How to Value a Property for Probate

When someone dies and leaves a property, you must value it for probate. This valuation determines how much inheritance tax (IHT) is due and forms the basis of the estate's tax return. Getting the valuation right is essential — mistakes can lead to HMRC penalties or overpaid tax.

This guide explains how to value a property for probate, who should do it, and what to do with the valuation once you have it.

What Is a Probate Property Valuation?

A probate valuation is an assessment of a property's open market value at the date of death. It is not the same as an estate agent's marketing price or a mortgage surveyor's valuation. The key requirements are:

• Date of death value — The valuation must reflect what the property would have sold for on the open market on the date the person died, not the current date.
• Open market value — It assumes a willing buyer and willing seller, with no pressure to sell.
• Property condition — The valuation must account for the property's condition at the date of death, including any disrepair or structural issues.

Who Can Value a Property for Probate?

RICS Surveyor (Recommended)

A Royal Institution of Chartered Surveyors (RICS) qualified surveyor provides a formal Red Book valuation. This is the type HMRC accepts most readily, especially for higher-value estates. A RICS valuation:

• Follows strict professional standards
• Is backed by professional indemnity insurance
• Carries significant weight if HMRC challenges the valuation
• Costs £300-£800 depending on property value and location

Estate Agent Valuation

Estate agents provide free market appraisals, but these are marketing estimates, not formal valuations. HMRC may accept an estate agent valuation for lower-value estates, but they are more likely to challenge it. If you use an estate agent:

• Get at least three valuations from different agents
• Choose agents familiar with the local area
• Ask for written valuations with comparable evidence

Specialist Probate Valuer

Some firms specialise in probate valuations and provide a service that combines the RICS valuation with the IHT paperwork. This can be useful for complex estates.

When You Need a RICS Valuation

A RICS Red Book valuation is strongly recommended when:

• The estate's value exceeds the nil-rate band (£325,000) plus the residence nil-rate band (£175,000)
• The property is unusual, unique, or in poor condition
• The estate is complex (multiple properties, business assets, foreign assets)
• You expect HMRC to scrutinise the valuation

For estates below the IHT threshold, an estate agent valuation may be sufficient — but check with your solicitor first.

How the Valuation Affects Inheritance Tax

The probate valuation is entered on form IHT400 (the inheritance tax return). Here is how it works:

If the property is passed to a direct descendant (child or grandchild), the residence nil-rate band adds up to £175,000 to the tax-free allowance.

Common Mistakes to Avoid

1. Using the Council Tax Band

Council tax bands are based on 1991 values and bear no relation to current market value. Never use them for probate.

2. Valuing Based on Online Estimates

Automated valuation tools (like those on Rightmove or Zoopla) are not accepted by HMRC for probate purposes. They can be a useful starting point, but you need a professional valuation.

3. Ignoring Property Condition

A property in poor repair is worth less than one in good condition. If the property needs significant work, make sure the valuer accounts for this. A guaranteed sale buyer will assess condition as part of their offer.

4. Forgetting Deductions

You can deduct certain costs from the estate value, including:

• Outstanding mortgage
• Secured loans
• Estate agent and legal fees for selling the property
• Funeral expenses (deducted from the estate, not the property value)

What to Do After the Valuation

Submit the IHT Return

Your solicitor will include the valuation on form IHT400. If IHT is due, it must be paid before the grant of probate is issued — even if the property has not been sold yet. This can create a cash flow problem, which is where a fast property sale helps.

Apply for the Grant of Probate

Once IHT is paid (or confirmed as not due), you apply for the grant of probate. This typically takes 4-8 weeks.

Sell the Property

You can market the property before probate is granted, but you cannot complete the sale until probate is issued. Once you have the grant, you can sell through:

• Estate agent — 4-6 months, no guarantee of completion
• Auction — 8-12 weeks, competitive but uncertain price
• Assisted sale — 6-12 weeks, managed process with pre-approved buyers
• Guaranteed sale — 7-28 days, certainty of completion, no fees

If the Sale Price Differs from the Probate Value

If you sell the property within 12 months of the date of death and the sale price is different from the probate value:

• Sale price is lower — You can claim a refund of overpaid IHT using form IHT35. HMRC will adjust the valuation down to the sale price.
• Sale price is higher — HMRC may argue the probate valuation was too low and seek additional tax.

This is why getting the valuation right from the start is so important.

How We Can Help

If you are dealing with an inherited property, our secure sale service can help at every stage:

• Free RICS-standard valuation — We assess the property at no cost.
• No fees — We cover all conveyancing, searches, and legal costs.
• Fast completion — 7-28 days once probate is granted.
• Any condition — We buy properties in any state, including those needing significant work.

For a comprehensive guide to the entire probate sale process, see our executor's checklist.