: Getty.