IHTM30218 | Transfers on death: unquoted shares - undue hardship

From HM Revenue & Customs · Inheritance Tax Manual

From 6 April 2026, unquoted shares which attract Business Relief (BR) will also be eligible for interest free instalments () see IHTA/S227(2)(aa) and IHTA/S234(1)(a)). See also and .

If BR is not available, unquoted shares or securities that do not represent a control holding () of a company qualify for instalments if the Board are satisfied that the tax attributable to their value cannot be paid in one sum without undue hardship.

You should refer any claim for instalments under immediately to your manager. Further instructions on the operation of are given in connection with potentially exempt transfers (PETs) ().