Record numbers for the Australian same-sex marriage postal vote.

WITH less than a month to go more than 10 million Australians have cast their votes in the $122 million same-sex marriage postal vote.

Weekly update figures released by the ABS today revealed 10 million (62.5 per cent) of survey forms have been returned — up an estimated 800,000 from a week ago, when 57.5 per cent of forms had been returned.