Time is running out to have your say in the same-sex marriage debate, with the survey closing in the coming weeks.
People are advised to mail back their forms by this Friday (October 27) to ensure that the vote arrives on time.
On Tuesday November 7 (6pm local time), the survey officially closes.
If forms aren't received until after this date, they will not be counted.
Results will be published on the ABS website on Wednesday November 25.