Australia Post is currently posting thousands of forms each day to reach the 16 million people on the electoral roll so they can have their say.
But as tempting as it is to post yours on social media to show your support authorities are warning people not to.
Authorities say it could it could jeopardise individual results, if people make public the unique barcodes on each form.
It's because the barcodes are designed to make sure each eligible person only votes once.
IMAGE: Wave FM's Cei Saunders