A probate valuation will be accepted by HMRC when it accurately reflects the open market value of all estate assets at the date of death, is prepared by a qualified and accountable professional, and complies with the relevant legislative framework — principally Section 160 of the Inheritance Tax Act 1984. HMRC scrutinises both the methodology behind a valuation and the credentials of the person who produced it, so informal or unqualified assessments carry a real risk of challenge. The questions below address the specific factors HMRC examines and how to ensure your valuation report meets the required standard.
What does HMRC actually check in a probate valuation?
HMRC checks whether the valuation correctly reflects the open market value of each asset as at the date of death — meaning the price a willing buyer and seller would agree upon in an arm’s length transaction. It also checks that the methodology is sound, that the valuer is appropriately qualified, and that the report is sufficiently detailed to support the figures declared on the Inheritance Tax return.
In practice, HMRC’s review focuses on several key areas:
- Compliance with Section 160 of the Inheritance Tax Act 1984, which defines the open market value standard that all probate valuations must meet
- The qualifications of the valuer — HMRC expects valuations to be carried out by professionals with demonstrable expertise in the relevant asset class
- The completeness of the report — every category of asset must be addressed, including property, household contents, vehicles, jewellery, art, antiques, and any other chattels
- Individual item disclosure — items with a value exceeding £1,500 must be listed separately in accordance with Inheritance Tax guidelines
- Supporting documentation — reports should be presented on headed notepaper, signed by the valuer, and include clear reasoning for the values assigned
HMRC also has the right to refer a property valuation to the District Valuer, an independent government surveyor, if the declared figure appears inconsistent with comparable market evidence. For contents and chattels, specialist review may be triggered where high-value items are present.
Does a probate valuation need to be RICS-accredited?
For property valuations, HMRC strongly expects a RICS Red Book valuation — produced by a surveyor registered with the Royal Institution of Chartered Surveyors and conducted in accordance with the RICS Valuation Global Standards. While there is no absolute statutory requirement that all probate valuations be RICS-accredited, a non-RICS property valuation is far more likely to be questioned or rejected. For contents, art, antiques, and chattels, HMRC expects a valuer who is a registered and accredited specialist in the relevant field.
The practical reality is that HMRC treats unqualified or self-prepared valuations with significant scepticism. An executor who submits a figure based on their own estimate, an online price comparison, or an unaccredited opinion risks triggering a formal enquiry, incurring penalties, or being required to commission a professional valuation retrospectively — which adds both cost and delay to the probate process.
Accreditation matters because it provides accountability. A RICS-registered valuer carries professional indemnity insurance, adheres to a recognised ethical and technical standard, and can be held professionally responsible for the accuracy of their report. These are precisely the assurances HMRC looks for when assessing whether a declared value is reliable.
What are the most common reasons HMRC rejects a probate valuation?
HMRC most commonly rejects or disputes a probate valuation because the declared value is demonstrably lower than comparable market evidence, because the valuer lacks the appropriate qualifications, or because the report is insufficiently detailed to support the figures it contains. Each of these issues can trigger a formal enquiry and delay the grant of probate.
The most frequent grounds for rejection include:
- Undervaluation — whether deliberate or accidental, values that fall materially below open market levels attract scrutiny, particularly for property in areas where sale prices are well-documented
- Unqualified valuers — estimates prepared by family members, estate agents acting informally, or generalist professionals without specialist probate experience are routinely questioned
- Incomplete asset coverage — failing to include all household contents, overlooking high-value items such as jewellery or artwork, or omitting vehicles and other chattels
- Missing item-level detail — reports that provide only a lump-sum figure for contents, without itemising assets above the £1,500 threshold, do not meet HMRC’s disclosure requirements
- No reference to the date of death — valuations must reflect the value at the specific date the deceased passed away, not a later or approximate date
- Absence of professional indemnity cover — HMRC expects valuers to carry appropriate insurance, which signals professional accountability
Avoiding these pitfalls requires engaging a specialist from the outset rather than attempting to remedy a deficient report after HMRC has raised concerns.
How do you tell if a probate valuation report is HMRC-compliant?
An HMRC-compliant probate valuation report will be presented on headed notepaper, signed by an accredited valuer, reference Section 160 of the Inheritance Tax Act 1984, and provide an itemised breakdown of all assets at their open market value as at the date of death. A report that lacks any of these elements is unlikely to satisfy HMRC without further clarification or amendment.
When reviewing a report, check for the following:
- The valuer’s name, qualifications, and professional membership are clearly stated
- The date of death is explicitly referenced as the valuation date
- All categories of asset are covered — property, contents, vehicles, jewellery, art, and any other items of value
- Individual items valued at £1,500 or more are listed separately with their own attributed values
- Bequests specified in the will are identified and valued individually
- The report states that values represent open market value in accordance with Section 160 of the Inheritance Tax Act 1984
- The valuer’s professional indemnity insurance is in place and the firm is accountable for the figures provided
A report that meets all of these criteria provides a strong foundation for submission to HMRC and significantly reduces the risk of a subsequent enquiry.
Should you get separate valuations for property and contents?
Yes. Property and household contents require separate valuations because they involve different asset classes, different valuation methodologies, and different categories of professional expertise. A RICS surveyor conducting a Red Book property valuation is assessing bricks and mortar against comparable sales evidence. A contents valuer is assessing furniture, personal effects, jewellery, art, and antiques against specialist market knowledge — these are distinct disciplines that rarely overlap.
HMRC treats them as separate categories on the Inheritance Tax return, and each must be supported by its own compliant report. Attempting to combine them into a single document prepared by a professional qualified in only one area creates gaps in coverage and increases the likelihood of challenge.
For estates of any complexity — particularly those containing antiques, fine art, jewellery, or high-value collections — it is also worth engaging a valuer who holds specific accreditation in those specialist areas. A generalist contents valuation may miss significant value or misattribute it, both of which carry tax implications. Engaging a firm that provides both probate contents valuation and RICS Red Book property valuation under one roof simplifies the process and ensures consistency across the full estate report.
What happens if HMRC disputes your probate valuation?
If HMRC disputes a probate valuation, it will open a formal enquiry and may refer the matter to the District Valuer for property, or to a specialist adviser for contents and chattels. The executor will be required to provide supporting evidence for the declared values, and if HMRC’s revised figure is higher, additional Inheritance Tax will be due, along with interest on any underpayment. In cases of serious undervaluation, penalties may also apply.
The process typically involves correspondence between HMRC and the executor or their solicitor, with the original valuer expected to defend their figures. If the valuation was produced by an unqualified individual or lacks the necessary documentation, there may be little basis on which to mount a credible defence — leaving the executor exposed to HMRC’s own assessment of value.
Where a valuation has been prepared by an accredited professional with full indemnity cover, the position is considerably stronger. The valuer can respond directly to HMRC’s queries, provide supporting market evidence, and engage with the District Valuer on equal professional terms. This is one of the most practical reasons why professional accreditation matters — not just for initial acceptance, but for protection if a challenge arises later.
Executors should also be aware that disputes can delay the grant of probate and hold up the administration of the estate, causing additional stress and cost for all parties involved.
How Avery Associates ensures your probate valuation is accepted by HMRC
Avery Associates provides RICS-accredited probate valuations with a 100% HMRC acceptance rate — built on two decades of specialist experience, rigorous compliance with Section 160 of the Inheritance Tax Act 1984, and a detailed, professionally presented report for every estate. Every valuation is carried out by registered and accredited valuers, covered by full professional indemnity insurance, and returned within five working days as standard, with urgent reports available within 24 hours.
The service covers every aspect of estate valuation in a single, coordinated engagement:
- RICS Red Book property valuations prepared to District Valuer standard
- Comprehensive contents valuation covering furniture, household effects, jewellery, art, antiques, and all chattels
- Individual itemisation of all assets valued at £1,500 or above, in line with HMRC guidelines
- Separate valuation of bequests in accordance with the will
- Reports presented on headed notepaper, signed, and ready for immediate submission
- Support for executors on Capital Gains Tax, Conditional Exemption, and the Acceptance in Lieu scheme where relevant
- Full probate house clearance and estate administration services available alongside valuation
If you are an executor, administrator, or family member managing a deceased estate and need a valuation you can submit to HMRC with confidence, contact Avery Associates for a free initial consultation. The team is available nationwide and will guide you through every step of the process with the professionalism and discretion the situation requires.
