TSEM6058 | Legal background to trusts and estates: executors and HMRC
From HM Revenue & Customs · Trusts, Settlements and Estates Manual
Upon the death of a person the personal representatives become the legal owners of the deceased's estate. If they leave a valid will they will be named as executors and will be authorised to act by a grant of probate (in Scotland, confirmation).
Normally HMRC will not request sight of the will and probate (confirmation) for income tax purposes. But, it may be needed if
there are doubts about the time limits for an instrument of variation and/or an election or statement of intent under Section 142 IHTA 1984 or TCGA92/S62(7)
it is required as part of a formal SA enquiry
a submission is needed in relation to a deed of variation/family arrangement executed (TSEM1815).
More detailed advice is at TSEM7220.
When the executors wind up the estate, they pay out the assets. HMRC may ask who received them.