We celebrate Australian Citizenship Day each year on 17 September. The day is an opportunity for all Australians to reflect on the meaning and importance of Australian citizenship and responsibilities and privileges we have as citizens. It is a day to celebrate Australian citizenship.
Further information is available on the Department of Home Affairs’ citizenship website.
In accordance with flag protocol, Australian Government departments and associated portfolio agencies are requested to fly or display the Australian National Flag all day on Wednesday, 17 September 2025 to celebrate Australian Citizenship Day. State, territory and local government bodies, as well as non-government organisations, are also welcome to follow this protocol.
Information on flag protocol can be found on the Department’s website.
Your assistance is appreciated.
Commonwealth Flag Officer