Q. How do you think a decision on legalising same sex marriage should be made?
| Total | Vote Labor | Vote Lib/Nat | Vote Greens | Vote other | Should be allowed to marry | Should not be allowed to marry | ||
| A vote in Parliament where politicians can vote according to their conscience or party policy | 23% | 28% | 22% | 39% | 18% | 29% | 12% | |
| A national vote which is binding on Parliament | 50% | 49% | 54% | 33% | 57% | 53% | 56% | |
| A non-binding national vote which is followed by a vote in parliament where politicians can vote according to their conscience or party policy | 9% | 9% | 9% | 11% | 11% | 8% | 15% | |
| Don’t know | 17% | 14% | 15% | 17% | 14% | 10% | 17% |
50% of respondents want a national vote that is binding on Parliament, 23% want a vote in Parliament without a national vote and only 9% want a national vote followed by a vote in Parliament.
Those most likely to favour a vote in Parliament without a national vote were Greens voters (39%), aged 65+ (32%), university educated (29%) and those who support same-sex marriage (29%),
Note – previous poll questions were asked with 2 options – Should be decided by Parliament 29%, Should have a national vote 59%, Don’t know 12%. (last polled July 2017)