23/09/2017 2:21 PM AEST | Updated 25/09/2017 7:12 AM AEST

Malcolm Turnbull Ticks 'Yes' For Marriage Equality

The PM has posted his survey.

Twitter/Malcolm Turnbull
Malcolm Turnbull has cast his marriage equality postal vote,

Prime Minister Malcolm Turnbull has released a video showing him answering a national postal survey in favour of same-sex marriage.

Turnbull posted the short clip, which appears to have been filmed in a kitchen, on Twitter on Saturday afternoon.

In the video, Turnbull appears alongside his wife Lucy and says he has answered 'Yes' because it's fair.

"It's important that everybody has their say," Turnbull says.

The video, released amid ongoing controversies related to the postal survey, also shows the pair walking to a post box to send off a completed form.

The release of the footage comes on the same day as opponents of same-sex marriage rally in Sydney, while those in favour of marriage equality are door knocking across the country.

The coalition has implemented the $122 million postal survey as a way to decide the gay marriage question and has been heavily criticised by Labor and the Greens for not simply voting on the issue in parliament.

Correction: An earlier version of this story referred the same-sex marriage survey as a "vote". In fact, it is a non-binding, non-compulsory postal survey.