[1] Allan is the longest-serving female minister in Victorian state history[2] and currently the most senior sitting member of the Assembly.

[12] She defeated incumbent Liberal state government minister Michael John as part of a large swing to Labor in regional Victoria.

During the Victorian Government's response to the COVID-19 health emergency, Allan became a member of the Crisis Council of Cabinet, serving as the Minister for the Coordination of Transport – COVID-19.

[21] On 8 February 2024, Allan delivered an apology to Victorians who experienced historical abuse and neglect as children in institutional care.

Security and police found themselves outnumbered by the rally, and Allan and the Australian prime minister were temporarily detained within the venue.

"ALP in both state and federal government is aiding and abetting the genocide of Palestinian people and must be called out and condemned at every opportunity," the statement said.

In 2024, she announced a proposal to overhaul planning rules to allow taller buildings and increased housing density near train and tram stations in Melbourne.

[25][26] Member of the Legislative Assembly for Bendigo East (1999–present) Premier of Victoria Allan is married to Yorick Piper, a former ministerial advisor, with whom she has two children.