With the reduction in the annual allowance on 6 April 2011 came a facility to carry forward unused allowance from previous years once the allowance for the current year has been exhausted. The conditions are:
(1)Unused allowance may be carried forward to the current tax year from the immediately preceding three tax years, starting with the earliest year.
(2)The earliest year in which the facility became available was 2011–12, allowing unused allowance from 2008–09 to be carried forward.
(3)In 2015–16, the unused allowance must be absorbed at the earliest opportunity starting with 2012–13 and after the allowance for the current year has been exhausted.