Now the federal election has been announced eligible Australians living or visiting overseas are being urged to ensure they are enrolled to vote.
Electoral Commissioner Tom Rogers said Australians overseas can enrol up until the deadline of 8pm (AEST) 23 May 2016.
"If you've been overseas for less than three years you may be eligible to enrol to vote for the federal election," Mr Rogers said.
If you are not enrolled, and you have been overseas for less than three years, you are eligible to enrol if you are an Australian citizen aged 18 years or older and you are intending to return to Australia within six years of your date of departure.
"To enrol from overseas you need to complete an enrol to vote for federal elections from outside Australia form and return it to the AEC before 8pm (AEST) on Monday 23 May."
Completed enrolment applications can be scanned and uploaded, faxed or returned by post to the reply paid Australian Electoral Commission address available on the form.
"Australian citizens currently living or travelling overseas can check their enrolment details online."
Once enrolled, overseas Australians will be able to vote in the 2016 federal election by post or in person at some Australian diplomatic missions or consulates.
More information on overseas voting, including a full list of overseas voting centres.