Allan started his career in the Victorian Football Association where he took the field for Sunshine, and he finished third in the J. J. Liston Trophy count in 1974.
[1] He debuted at Fitzroy in 1975 and became a good utility player, often used as a centreman.
Collingwood acquired his services in 1981 and he participated in that year's Grand Final, on the half back flank.
During his time in the VFL he represented the league at interstate football.
Since retiring as a player, Allan has continued to be involved in football as an administrator, at Collingwood, Brisbane Lions, Greater Western Sydney and St Kilda Football Clubs.