Q. How likely are you to vote in the national postal vote on same-sex marriage?
| Total | Vote Labor | Vote Lib/Nat | Vote Greens | Vote other | 5 Sep | 19 Sep | |||
| Will definitely vote | 45% | 42% | 50% | 34% | 49% | 62% | 62% | ||
| Will probably vote | 8% | 8% | 9% | 8% | 8% | 16% | 12% | ||
| Will probably not vote | 1% | 2% | 2% | 2% | 1% | 4% | 2% | ||
| Will definitely not vote | 2% | 3% | 3% | <1% | 3% | 3% | 3% | ||
| Not sure | 5% | 5% | 4% | 6% | 2% | 10% | 8% | ||
| I have already voted | 36% | 38% | 32% | 49% | 36% | – | 9% | ||
| I am not enrolled to vote at my current address | 3% | 2% | 1% | 2% | 1% | 4% | 5% |
| Total | Men | Women | Aged 18-34 | Aged 35-54 | Aged 55+ | Support same sex marriage | Don’t support same sex marriage | |||
| Will definitely vote | 45% | 47% | 42% | 48% | 42% | 45% | 44% | 52% | ||
| Will probably vote | 8% | 10% | 6% | 13% | 8% | 3% | 6% | 8% | ||
| Will probably not vote | 1% | 2% | 1% | 3% | 2% | 1% | – | 3% | ||
| Will definitely not vote | 2% | 3% | 1% | 1% | 3% | 2% | 1% | 4% | ||
| Not sure | 5% | 4% | 6% | 4% | 7% | 3% | 1% | 3% | ||
| I have already voted | 36% | 30% | 41% | 27% | 36% | 45% | 44% | 28% | ||
| I am not enrolled to vote at my current address | 3% | 3% | 3% | 4% | 3% | 2% | 4% | 2% |
45% (down 17% from a week ago) say they will definitely vote in the same-sex marriage national vote while 36% (up 27%) say they have already voted.
88% of those in favour of same-sex marriage say they will definitely vote or have voted compared to 80% of those opposed.