Tampons and pads will no longer be hit with a 10 per cent tax starting from tomorrow, New Year's Day.

The Federal Government has signed the documentation that officially removes the GST on feminine hygiene products , ending a two-decade campaign.

It comes three months after the states and territories unanimously agreed to ditch the tax on women's products, despite the expected $30 million cost a year in GST revenue.

The GST on sanitary items has long been described as unfair because other health products including condoms and Viagra are exempt.

Nicole Byers, editor-in-chief of The Australian Women's Weekly , said the reform comes after 18-years of campaigning by many thousands of women and organisations across the country and follows a concerted campaign in 2018 by Bauer Media, publisher of The Weekly and other magazines and websites (including Now to Love ) and magazines for women.

"This is a great win for women," Byers said. "Bauer has been the latest of many to push for the tax to be removed – this has been a hard earned win for a reform that should have happened decades ago."