How to Value a Business: Methods, Formulas and UK Examples

To value a business, choose an appropriate financial measure, establish sustainable performance, apply a defensible method and reconcile the result to the shares or assets being sold. The method must fit the business. A software subscription company, an engineering workshop and an owner-run practice do not have interchangeable economics.

This is the methods guide. For a faster owner-level answer, start with how much is my business worth?. For an indicative model you can use now, try the free valuation calculator. Neither replaces an independent valuation for a transaction, dispute or statutory purpose.

The four main business valuation methods

These are cross-checks, not four numbers to average mechanically. A method can be mathematically correct but commercially irrelevant.

Earnings multiples: a step-by-step calculation

Start with accounts that reconcile. EBITDA is earnings before interest, tax, depreciation and amortisation. Normalised EBITDA adjusts for costs and income that will not recur under a realistic operating model.

Build an adjustment schedule. Include the original ledger entry, amount, reason and evidence for each change. A genuine exceptional legal cost might be added back; replacing a founder who currently works for below-market pay requires a cost deduction. See the EBITDA add-backs guide.

Then find a relevant multiple. Check geography, date, size, growth, revenue quality and whether the reported price is enterprise value or equity value. The industry multiples guide explains why a public-company ratio or large acquisition is not automatically a benchmark for an SME.

Finally, bridge to equity value. A simplified cash-free, debt-free framework is enterprise value less debt and debt-like items, plus agreed surplus cash, with any working-capital adjustment measured against the contractual target. Do not deduct all working capital: normal operating working capital is commonly part of what a buyer expects to receive.

Revenue multiples: when turnover matters

Revenue can be useful where comparable businesses have a reasonably consistent relationship between revenue and future cash flow. Subscription software and recurring accountancy fees are examples where buyers may discuss a revenue-based reference point, but not on the same basis.

Turnover without context is weak evidence. Two £2 million-revenue businesses can have different gross margins, retention, cash requirements and owner involvement. Establish whether the denominator is annual revenue, annual recurring revenue, gross recurring fees or another specific metric. Do not substitute one for another.

Asset-based valuation

Reassess the assets a buyer will actually acquire, including their condition, ownership and likely realisable value. Review associated liabilities and costs of sale or closure where relevant. Book value is not necessarily market value.

This approach can help with property, machinery or investment-heavy businesses. For an established service business, the relationships, team and future earning capacity may matter much more than the balance sheet. Conversely, a profitable business can still have an asset-value floor worth examining.

Discounted cash flow, without false precision

A DCF forecasts the cash the business can generate, allows for reinvestment and working capital, and discounts those flows for time and risk. The terminal value reflects cash generation beyond the explicit forecast.

Use scenarios. A small change in a discount rate or long-term growth assumption can dominate the answer. If the forecast assumes a new product succeeds, a major contract renews and margins expand, show what happens when they do not. A spreadsheet with decimal places is not a substitute for evidence.

How to value a small business: SDE versus EBITDA

Seller's discretionary earnings (SDE) is often used in smaller owner-operated businesses, especially in the US. It commonly starts with earnings and adjusts for one working owner's compensation and qualifying discretionary or non-recurring items. Definitions vary, so reconcile exactly what is included.

A buyer purchasing an owner-operated job may consider SDE. A buyer hiring a management team needs earnings after paying that team. A 3× SDE calculation and a 3× EBITDA calculation are not equivalent valuations. Never apply an EBITDA multiple to SDE without adjustment.

Three worked UK examples

All multiples below are hypothetical teaching assumptions, not sector benchmarks or offers.

For the first company, £200,000 net debt would reduce a simplified £1.2m enterprise value to £1m equity value, assuming no other adjustments. That is before fees and tax. If some consideration is conditional, it is not all cash at completion.

What moves the multiple?

Buyers assess scale, customer concentration, growth, founder dependency, recurring revenue, margins, competitive advantage, geographic concentration and business maturity. Evidence of transferability is often more valuable than a persuasive growth story.

A reliable second-tier team and contracted repeat business can support the case. An unprofitable growth plan, expiring contracts or one dominant customer can weaken it. Build the evidence before the sale process; read how to sell a business in the UK to put valuation into the wider transaction.

What the deal archive can and cannot show

The Market Rocket management acquisition announcement illustrates why transaction context matters. A management route does not establish a transferable earnings multiple, and an announcement is not proof of completion. Our archive snapshot did not contain a usable price-and-earnings pair for that record.

Use named deals to understand buyers and structure. Derive a multiple only when both the price basis and matching earnings period are disclosed and comparable. Missing information should remain missing.

When to get a formal valuation

Use a qualified professional when the purpose demands it: shareholder negotiations, litigation, tax, financial reporting or a material transaction where an independent view is needed. Agree the purpose, basis, valuation date, scope, independence and fee in writing. There is no universal professional fee that applies to every company.

For a sale, improve the evidence before arguing over the conclusion. Bring reconciled accounts, forecasts, customer analysis, debt schedules and your management-cost adjustments.

Go deeper

Use the industry multiples guide, accountancy practice guide and valuation-gap explanation to challenge assumptions. Then return to the calculator with a range you can explain, not simply the highest number.

FAQs

What's the best way to value a business?

Use the method that reflects how the business generates cash and what comparable buyers acquire. For a profitable trading company, sustainable earnings and relevant transaction evidence are often useful starting points, with other methods as cross-checks.

What is asset-based valuation?

It is an assessment of relevant assets less liabilities, using values appropriate to the valuation purpose. It is not automatically the same as the net assets printed in the accounts.

What is the formula for valuing a small business?

One common starting formula is normalised earnings multiplied by an appropriate multiple. The earnings definition, multiple and adjustments to equity value must all be consistent. It is an indication, not a binding price.