Supporters of the "Britain Stronger IN Europe" group campaign in the lead up to the EU referendum, at Soho in London, Britain June 22, 2016. [Photo/Agencies]

Ellie Warren, who has lived in Australia for almost five years, voted for Britain to remain in the EU as the Brexit campaign was made up of scare tactics and "fear-mongering".

"Economics is the most obvious reason, but I can't stand the 'leave' campaign, which is just fear-mongering and racist," she told News Corp.

Meanwhile other expats were concerned by the strain on the nation's welfare system under the liberal immigration policy under the EU.

"They're letting too many people into the country and letting them live on benefits straight away without working," Jackie Lamburn, who supports Brexit, told the Australian Broadcasting Corporation.

Australian politicians have also weighed in on the debate, with Prime Minister Malcolm Turnbull saying that an exit from the EU would cause "a degree" of global economic "shock", while Foreign Minister Julie Bishop said remaining in the EU would be better for Australia.

"To have a like-minded partner within the European Union would be in Australia's interest," Bishop said earlier this week.