When calculating the value of an estate for Inheritance Tax (IHT400 form), accuracy is non-negotiable. HMRC requires the “Quarter-Up” valuation method for listed shares.
However, a dangerous grey area exists: Lost & Unclaimed Shares.
The “Hidden” Tax Liability If you discover a lost shareholding after Grant of Probate has been issued:
- You must report it: You have a legal duty to report the additional asset to HMRC using a “Corrective Account” (C4) form.
- Interest Penalties: If the extra tax is paid late (usually 6 months after the end of the month of death), HMRC will charge interest.
- The Dividend Trap: It isn’t just the share value that is taxable. The accumulated unclaimed dividends (which might be sitting in a dormant account) are also part of the estate’s value.
Example Scenario
- You value an estate at £320,000 (just under the £325k IHT threshold).
- Six months later, you find lost Shell shares + dividends worth £15,000.
- Result: The estate is now worth £335,000. It is liable for IHT. You now face a complex tax calculation, potential fines for late reporting, and angry beneficiaries who thought the process was over.
Due Diligence is Your Defence Executors must demonstrate they made “reasonable enquiries” to find all assets. Running a Divica search on the deceased’s name against major registrars serves as proof of due diligence, protecting you if assets appear later.
Accurate “Date of Death” Valuations Don’t guess. Divica Pro provides precise historical pricing data, ensuring your IHT412 schedule is accurate from day one.