IT'S DONE: Same-sex marriage is officially legal in Australia!

IT'S DONE: Same-sex marriage is officially legal in Australia!

He said "injustices are happening this day", noting the case of Catholic Archbishop of Hobart Julian Porteous and a Canberra women who was sacked from her work after a No post on Facebook.

"This is a day for every Australian".

It follows years of campaigning from the Australian LGBTIQ community and dozens of failed attempts to change the law. Taking into account the requirement to give a month's notice of intent to marry in Australia, we should be seeing the first same-sex weddings take place in January.

The only potential obstacle to the law passing on Thursday would be if marriage equality opponents managed to amend the legislation.

Prime Minister Malcolm Turnbull looked particularly pleased, though he was criticised on Twitter, and accused of trying to take credit for this.

Forster was joined in the public gallery by her partner, Virginia Edwards.

The overwhelming majority of MPs voted in favour of the bill, with only four MPs voting no. They were warned multiple times that parliamentary rules prohibit them making noise and even applauding.

Same-sex marriage could be legal as soon as Friday after a bill to change the Marriage Act passed the House of Representatives. On Thursday night, Queensland MP Bob Katter, who went viral for his dismissal of gay marriage in light of fatal crocodile attacks, delivered a 15-minute speech declaring that same-sex marriage was not of interest of gay couples because heterosexual couples weren't getting married either.

Turnbull told Parliament that while nothing in the bill threatened religious freedoms, he wanted more reassurances for the millions of Australians who oppose marriage equality.

However, the politics have not come to an end: Conservative cabinet minister Peter Dutton - a supporter of traditional marriage - accepted that in the end it was a numbers game in parliament.

Gay marriage was endorsed by 62 percent of Australian voters who responded to a government-commissioned postal ballot last month.

About 12.7 million people participated in the survey, which had a response rate of almost 80% - which is considered very high.

Many parliamentarians bared their personal history and pains in the lower house.