The economic hardships of the period resulted in a few volunteers, and in 1930 the 49th Battalion merged with the 25th to form the 25th/49th Battalion, but in 1934 the two battalions were delinked and the 49th was amalgamated with the 9th Battalion.
The economic hardships of the period resulted in a few volunteers, and by December 1929 the 49th Battalion's strength had fallen to just 108 men of all ranks. As a result, in early 1930 the 49th Battalion merged with the Toowoomba-based 25th to form the 25th/49th Battalion.