According to the search results, the cost of the 2023 Australian Indigenous Voice referendum is $75.2 million (excluding Contingency Reserves) over two years (FY2022–24) . The funding was provided to the Australian Electoral Commission (AEC) and National Indigenous Australians Agency in the October 2022 Australian federal budget. The cost breakdown is as follows:

• $52.6 million for the Australian Electoral Commission to prepare for and deliver the referendum
• $16.1 million for the Australian Electoral Commission to increase the percentage of eligible First Nations people registered to vote
• $6.5 million for the National Indigenous Australians Agency to support preparations for the referendum, including the relevant governance structures

It is worth noting that one of the constitutional law experts believes that the cost of the referendum will be about $450 million. However, this figure is not supported by other sources and is likely an overestimation.