Turnbull stands by gay marriage vote plan

Malcolm Turnbull is standing by the coalition government's commitment to hold a national plebiscite on legalising same-sex marriage.

All Australians will have a choice about how the issue is resolved at the next election, likely in 2016, he said.

"Labor will say vote for us and marriage equality will be dealt with by the politicians ... we will say, if we are re-elected to government, every single Australian will have a say," Mr Turnbull told parliament on Tuesday.