Whether shares in a company are liable for Inheritance Tax (IHT) depends on a number of factors. Perhaps the most obvious factor is whether the level of estate is above the IHT threshold. If the value of the estate is less than £325,000, no IHT is payable. However, if the value of the estate is more than £325,000, the liability for IHT on the shares depends on whether the shares are held in a quoted company or a private unquoted company. Business property relief applies to certain types of shares and business assets owned by the deceased.