How are private company shares valued for probate?

A probate valuation establishes the value of the deceased’s interest for estate administration and the relevant tax reporting. For inheritance tax, section 160 of the Inheritance Tax Act 1984 sets the general open-market measure: the price the property might reasonably be expected to fetch if sold in the open market at that time. The exercise assumes a hypothetical sale; it does not require the executors to sell the shares.

The relevant date is normally the date of death, not the date the accounts are signed, the estate return is submitted or the valuation report is written. The valuer must reconstruct the business’s financial position and prospects at that date. Annual accounts can provide a starting point, but a substantial gap between their reporting date and the death usually requires additional financial evidence and an explanation of intervening changes.

Terminology and estate procedures differ across the UK. Scotland uses confirmation rather than the grant of probate terminology familiar in England and Wales, and Northern Ireland has its own administration procedures. Those procedural differences should be addressed by the estate’s solicitor. They do not turn a date-of-death share valuation into a present-day estimate. The Republic of Ireland is a separate jurisdiction and requires separate consideration of its own tax and succession rules.

The instruction should identify the deceased, valuation date, company, share class, quantity held and intended use of the report. It should also distinguish shares from any separate director’s loan account or other claim against the company. An estate may hold both an ownership interest and a creditor balance: treating them as one asset can obscure their different risks and produce double counting.

Reference framework:[3] Inheritance Tax Act 1984, section 160[2] HMRC[1] IVSC

The asset being valued is normally the deceased’s particular shareholding, not an abstract percentage of a whole-company sale price. Analysing the underlying business is necessary, but the resulting equity value must be connected to the rights and economic position of the shares owned. Different classes can have different entitlements to dividends, voting, capital proceeds and redemption, even where their nominal values look identical.

Articles of association, shareholder agreements and any relevant amendments should therefore be reviewed alongside the register of members. A holding that can influence distributions or strategic decisions may have a different economic position from one that cannot. Transfer restrictions, pre-emption provisions and death-related purchase arrangements also require examination. Their legal effect and their significance within the statutory valuation framework should be established rather than assumed.

Inheritance tax can also involve related-property rules, including circumstances involving property belonging to a spouse or civil partner. These rules may affect the valuation calculation, so a valuer cannot always analyse the deceased’s holding in isolation. This is not a licence simply to combine every family member’s shares. The estate’s tax adviser should identify whether the rules apply, and the valuation should explain how that instruction affects the result.

A minority discount is consequently not an automatic percentage deduction, and a controlling interest is not automatically worth the price a particular strategic buyer might pay. Both shortcuts bypass the actual valuation question. The report should explain how ownership rights, available information and realistic marketability affect the hypothetical purchaser’s assessment, with any adjustments supported by reasoning rather than a standard schedule applied to every private company.

Reference framework:[2] HMRC[3] Inheritance Tax Act 1984, section 160[4] ICAEW

There is no single probate formula for private company shares. A profitable trading company may be assessed primarily by reference to sustainable earnings and an appropriate market multiple. A property or investment-holding company may require greater emphasis on underlying assets and liabilities. Discounted cash flow can be useful where forecasts are sufficiently reliable, although an elaborate model cannot compensate for unsupported assumptions about future growth, margins or funding.

For an earnings-based assessment, the valuer examines whether reported results represent maintainable performance at the date of death. Relevant issues can include exceptional expenditure, non-commercial remuneration, transactions with connected parties and the cost of replacing the deceased’s work. The adjustment must reflect a realistic operating business: adding back an owner’s salary in full while ignoring the need for a replacement manager can materially overstate earnings.

Hypothetical illustration: suppose an earnings-based method produces an operating business value of £2 million, with £300,000 of debt and £100,000 of genuinely surplus cash. Before other adjustments, the implied whole-company equity value would be £1.8 million. A hypothetical 20% holding would not necessarily be worth £360,000, because its rights, marketability and the applicable inheritance tax valuation rules still need consideration. These figures illustrate the sequence, not a recommended multiple, discount or outcome.

An asset-based cross-check can reveal surplus property, investments or liabilities that an earnings calculation misses. Conversely, the latest balance sheet may omit commercially valuable goodwill or carry property at a figure unrelated to its valuation-date market value. The report should reconcile the methods used and explain why one receives greater weight. Agreement between two weak calculations is not stronger evidence than one properly supported analysis.

Reference framework:[1] IVSC[2] HMRC[4] ICAEW

Where the deceased was central to the business, their death may change the commercial position a hypothetical purchaser would assess. The important question is what the business could reasonably sustain in the circumstances at the valuation date. Personal customer relationships, technical qualifications, sales activity and operational knowledge all matter, but their significance depends on whether they can be transferred or replaced by the remaining team.

A business with documented processes, an established management team and transferable customer contracts may be less exposed than one dependent on a single individual. The valuer should examine the evidence, not apply a generic key-person discount. If performance can be maintained by recruiting a replacement, the recurring employment cost and transition risk may be more informative than a broad reduction in the value of the entire business.

Insurance and death-triggered contractual arrangements can complicate the picture. Key-person cover, cross-option arrangements and shareholder protection policies may affect different parties or assets. It is necessary to identify who owns each policy, who receives the proceeds and how the arrangements interact with the shares. Insurance should not simply be added to company value without checking entitlement, the valuation-date position and the possibility of counting the same benefit twice.

Later events need careful treatment. A customer cancellation after death may provide evidence about an existing vulnerability, or it may represent a genuinely new development. Equally, a strong recovery under new management does not automatically justify importing that success into the earlier valuation. A retrospective report should distinguish information that illuminates circumstances at the date of death from hindsight about events that could not reasonably have been anticipated.

Reference framework:[1] IVSC[2] HMRC[3] Inheritance Tax Act 1984, section 160

No. Market value and entitlement to business relief answer different questions. The valuation establishes the value of the relevant property; the tax analysis determines whether relief is available and how it affects the inheritance tax calculation. Assuming that a company qualifies for relief is not a sound reason to substitute nominal share capital, book value or an unsupported estimate for a properly considered market value.

Eligibility can depend on the nature of the business, the ownership history, the assets involved and other statutory conditions. A company described informally as a family trading business may still require detailed examination. Substantial investment activities or assets that do not serve the qualifying business can raise separate questions. The valuation specialist and tax adviser should agree which matters require factual investigation and which require a legal or tax conclusion.

Business relief rules, limits and transitional provisions must be checked against the date of death and the law then applicable. Executors should not rely on remembered rules or assume that an earlier family estate provides a valid precedent. Where treatment remains uncertain, it can be helpful to distinguish the concluded market valuation from alternative tax computations prepared by the estate’s adviser, rather than allowing the relief assumption to dictate value.

A reliable valuation also supports transparent estate administration. Beneficiaries may receive different assets, shares may be appropriated or sold, and the estate may need to explain how its reported figures were reached. Those later decisions can require their own advice and, sometimes, a different valuation date. Nevertheless, a documented date-of-death valuation provides an important record of the starting position and helps prevent inconsistent explanations across the estate file.

Reference framework:[2] HMRC[3] Inheritance Tax Act 1984, section 160

Submitting a professional valuation does not guarantee that HMRC will agree with it. HMRC’s Shares and Assets Valuation function may examine unquoted share values relevant to tax liabilities, and questions can focus on both factual inputs and valuation judgement. A report is more useful when it allows another specialist to follow the reasoning, test the assumptions and understand why competing indicators of value were accepted or rejected.

A strong evidence trail includes the financial information used, explanations of adjustments, the basis for market comparisons and the treatment of ownership rights. Material uncertainty should be identified rather than hidden behind an apparently exact figure. The valuer should also record information limitations: for example, whether valuation-date management accounts were unavailable or whether a significant liability depended on advice from another professional. Clear limitations make the conclusion more intelligible, not less professional.

A later arm’s-length share sale can be relevant evidence, particularly if it occurs close to the valuation date and commercial circumstances have not materially changed. But the headline consideration is not automatically the probate value. Differences may arise from the stake sold, purchaser-specific benefits, deferred payments, performance conditions, debt, cash or negotiated warranties. An offer for the whole company may say relatively little about a smaller holding without further analysis.

Executors should preserve contemporaneous offers, negotiations and sale documents, even if a transaction does not complete. Equally, a later deterioration in the business does not automatically permit the date-of-death figure to be replaced by the lower proceeds. The valuation question and any possible statutory tax adjustment are separate matters. The estate’s tax adviser should determine the available treatment rather than assume a general loss-relief rule applies to unquoted shares.

Reference framework:[2] HMRC[3] Inheritance Tax Act 1984, section 160[1] IVSC

Start by establishing exactly what the estate owns. Obtain the share register, share certificates where available, articles and shareholder agreements, together with details of options, preference rights and any agreements triggered by death. Confirm whether the deceased held shares personally, through another vehicle or in a trustee capacity. If ownership is disputed or documentation conflicts, the solicitor should clarify the legal position before valuation assumptions are finalised.

The financial pack should bridge the last completed accounts to the date of death. Management accounts, bank and borrowing balances, forecasts prepared around the relevant date and explanations of unusual trading movements are particularly useful. The aim is not to create an artificially polished forecast after the event. It is to preserve evidence of the business’s financial condition and the expectations reasonably supportable at the valuation date.

Provide commercial context as well as numbers. Explain the deceased’s role, the management succession plan, major customer or supplier dependencies, outstanding litigation and any intended transaction. Identify property, investments and other potentially non-operating assets. Existing valuations can help, but their purpose, date and assumptions must be checked: a fundraising presentation, insurance estimate or contractual transfer calculation may answer a different question from a probate valuation.

A short covering chronology often saves time by linking important events to the valuation date. It should identify when material contracts were won or lost, when negotiations started and when significant information became available. Executors do not need to resolve every technical issue before making an enquiry. An orderly initial pack allows the valuer to identify missing evidence early and direct targeted questions to the accountant, solicitor or management team.

• Ownership: register of members, share classes, articles, agreements and relevant estate instructions.
• Financial position: statutory accounts, valuation-date management information, borrowing and cash balances.
• Commercial evidence: forecasts, key contracts, management responsibilities and material business risks.
• Other interests: director’s loans, insurance arrangements, offers and death-triggered purchase provisions.

Reference framework:[1] IVSC[2] HMRC[4] ICAEW

An independent valuation helps executors separate the estate’s evidence from understandable personal expectations about what the business ought to be worth. XVAL’s work is human and expert-led, not an automated calculator. The analysis starts with the valuation purpose, date and ownership interest, then considers the business’s financial performance, relevant market evidence and the legal rights affecting the shares. That structure makes the conclusion easier for advisers and beneficiaries to understand.

The documented report should connect the factual record to the valuation judgement: what was reviewed, which methods were appropriate, what adjustments were made and which assumptions remain dependent on legal or tax advice. Where the deceased’s role, a shareholder agreement or related-property treatment is significant, it should be addressed expressly. A concise number without that explanation can leave executors exposed to avoidable questions later in the administration.

XVAL works alongside the estate’s solicitor, accountant and tax adviser rather than replacing their responsibilities. Legal advisers establish ownership and interpret relevant agreements; tax advisers assess reliefs and reporting obligations; the valuation specialist determines and explains value on the agreed basis. Coordinating these contributions early reduces the risk of different professionals working from inconsistent share counts, dates, company information or assumptions about the estate’s tax treatment.

XVAL reviews enquiries on the same working day to identify scope, urgency and the information required. Fast progress comes from focused expert review and targeted evidence gathering, not from bypassing technical checks; the reporting timetable depends on the complexity and completeness of the material supplied. The objective is a proportionate, independently reasoned valuation that executors can use confidently and that provides a clear basis for responding to subsequent questions.

Reference framework:[1] IVSC[4] ICAEW

Questions owners ask

Frequently asked questions

Reference desk

Sources & further reading

Legislation states the legal provisions; HMRC manuals describe HMRC’s guidance. Professional standards and research guides inform valuation practice. Illustrations and commercial checklists above are explanatory analysis, not prescribed legal formulas or market benchmarks.

1. [1]IVSC — International Valuation Standards
2. [2]HMRC — Shares and Assets Valuation Manual
3. [3]Inheritance Tax Act 1984, section 160 — Market value
4. [4]ICAEW — Business and share valuation

This article provides general technical information, not legal, tax or investment advice. Its application depends on the facts, the valuation purpose and rules in force at the relevant date. A reference to a professional body does not imply XVAL accreditation or endorsement. All numerical examples are hypothetical, not XVAL fees, client results or market evidence.