A flier suggesting people should be taxed based on their ethnicity has been circulated in Perth's western suburbs, falsely claiming to have come from The Greens.

The party says it has received numerous reports of the leaflets titled "Stop White Supremacy" appearing in letterboxes in Mosman Park, Cottesloe and possibly Nedlands.

The party says the flier proposes a "White Privilege Tax", uses the Greens branding and carries a fraudulent authorisation line.

Greens co-convenor Grahame Bowland said the party had referred the matter to the Australian and West Australian electoral commissions and would also notify police.

"The leaflet is frankly a piece of malicious fiction," he said.

"We know that they're fraudulent and clearly intended to stoke racial and religious tensions in the community so we're quite outraged by them.

"We've had a couple of dozen phone calls to our office today and a number of reports on social media so we think they've probably been quite widely distributed.

"People are generally confused, this isn't the message that they would normally hear from The Greens, we've always been a champion of equal rights for everybody regardless of their ethnicity, culture, religion, language or place of birth."

The party believes several people were involved in distributing the leaflets.

In April, fliers popped up around Fremantle exhorting "White Australians" to "love themselves".

One poster pictured a family from the 1950s, saying "The white family is a beautiful one".