IHTM10091 | National Savings investments (box 54): investments to be included in the estate
From HM Revenue & Customs · Inheritance Tax Manual
The following should be included in box 54 of the IHT 400 and in box 4 of form IHT206
National Savings Certificates
National Savings Capital or Deposit Bonds
National Savings Income Bonds
Pensioners Guaranteed Income Bonds
Children’s Bonus Bonds
First Option Bonds
Save As You Earn Contracts
Year Plans
National Savings Bank accounts should be included at box 2 of the IHT406.
Taxpayers are asked to include details of the investments and figures for the capital and interest owed, but not paid, up to the date of death.