Do you need a RICS valuation for probate, and why is it different from market value?

Probate property valuation across the UK is about the date-of-death open-market value, not a special discounted probate price. In England and Wales, Scotland and Northern Ireland, the practical question is usually not whether RICS is compulsory, but whether the valuation will stand up if HMRC asks how it was reached.

Do you need a formal valuation for probate?

You do not legally need a RICS valuation for probate: no UK law names RICS, and HMRC says property or land can be valued by an estate agent or a chartered surveyor. The Inheritance Tax rule is that the value is the open-market price at the relevant time: “the value at any time of any property shall for the purposes of this Act be the price which the property might reasonably be expected to fetch if sold in the open market at that time”. HMRC’s own guidance says: “You can get any property or land valued by an estate agent or chartered surveyor.” That means an estate agent can do a probate valuation, and there is no automatic need for an official house valuation for probate in the sense of a Red Book report. The caution is practical rather than legal: HMRC also says, “Valuing land and buildings can be a complicated area and you’re strongly advised to use a professional valuer.”

How much does a probate valuation cost?

A probate valuation for a UK home commonly costs from about £250 to £899 for a standard residential report, but no statute sets a probate valuation fee. Survey Merchant advertises that “Standard residential probate valuations cost from £250, fixed and quoted before instruction,” while Stephen Michael Surveying gives a wider local fee range: “Pricing is dependent on the age, size, condition and complexity of the property but costs typically range between £289 and £899 (no VAT to pay).” A RICS probate valuation cost is therefore a market fee, not a court or HMRC tariff, and it will usually rise where the property is unusual, high value, mixed-use, tenanted, derelict, jointly owned, or hard to compare with recent sales. The fee is also not an Inheritance Tax deduction: HMRC’s IHT400 notes say “any valuation fees incurred in dealing with the deceased’s estate cannot be deducted.”

How long does a valuation report take?

A residential probate valuation report is often delivered within about 3 to 5 working days after inspection, but UK law does not set a report-production deadline. The probate tax timetable is separate: HMRC says “You must pay Inheritance Tax by the end of the sixth month after the person died to avoid paying interest,” and IHTA 1984 s.216 times the IHT account by reference to “the period of twelve months from the end of the month in which the death occurs” for personal representatives, subject to the statutory wording. In the market, Stephen Michael Surveying says “Valuation reports are typically delivered within 3 working days of the inspection,” and Survey Merchant advertises a signed RICS Red Book report “within 3–5 working days of inspection.” The useful planning point is that inspection availability, access, title complications and comparable evidence usually matter more than the writing time itself.

What is the difference between probate value and market value?

The probate value is the date-of-death open-market value used for Inheritance Tax; ordinary market value usually means today’s sale estimate or agreed sale price. IHTA 1984 s.160 says the value is “the price which the property might reasonably be expected to fetch if sold in the open market at that time,” and HMRC’s IHT400 notes make the date explicit: “The law says that for Inheritance Tax, you have to value all assets as if each item had been sold on the date the deceased died.” A probate valuation is therefore not supposed to be lower than market value just because it is for probate; if a probate valuation is lower than a later estate-agent figure, the usual explanations are date, evidence, condition, sale strategy, development potential or a more conservative assumption. HMRC’s manual even warns that a label is not enough: “Where a valuation is described as being made ‘for probate purposes’ or for ‘IHT purposes’ you may want to confirm with the taxpayer or agent that the open market value has been used.”

What happens if the sale price is higher than the probate value?

If the sale price is higher than the probate value, the later price does not automatically replace the Inheritance Tax value, but it may create a CGT issue or show that the original death valuation was too low. For Inheritance Tax, the statutory target remains the death value under IHTA 1984 s.160, not whatever the property later sells for. HMRC’s IHT400 notes mainly give relief the other way round: “If shares listed on the stock exchange are sold within 1 year of the date of death, or land and buildings are sold within 4 years of the date of death, for less than the value included on form IHT400, we may be able to reduce the Inheritance Tax.” For Capital Gains Tax, where an IHT value has been ascertained, TCGA 1992 s.274 says “the value so ascertained shall be taken for the purposes of this Act to be the market value of that asset at the date of the death.” A higher sale is then usually measured against that base cost.

Do you have to tell HMRC if the probate valuation turns out to be too low?

You must tell HMRC within six months of discovering the problem if a formal IHT account has been delivered and the probate valuation is materially too low. IHTA 1984 s.217 says that if someone who has delivered an account “discovers at any time that the account is defective in a material respect” they must, “within six months of that time, deliver to the Board a further account containing such information as may be necessary to remedy the defect.” That six-month rule is the sharper deadline, even though GOV.UK also says: “You need to tell HMRC about any changes once the values are final or 18 months after the person died, whichever is sooner.” If you used a mortgage company’s drive-by valuation for probate and later obtained a much higher estate-agent valuation, the question is whether the date-of-death figure was materially wrong, not whether Inheritance Tax is due. Before applying for a grant, HMRC says new information casting doubt on the initial valuation means “you must reconsider it.”

Why do two valuations of the same house come out so differently?

Two valuations of the same house can differ because land valuation is imprecise, and competent valuers may use different evidence, assumptions, dates, purposes and methods. The Court of Appeal put the point plainly in Bratt v Jones: “There was no dispute between the parties that the valuation of land is not a precise science, and that careful and competent valuers might reach different results without having breached their duties.” RICS practice commentary explains the mechanics: “The purpose determines the basis of value, and the basis of value determines the methodology.” A probate valuation asks for the date-of-death open-market value; a lender’s valuation protects the bank; an estate agent’s appraisal may be aimed at pricing a launch or winning an instruction. If you are trying to know whether a house is valued correctly, compare the valuation date, condition assumptions, tenure, occupation, comparable sales, floor area, title issues and whether the figure is a sale appraisal or a formal valuation.

What margin of error is acceptable in a RICS valuation?

There is no legally fixed RICS valuation tolerance, and in England and Wales the Court of Appeal says the acceptable bracket is a question of fact on the evidence, not a fixed percentage rule. In Bratt v Jones, the court held that Singer & Friedlander “does not support the proposition that the determination of the relevant bracket is a question of law: on the contrary, it supports the proposition that it is a question of fact to be determined by the court on the basis of the evidence before it.” The 5% and 10% figures often quoted online are not RICS rules or statutory tolerances; Bratt recites expert evidence that “For a standard residential property, the margin of error may be as low as plus or minus 5 per cent,” and also quotes older evidence that the margin was “generally 10 per cent either side.” RICS’s own Red Book position is broader: “All valuations are estimates and therefore always subject to a degree of uncertainty.”

What should you know before making an offer on a probate property?

Before making an offer on a probate property, check whether the seller has authority to sell, because England, Wales and Northern Ireland usually need a grant and Scotland needs confirmation. HM Land Registry says for England and Wales: “If the property is to be sold, probate gives the personal representative the authority to sell it in accordance with the terms of the will.” In Northern Ireland, nidirect says: “Following a death, you may need to get authority from the High Court to deal with the deceased’s estate - assets, house, and money.” In Scotland, confirmation is “a legal document from the court giving the executor(s) authority to uplift any money or other property belonging to a deceased person”. Offers also work differently: in England and Wales “An offer is not legally binding… until you exchange contracts,” while in Scotland “Once the missives are accepted… you have a binding contract.” For joint-owner IHT discounts, HMRC practice is 15% off half value in England, Wales and Northern Ireland where a co-owner remains in occupation, while Scotland uses a flat £4,000 deduction from the whole asset before calculating the share.

Last reviewed August 2026.

Sources

• Inheritance Tax Act 1984 s.160 — “Except as otherwise provided by this Act, the value at any time of any property shall for the purposes of this Act be the price which the property might reasonably be expected to fetch if sold in the open market at that time; but that price shall not be assumed to be reduced on the ground that the whole property is to be placed on the market at one and the same time.” Source
• HMRC IHT400 notes — “If you do decide to employ a valuer, make sure you ask them to give you the ‘open market value’ of the asset.” Source
• HMRC IHT400 notes — “Valuing land and buildings can be a complicated area and you’re strongly advised to use a professional valuer.” Source
• GOV.UK valuing an estate — “You can get any property or land valued by an estate agent or chartered surveyor.” Source
• HMRC IHT400 notes — “This means that probate fees, any solicitor’s or estate agent’s fees and any valuation fees incurred in dealing with the deceased’s estate cannot be deducted.” Source
• Survey Merchant probate valuation page — “Standard residential probate valuations cost from £250, fixed and quoted before instruction.” Source
• Stephen Michael Surveying valuation page — “Pricing is dependent on the age, size, condition and complexity of the property but costs typically range between £289 and £899 (no VAT to pay).” Source
• Inheritance Tax Act 1984 s.216 — “(a)in the case of an account to be delivered by personal representatives, before the expiration of the period of twelve months from the end of the month in which the death occurs, or, if it expires later, the period of three months beginning with the date on which the personal representatives first act as such;” Source
• GOV.UK valuing an estate — “You must pay Inheritance Tax by the end of the sixth month after the person died to avoid paying interest.” Source
• Stephen Michael Surveying valuation page — “Valuation reports are typically delivered within 3 working days of the inspection.” Source
• Survey Merchant probate valuation page — “Standard residential probate valuations cost from £250, fixed and quoted before instruction, with the signed RICS Red Book report delivered within 3–5 working days of inspection.” Source
• HMRC IHT400 notes — “The law says that for Inheritance Tax, you have to value all assets as if each item had been sold on the date the deceased died.” Source
• HMRC Inheritance Tax Manual IHTM21041 — “Where a valuation is described as being made ‘for probate purposes’ or for ‘IHT purposes’ you may want to confirm with the taxpayer or agent that the open market value has been used.” Source
• HMRC IHT400 notes — “If shares listed on the stock exchange are sold within 1 year of the date of death, or land and buildings are sold within 4 years of the date of death, for less than the value included on form IHT400, we may be able to reduce the Inheritance Tax.” Source
• Taxation of Chargeable Gains Act 1992 s.274 — “Where on the death of any person inheritance tax is chargeable on the value of his estate immediately before his death and the value of an asset forming part of that estate has been ascertained (whether in any proceedings or otherwise) for the purposes of the application of that tax to the estate, the value so ascertained shall be taken for the purposes of this Act to be the market value of that asset at the date of the death.” Source
• Inheritance Tax Act 1984 s.217 — “If a person who has delivered an account under section 216 above discovers at any time that the account is defective in a material respect by reason of anything contained in or omitted from it he shall, within six months of that time, deliver to the Board a further account containing such information as may be necessary to remedy the defect.” Source
• GOV.UK valuing an estate — “You need to tell HMRC about any changes once the values are final or 18 months after the person died, whichever is sooner.” Source
• HMRC IHT400 notes — “If, after you have got a valuation and before you apply for a grant, you find out about other information that casts doubts on the initial valuation, you must reconsider it.” Source
• Bratt v Jones [2025] EWCA Civ 562 — “There was no dispute between the parties that the valuation of land is not a precise science, and that careful and competent valuers might reach different results without having breached their duties.” Source
• RICS Property Journal — “The purpose determines the basis of value, and the basis of value determines the methodology.” Source
• Bratt v Jones [2025] EWCA Civ 562 — “The judgment in Singer & Friedlander, therefore, does not support the proposition that the determination of the relevant bracket is a question of law: on the contrary, it supports the proposition that it is a question of fact to be determined by the court on the basis of the evidence before it.” Source
• Bratt v Jones [2025] EWCA Civ 562 — “For a standard residential property, the margin of error may be as low as plus or minus 5 per cent;” Source
• Bratt v Jones [2025] EWCA Civ 562 — “The permissible margin of error is said by Mr Dean, and agreed by Mr Ross, to be generally 10 per cent either side of a figure which can be said to be the right figure, i.e. so I am informed, not a figure which later, with hindsight, proves to be right but which at the time of valuation is the figure which a competent, careful and experienced valuer arrives at after making all the necessary inquiries and paying proper regard to the then state of the market.” Source
• RICS Red Book Global Standards — “All valuations are estimates and therefore always subject to a degree of uncertainty.” Source
• HM Land Registry blog — “If the property is to be sold, probate gives the personal representative the authority to sell it in accordance with the terms of the will.” Source
• nidirect probate guidance — “Following a death, you may need to get authority from the High Court to deal with the deceased’s estate - assets, house, and money.” Source
• Scottish Courts guide to confirmation — “‘Confirmation’ is a legal document from the court giving the executor(s) authority to uplift any money or other property belonging to a deceased person from the holder (such as the bank), and to administer and distribute it according to law.” Source
• GOV.UK buying a home — “An offer is not legally binding in England and Wales until you exchange contracts.” Source
• mygov.scot buying a home — “Once the missives are accepted and both you and the seller agree on the terms, you have a binding contract.” Source
• HMRC Shares and Assets Valuation manual — “Where at the valuation date any co-owner remains in occupation of the property, as their main residence, (other than the co-owner whose share is being valued) the normal approach is to take half the freehold vacant possession value and deduct 15%.” Source
• GOV.UK estate value estimator — “In Scotland, if land or property was owned jointly with others (excluding a spouse or civil partner), take £4,000 off the value of the whole asset before working out the person’s share.” Source