Women on average earn $25,534 less than men every year, according to the Workplace Gender Equality Agency's latest gender pay gap report.
The gender pay gap for total remuneration dropped just 0.7 percentage points to 20.1 per cent in the year to March, according to the report.
Women's average full-time base salary across all industries and occupations was 15 per cent, or $15,144 a year less than men's.
The report said while the gap was narrowing, all industries had a gender pay gap that favoured men, and more than 45 per cent of employers who undertook a pay gap analysis took no action to address it.
But access to paid parental leave is improving. More than 50 per cent of employers provided staff access to paid parental leave in addition to the government scheme.
Workplace Gender Equality Agency (WGEA) director Libby Lyons said even before the COVID-19 pandemic hit, Australian employers had become "complacent" about gender equality.
She said "fatigue" was kicking in at many organisations, which had been reporting data since 2013.
"They have now got to the point where they tick the box, but in order to drive changes you have to take action," Ms Lyons said.
The WGEA's data is based on 4,943 reports from employers, covering more than 4 million employees, for the reporting period April 1, 2019 to March 31, 2020.
It indicates women's overall position in the workforce. It does not compare like for like roles.
And it excludes CEOs, with just 10 of Australia's top 200 listed companies having a female chief executive.