A dental practice’s value is not a simple multiple of turnover. It is driven by NHS versus private income mix, adjusted EBITDA, the proportion of value sitting in goodwill rather than tangible assets, and how dependent that goodwill is on the current owner personally. Two practices with identical turnover can be worth very different amounts once these factors are properly assessed, which is why a credible valuation matters as much for a buyer deciding what to offer as it does for a seller deciding what to ask.
We act for both buyers and sellers in dental practice transactions, which gives us a clear view of how valuations actually hold up under negotiation and due diligence, not just how they look on paper. This guide sets out the factors that genuinely move the price, and what to do next once you understand where your practice sits.
How Dental Practice Valuations Are Calculated
The standard approach used across the sector is an earnings-based method: normalised, or adjusted, EBITDA (earnings before interest, tax, depreciation, and amortisation) multiplied by a market multiple. “Normalised” matters here, since raw accounting profit is adjusted to strip out one-off costs and to reflect the owner’s clinical work at a fair market rate rather than at whatever drawings figure appears in the accounts. Two practices with the same headline turnover can have very different adjusted EBITDA once this exercise is done properly.
Sector advisers commonly apply multiples in the region of 6 to 7 times adjusted EBITDA for an average practice, rising towards 9 times for exceptional, high-growth practices, with prime London practices sometimes commanding higher multiples again. These figures are market-standard ranges rather than a fixed rule, and the multiple actually achieved depends heavily on the specific factors below, so treat any generic multiple as a starting point for discussion, not a number to rely on without a proper valuation.
NHS Versus Private Income Mix
This is consistently one of the strongest drivers of value. Private income generally attracts a higher multiple than NHS income tied to a contract, because it carries fewer regulatory constraints and is not dependent on delivering a set volume of units of dental activity to a commissioner’s satisfaction. That does not mean NHS contracts are worth little. A well-performing NHS contract with reliable delivery against target is a valuable, income-generating asset in its own right, and for many practices remains the single most valuable line item in the sale, but it is typically valued differently to equivalent private turnover.
Buyers and valuers will also look closely at how NHS income is likely to be affected by the NHS dentistry quality and payment reforms taking effect from 1 April 2026, which change how urgent care activity is treated within GDS and PDS contracts. A practice whose NHS income depends on arrangements affected by these reforms needs its valuation approached with that transition specifically in mind, not on the basis of historic delivery data alone.
Goodwill: The Largest, and Most Fragile, Component
Goodwill commonly represents somewhere in the region of 60 to 80% of a dental practice’s total sale price, with tangible assets such as equipment and fit-out making up the balance. Given how much of the price sits here, understanding what kind of goodwill you are buying or selling matters enormously.
Practitioners in this sector generally distinguish between two types:
- Personal goodwill, tied directly to the individual dentist’s relationship with their patients. This is the most fragile form of value, since it can walk out the door with the seller if patients are more loyal to the person than the practice.
- Free (or practice) goodwill, attached to the practice itself, its location, its reputation, and its systems, rather than to any one clinician. This transfers far more reliably to a new owner and is generally valued more highly as a result.
A buyer should always ask how much of a practice’s goodwill is personal versus free, and a seller who wants to maximise value ahead of a sale should be actively working to convert personal goodwill into free goodwill, through broader clinical teams, strong systems, and reducing single-dentist dependency, well before marketing the practice.
Other Factors That Move the Number
| Factor | Effect on valuation |
|---|---|
| Location | Affluent and high-footfall areas, particularly parts of London and the South East, tend to command higher multiples, reflecting both private fee potential and buyer demand |
| Financial performance trend | A practice with three years of consistent or growing adjusted EBITDA values more highly than one with flat or declining performance, even at the same current turnover |
| Equipment and premises condition | Modern, well-maintained equipment and a fit-for-purpose surgery reduce a buyer’s post-completion capital expenditure, supporting a stronger price |
| Associate and staff structure | A practice with properly documented associate agreements and low staff turnover is lower risk, and lower risk supports a higher multiple |
| CQC compliance history | A clean CQC record with no unresolved enforcement action removes a significant source of buyer hesitation and due diligence delay |
| Lease terms | A long, assignable lease on reasonable terms adds security; a short lease or one requiring difficult landlord consent can depress value or complicate the sale |
What Valuation Means for Deal Structure
The valuation you arrive at does not just set an asking price, it also shapes how the deal should be structured. A practice heavily weighted towards personal goodwill or a single NHS contract may need warranty and indemnity protection built around that specific risk. A high-value goodwill component affects tax planning on both sides, including corporate purchasers’ ability to claim fixed-rate relief on goodwill acquired since 1 April 2019, subject to the applicable conditions. This is why valuation, tax structuring, and legal documentation are best considered together from an early stage, rather than treating valuation as a standalone exercise that happens before the “real” legal work begins.
Our mergers and acquisitions team works alongside valuers and accountants for exactly this reason, so the structure of the deal reflects where the practice’s value actually sits, not just its headline price.
Tax on Sale: What a Seller Actually Keeps
A high valuation only matters in practice once you know what you keep after tax. Gains on selling a dental practice are subject to Capital Gains Tax, currently charged at 18% within the basic rate band (after the £3,000 annual exempt amount) and 24% above it or for higher rate taxpayers, for disposals from 6 April 2026. Where Business Asset Disposal Relief applies, the rate drops to a flat 18% from 6 April 2026 (having risen from 14% for disposals between 6 April 2025 and 5 April 2026, and 10% before that), subject to a £1 million lifetime limit and conditions including at least two years’ qualifying ownership and, for a share sale, holding at least 5% of the company’s shares and voting rights as an employee or officer.
Two points are worth flagging clearly. First, the gap between the standard higher rate (24%) and the Business Asset Disposal Relief rate (18%) has narrowed considerably compared to previous years, which changes the practical value of qualifying for the relief and is worth factoring into any exit planning. Second, whether a sale structure qualifies for relief at all depends on ownership structure and timing decided well before completion, not something that can be retrofitted once a buyer is found. We cover the practicalities of moving from sole trader or partnership status into a limited company structure, and the CGT and goodwill implications of doing so, in our companion guide on dental practice incorporation and CGT.
Getting a Valuation You Can Actually Rely On
A generic online multiple or a broker’s indicative estimate is a reasonable starting point for a conversation, but it is not a substitute for a proper valuation grounded in your practice’s specific NHS and private mix, adjusted EBITDA, goodwill composition, and premises position. Whether you are buying and want to sense-check an asking price, or selling and want a defensible starting point for negotiation, getting this right early avoids both overpaying and under-selling.
What This Means for You
Valuation sits at the centre of every dental practice transaction. Get it wrong and a buyer overpays for goodwill that will not survive the change of ownership, or a seller accepts less than the practice, and the tax planning built around it, is genuinely worth. If you are working through a purchase or preparing a sale, our guides on how to buy a dental practice and how to sell a dental practice set out the wider legal process each side needs to follow.
If you would like to talk through your practice’s valuation, how it affects deal structure, or the tax planning that goes with it, before you commit to a price on either side of a transaction, get in touch with our healthcare team or call us on +44 207 566 1188. You can also reach us at info@gurvelegal.com. Given how much of a dental practice’s value depends on getting the structure right, it is worth having that conversation before heads of terms are signed, not after.
