Form IHT407 is a supplementary schedule to the IHT400 ( IHTM10021). On the form, we ask the taxpayer to
If any items have been sold, we ask the taxpayer to state the
gross sale proceeds and, when the sale of any item has been for
less than the market value, we instruct the taxpayer to include the
full open market value on the IHT407.
We ask the taxpayer to attach a copy of any professional
valuation which they may have obtained.