In November 1941 it was placed on a lower establishment, and on 20 December 1942 was redesignated 49th Infantry (Reserve) Division, and the changes in organisation were implemented during 1943, with 145 Brigade leaving in November.
In November 1941 it was placed on a lower establishment, but gained a tank training brigade, and on 20 December 1942 was redesignated 48th Infantry (Reserve) Division. The changes in organisation were implemented during 1943, with 10th Tank Brigade leaving in September and 145th Brigade in November.