CTM04850 | Corporation tax: CT loss reform: group relief for carried-forward losses
From HM Revenue & Customs · Company Taxation Manual
CTA10/PART5A
Following F(2)A/S17, companies can surrender certain types of carried-forward losses to another company in the same group relief group (CTM80151). The losses must have been incurred on or after 1 April 2017 and have been carried-forward under a provision that allows for relief against total profits (CTA10/S188BB and S188BC).
Group relief for carried-forward losses is also available to consortia.
More detailed guidance on group relief for carried-forward losses can be found at CTM82000.