The short answer
Compulsory voting, notices and valid reasons explained
Compulsory voting in Australia means that every eligible Australian citizen aged 18 or older is required by law to enrol and to vote in federal elections. After each federal election the Australian Electoral Commission compiles a list of enrolled persons who appear not to have voted and sends each of them an apparent failure to vote notice. The recipient has a set period to respond by either providing a valid and sufficient reason for not voting or paying an administrative penalty. Valid reasons include illness, being overseas on election day, religious objection, natural disaster preventing travel, or other circumstances beyond the person's control. Simply forgetting to vote or being too busy is generally not accepted as a valid reason. If a person does not respond, does not provide a sufficient reason, or does not pay the penalty, the matter may be referred to court where a fine may be imposed. The process is administrative and graduated rather than punitive, and the AEC handles millions of such notices after each election.
This guide explains the federal position first. State, territory and local elections can use different rules, dates and ballot systems, so the commission named on your election material is the final operational source.
The useful question is not only “what is the rule?” but also “who administers it, which document controls it, and when might it change?” That distinction prevents an accurate general explanation from becoming wrong advice in a particular election, chamber or policy setting.
Evidence review
The legal basis of compulsory voting
Compulsory voting at federal elections is established by section 245 of the Commonwealth Electoral Act 1918. The section creates an obligation for every elector to vote at each federal election. Failure to vote without a valid and sufficient reason is an offence, with a maximum penalty set by the Act. Compulsory voting was introduced for federal elections in 1924 following a decline in turnout at the 1922 election, where only around 59 per cent of enrolled voters cast a ballot. Since the introduction of compulsory voting, voter turnout at Australian federal elections has consistently exceeded 90 per cent. The obligation to enrol is found in section 101 of the Act and failure to enrol is also an offence. The AEC plays an educative role, working to help Australians understand their obligations and making voting as accessible as possible through early voting, postal voting, mobile polling and overseas voting services.
Evidence review
How the apparent failure to vote notice process works
After a federal election or referendum, the AEC cross-references the certified lists of electors marked at polling places against the electoral roll to identify enrolled persons whose names were not marked off. Each such person is sent an apparent failure to vote notice, often referred to informally as a 'please explain' letter. The notice explains that the AEC's records indicate the person did not vote and invites them to respond. The response options are to state that the person did in fact vote and provide details that would allow the AEC to verify this, to provide a valid and sufficient reason for not voting, or to pay an administrative penalty. The notice includes a deadline for response, typically around 21 days. If the person responds with a valid reason the matter is closed without penalty. If the person pays the penalty the matter is similarly finalised.
Evidence review
What counts as a valid and sufficient reason
The Commonwealth Electoral Act uses the phrase 'valid and sufficient reason' without providing an exhaustive list, leaving the AEC and ultimately the courts to determine what qualifies on a case-by-case basis. Accepted reasons include illness or infirmity that prevented attendance, being more than a specified distance from a polling place on election day, travel or residence overseas, religious beliefs that prohibit political participation, natural disasters such as floods or bushfires, and caring responsibilities for a person who required continuous attention. Objecting to compulsory voting on philosophical grounds is generally not accepted as a valid reason. Being unable to decide whom to support is also not a valid reason because Australian ballot papers allow voters to cast a formal vote without endorsing any candidate. The AEC assesses each response on its merits. If the reason is not accepted, the person is notified and given an opportunity to provide further information or pay the penalty.
Evidence review
Penalty amounts and court proceedings
The administrative penalty for not voting is set by regulation and is typically around 20 dollars. This is not a fine imposed by a court but an option available to the person at the notice stage. If a person does not respond to the notice, does not provide a valid reason, and does not pay the administrative penalty, the AEC may refer the matter to a court. If a court finds the person guilty, it may impose a fine which is higher than the administrative penalty, and the person may also be ordered to pay court costs. Court proceedings are relatively rare given the large number of apparent non-voters after each election, but they demonstrate that the obligation is enforceable. A person who pays the administrative penalty or is fined by a court has not committed a criminal offence in the usual sense and the matter does not result in a criminal record of the kind that would appear on a police check.
Evidence review
What happens if you are not enrolled or your details are wrong
The compulsory voting obligation applies only to persons who are enrolled. If a person is eligible but not enrolled, they will not receive an apparent failure to vote notice because the AEC has no record of them on the roll. However failure to enrol is itself an offence under section 101 of the Act. The AEC uses data-matching with other government agencies to identify potentially eligible but unenrolled persons and sends them enrolment forms. If your name has changed or you have moved address without updating your enrolment, you may be incorrectly recorded on the roll and your name may not appear on the certified list when you attend a polling place. In this case you will be given a declaration vote and the AEC will check your enrolment status when the declaration vote is processed. You should update your enrolment as soon as possible to avoid this situation. Enrolment can be updated online through the AEC website in a matter of minutes.
Evidence review
State and territory compulsory voting differences
Compulsory voting also applies at state and territory elections in most Australian jurisdictions, with some differences. South Australia does not have compulsory voting for local government elections and New South Wales does not compel voting at local government elections. Western Australia's local government elections are voluntary. The state and territory electoral commissions administer their own apparent failure to vote processes independently of the AEC. A person who did not vote at a federal election may also receive a separate notice from their state electoral commission if they did not vote at a state election held around the same time. The valid reasons accepted at the state and territory level may differ from those accepted by the AEC. A voter who has a genuine reason for not voting should respond to each notice separately with the relevant explanation.
Common questions
Before you rely on the answer
What if I simply forgot to vote?
Forgetting to vote is generally not accepted as a valid and sufficient reason by the AEC. The AEC runs extensive public information campaigns before each federal election and voting is available over several weeks through early voting centres. You will likely need to pay the administrative penalty if forgetting was the only reason.
Can I be sent multiple failure to vote notices for the same election?
No. The AEC sends one apparent failure to vote notice per election per person. If you respond to that notice the matter is resolved. If you are an enrolled voter who did not vote and do not receive a notice, it does not mean you are in the clear: the AEC may have a different or outdated address for you, and failure to update your enrolment details is itself an offence.
Will not voting affect my credit rating or appear on a police check?
No. The apparent failure to vote process is administered under electoral law and is not reported to credit agencies. An administrative penalty or a court fine for failing to vote does not result in a criminal conviction that would appear on a standard police check. It is an electoral offence rather than a criminal offence in the general sense.
What if I was overseas on election day?
Being overseas on election day is generally accepted as a valid and sufficient reason for not voting, provided you were genuinely overseas and not able to access an overseas voting centre or postal voting. However if you were overseas in a location where the AEC provided overseas voting services, you may be expected to have taken reasonable steps to vote. Provide details of your travel when you respond to the notice.
Source spine
Primary material used for this guide
- Enrol to vote - Australian Electoral Commission — checked 2026-07-17
- Commonwealth Electoral Act 1918 - Federal Register of Legislation — checked 2026-07-17
Review trigger: Amendment to section 245 or section 101 of the Commonwealth Electoral Act 1918 changing the compulsory voting obligation or the penalty regime. Change to AEC policy on what constitutes a valid and sufficient reason. Introduction of voluntary voting at federal elections.
Archive note: Written from the AEC Enrol to Vote page and the Commonwealth Electoral Act 1918 as compiled on the Federal Register of Legislation (C2025C00123). Both sources verified 17 July 2026. Compulsory voting provisions are in Part XXI of the Act, including section 245. State and territory compulsory voting laws differ and are administered by the relevant state electoral commission.
Primary links are provided without affiliate or tracking parameters. Confirm that the source still applies to the bill, sitting date, jurisdiction or reporting period before relying on it.