How do I calculate the value of my shares?

Start with a supportable equity value for the whole company and apply your percentage. That gives the pro-rata figure. A valuation of your specific holding then considers control, marketability, share rights and the purpose of the valuation.

Is a 25% shareholding automatically worth 25% of the company?

No. A minority holding in a private company is usually harder to sell and carries limited influence, so it may be worth less than its pro-rata share. The correct treatment depends on the facts and the purpose.

What is a minority discount?

It is a reduction applied to reflect the limited control and limited marketability of a minority holding. The size depends on the rights attached to the shares, the articles, any shareholders' agreement and dividend history.

What is a control premium?

It is an uplift reflecting the ability to direct the company: appointing directors, setting strategy, controlling dividends and deciding on a sale. It is not applied automatically here.

Why do voting rights matter?

Because influence follows votes, not economic ownership. A holding with reduced or enhanced voting rights can carry very different practical power from its percentage of the equity.

Can different share classes have different values?

Yes. Dividend rights, voting rights, capital priority on a sale and redemption terms can all differ by class, and each affects value.

What happens when two shareholders each own 50%?

Neither can ordinarily pass a resolution against the other, which can create deadlock. The articles and any shareholders' agreement, including deadlock and buy-out provisions, then become critical.

When is a formal share valuation required?

Whenever a third party relies on the figure: HMRC filings, court proceedings, probate, trustee decisions, employee share schemes, EOT transactions or a contested buy-out.

Can this result be used for tax, divorce or court proceedings?

No. A calculator result is not suitable where HMRC, a court, trustees, an EOT, opposing parties or another third party will rely on the valuation. Those situations need a formal, evidenced valuation prepared for that purpose.

Business valuation calculators

Shareholding Value Calculator

See the pro-rata value of a shareholding and why the real value may differ

In short

A shareholding's pro-rata value is the whole-company equity value multiplied by your percentage. That arithmetic share is not the value of your specific holding: rights attached to the shares, the articles, any shareholders' agreement, marketability and the purpose of the valuation determine whether a minority discount or control premium applies.

A shareholding is not simply a percentage of the whole. This calculator shows the straight pro-rata value and then sets out why the value of your specific holding may be different.

Part of the business valuation calculators suite from BusinessValuation.co.uk. Your result is saved in this browser, so you can compare it with your other calculator results.

How to use this calculator

Enter the whole-company equity value and the percentage owned. The calculator shows the simple pro-rata value and highlights why the actual value of a specific shareholding may differ.

The company and your holding

Enter the equity value of the whole company. If you do not have one, use the Enterprise Value to Equity Value calculator first.

Equity value of the whole company

£2,000,000

Your ownership percentage

Share class

Rights attached to the shares

Rights, not just percentages, drive what a holding is worth to a buyer.

My voting percentage differs from my ownership percentageDividend rights are equal to other ordinary sharesThere are restrictions on transferring the sharesThere is a shareholders agreement in place

Why you need the figure

Purpose

Optional adjustment

This calculator does not apply any minority discount or control premium for you. If you want to model one, enter it yourself and state your reason. The pro-rata figure is always shown alongside it.

Apply my own adjustment to the pro-rata figure

How to read this result

The pro-rata figure applies your ownership percentage to the whole-company equity value you entered. It is a simple arithmetic share, not a valuation of your specific holding. No minority discount or control premium has been applied automatically, because the appropriate treatment depends on the rights attached to the shares, the articles, any shareholders' agreement, the marketability of the holding and the purpose of the valuation. Any adjustment shown is the percentage you entered with your own stated reason, and is not described here as professionally justified. The ownership observations are general comments on voting thresholds, not legal advice or a definitive statement of control.

Ownership observation

25 per cent or more of votes may provide the ability to block matters requiring a 75 per cent special resolution, but will not ordinarily control ordinary resolutions.

Factors a formal share valuation would consider

Minority position and the absence of control
Control, where the holding carries it
Marketability of a private company shareholding
Transfer restrictions in the articles or shareholders' agreement
Dividend history and policy
Rights attached to the specific share class
Maintainable earnings and the appropriate multiple
Net assets and any surplus assets
The transaction context and who is relying on the valuation

Report warning

This result is not suitable for formal, tax, court or contentious purposes, or where HMRC, a court, trustees, an EOT or another party will rely on it.

Suggested next steps

Read the articles and any shareholders' agreement for transfer, valuation and deadlock provisions.
Establish the rights attached to your specific share class, including dividends, votes and exit.
Where a third party will rely on the figure, obtain a formal, evidenced share valuation.
Where a buy-out is proposed, take advice on the mechanism and the valuation basis before negotiating.

Your shareholding position

Pro-rata shareholding value

£600,000

Whole-company equity value: £2,000,000
Shareholding percentage: 30%
Pro-rata shareholding value: £600,000
Voting position: 25 per cent to below 50 per cent of votes
Dividend rights: Shares carry equal dividend rights
Transfer restrictions: Transfer restrictions apply
Shareholders' agreement: No shareholders' agreement reported
Purpose of the valuation: Internal planning
User-entered adjustment: None applied
Illustrative adjusted value: Not applied

Before you rely on this

No minority discount or control premium is applied automatically. Any adjustment shown is the percentage you entered, with your own stated reason.
The ownership observations are general comments on voting thresholds, not legal advice or a definitive statement of control.
A calculator result is not suitable where HMRC, a court, trustees, an EOT, opposing parties or another third party will rely on the valuation.

Next steps

Your result is above and stays visible. Request an independent shareholding valuation.

Important information

This calculator provides general, indicative guidance based solely on the information entered. It is not a formal business valuation, tax calculation, legal opinion or recommendation to accept or reject an offer. Actual value and sale proceeds depend on detailed financial, commercial and transaction-specific factors.

How this calculation works

Pro-rata value = company equity value × shareholding percentage
Adjusted indicative value = pro-rata value × (1 ± adjustment you enter)
Voting band = shareholding percentage mapped to its control position under the Companies Act and the articles

Worked example: 25% holding in a £6m company

Worked example: 25% holding in a £6m company
Company equity value	£6,000,000
Shareholding	25%
Pro-rata value	£1,500,000
Voting position	Can block a special resolution; cannot control
Illustrative minority adjustment entered	−25%
Adjusted indicative value	£1,125,000

The 25% adjustment shown is the figure you entered, not a rate this calculator recommends. Real adjustments are argued from the rights, the articles, dividend history, marketability and the purpose of the valuation.

What each input means

Company equity value: Whole-company value after debt and cash.
Shareholding percentage: Your holding, by share class where relevant.
Purpose of the valuation: Sale, buy-out, tax, probate, divorce or dispute. Purpose can change the basis of valuation entirely.
Voting rights: Used to show the control position your percentage gives under company law and the articles.
Discount or premium: An adjustment you choose to illustrate. No rate is applied automatically.

How to read the result

The pro-rata figure is arithmetic. The adjusted figure is your own illustration. For tax, probate, divorce or a disputed buy-out, the basis of valuation and the evidence for any discount must be set out in a formal report.

What can materially change the result

Rights attached to the class of shares: voting, dividend, pre-emption and exit rights.
Provisions in the articles and any shareholders' agreement.
Whether the holding confers control, a blocking position or neither.
Dividend history and the prospect of realisation.
The statutory or legal basis required by the valuation's purpose.

Limitations

It applies no automatic minority discount or control premium.
It does not value the company; the equity value is your input.
It is not an HMRC, court or probate valuation and calculates no tax.

When this calculator is appropriate

Use it for orientation before a shareholder buy-out discussion, an investment, or an instruction for a formal report.

When it is not appropriate

Do not use it for an HMRC submission, probate return, financial remedy proceedings or a contested buy-out. Those require a signed formal valuation.

Bottom line

Company value times percentage is a starting point, not an answer. Rights, restrictions and purpose decide what a shareholding is worth.

Questions owners ask

How do I calculate the value of my shares?: Start with a supportable equity value for the whole company and apply your percentage. That gives the pro-rata figure. A valuation of your specific holding then considers control, marketability, share rights and the purpose of the valuation.
Is a 25% shareholding automatically worth 25% of the company?: No. A minority holding in a private company is usually harder to sell and carries limited influence, so it may be worth less than its pro-rata share. The correct treatment depends on the facts and the purpose.
What is a minority discount?: It is a reduction applied to reflect the limited control and limited marketability of a minority holding. The size depends on the rights attached to the shares, the articles, any shareholders' agreement and dividend history.
What is a control premium?: It is an uplift reflecting the ability to direct the company: appointing directors, setting strategy, controlling dividends and deciding on a sale. It is not applied automatically here.
Why do voting rights matter?: Because influence follows votes, not economic ownership. A holding with reduced or enhanced voting rights can carry very different practical power from its percentage of the equity.
Can different share classes have different values?: Yes. Dividend rights, voting rights, capital priority on a sale and redemption terms can all differ by class, and each affects value.
What happens when two shareholders each own 50%?: Neither can ordinarily pass a resolution against the other, which can create deadlock. The articles and any shareholders' agreement, including deadlock and buy-out provisions, then become critical.
When is a formal share valuation required?: Whenever a third party relies on the figure: HMRC filings, court proceedings, probate, trustee decisions, employee share schemes, EOT transactions or a contested buy-out.
Can this result be used for tax, divorce or court proceedings?: No. A calculator result is not suitable where HMRC, a court, trustees, an EOT, opposing parties or another third party will rely on the valuation. Those situations need a formal, evidenced valuation prepared for that purpose.

Talk your figures through with us

A free initial consultation with our team, then a short written indicative range where the situation warrants it. No obligation.

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