A few years ago I joined an organisation focused on getting a better gender balance in NZ’s leadership. There, I discovered that the gender pay gap was not the same as unequal pay for the same work. The first is common, and annoyingly legal. The latter, though still sometimes happening, is illegal (in NZ and the UK, at least).
It comes down to this: there are more men in higher paying roles and sectors (e.g. management, tech) and more women in lower paying roles and sectors (e.g. admin, education).
It can be a little tricky, so here’s my infographic to help clear up the difference: (click image for larger size)