CG30600 | Death and Personal Representatives: Personal representatives and their liabilities: Personal representatives: annual exempt amount
From HM Revenue & Customs · Capital Gains Manual
TCGA92/S1K (7)
In assessing gains arising to personal representatives in that capacity during the administration period the full amount of the annual exemption should be allowed in an assessment
for the tax year in which the individual dies no matter how short this period is, and
for the two years of assessment following the tax year in which the individual died.
No such exemption should be allowed in any assessment raised for any subsequent year during which the period of administration continues, see CG18010.