Not a requirement in Australia, but makes it easier for the election officers to find you if you show your driver's licence or something. IIRC, one year, many years back, they mailed everyone something with their details on to show election officers to make things go faster, but it wasn't required.I don’t ever remember having to provide ID when I vote. It’s always just been my name, and my address. It gets crossed out on the electoral roll at the polling station and that was it.