How can probate valuation impact inheritance tax calculations and future property sales?

A probate valuation can affect both the inheritance tax position of an estate and the tax treatment of a later property sale. Its purpose is to establish the property’s market value at the date of death, rather than its value when the valuation is commissioned or when the property is eventually sold. That figure should therefore be supported by appropriate evidence and used consistently in the estate records.

Effect on inheritance tax

Inheritance tax is assessed by reference to the value of assets passing through the estate, subject to applicable exemptions, reliefs, debts and the available tax-free allowances. A property is often one of the estate’s most valuable assets, so an inaccurate valuation can materially affect the calculation submitted to HM Revenue and Customs.

• An undervaluation may cause the estate to report too little value and pay too little tax. This can lead to further enquiries, a revised liability and possible interest or penalties.
• An overvaluation may result in the estate reporting a liability that is higher than necessary, although the wider estate position and any reliefs still need to be considered.
• A well-supported valuation gives the executors a defensible basis for the figures in the inheritance tax account and probate application.

The valuation should reflect the property’s condition, location, tenure, planning position, restrictions and any other feature that would influence what a willing buyer might have paid at the date of death. It should not simply reproduce an estate agent’s optimistic asking price. Where the property is jointly owned, the deceased’s legal interest and the terms of ownership also need to be considered rather than automatically treating the whole property as part of the estate.

Why the valuation matters after probate

If the property is sold after the date of death, the probate figure normally acts as the estate’s starting value for considering any later gain or loss. The sale price is compared with that starting value, alongside allowable costs and other relevant adjustments. A rise in value between the date of death and completion may create a capital gains tax issue, while a fall in value may affect the estate’s calculation in a different way.

Inheritance tax and capital gains tax are separate calculations. Paying inheritance tax does not automatically remove a later capital gains tax liability, and a sale price below the probate value does not by itself alter the original inheritance tax calculation. The personal representatives should keep the valuation, marketing evidence, sale particulars, completion statement and records of eligible costs so that the movement in value can be explained.

What happens if the eventual sale price differs?

A different sale price is not necessarily evidence that the original valuation was wrong. The housing market may have changed, or the property may have required repairs, remained on the market for a prolonged period, or sold under circumstances that affected the price. However, a significant difference should be reviewed, particularly if the sale takes place soon after the valuation or there were known defects and restrictions that were not considered initially.

Where a property sells for less than the probate value, the executors should retain evidence explaining the outcome. Where it sells for more, the increase may need to be considered when preparing the estate’s tax reporting and accounts. The timing of the sale, the identity of the seller and whether the property was transferred to a beneficiary before sale can all affect the relevant calculation.

Practical steps for executors

1. Obtain a written valuation prepared for the date of death, with the assumptions and property details clearly recorded.
2. Give the valuer information about condition, alterations, leases, rights of way, planning matters and any factors that could reduce or increase market value.
3. Use the valuation consistently in the inheritance tax account, estate accounts and later sale records.
4. Keep comparable evidence and details of any subsequent repairs, marketing difficulties or changes in the local market.
5. Ask a solicitor, accountant or tax adviser to review the position where the estate is substantial, the property is jointly owned, reliefs may apply or the sale price differs materially from the valuation.

A careful probate valuation does not determine the final tax bill on its own. It provides the property figure on which the wider estate calculation and any later change in value can be assessed. Accurate documentation at the outset can make it easier to explain the inheritance tax return and deal with the property sale without confusing the date-of-death value with its later market price.