Could a change be afoot in the way Australians vote in federal elections? The Coalition government may be eyeing a shift to optional preferential voting — as used in New South Wales — which allows voters to simply vote “1” or allocate only a partial list of preferences on their ballot, instead of a full ordering of preferences for every candidate. The proposal was included in a series of potentially revolutionary changes to our electoral system that were quietly released by a parliamentary committee in December, when few people were paying attention. The joint standing committee on electoral matters claimed a shift to optional preferential voting would help address rising rates of “informal voting” in NSW caused by the differences between the state and federal systems. The reason: a valid vote at the state level with less than a full list of preferences would be invalid if repeated at a federal election.