The sale and purchase agreement is the legal document that completes the commercial framework begun in the heads of terms. By the time the SPA is in front of you, the commercial terms have been agreed in principle — price, structure, conditions, earn-out mechanics — but the SPA translates those terms into binding legal obligations. Every ambiguity deferred from the heads of terms becomes a point of negotiation here, at the most expensive stage of the transaction. Understanding the SPA’s key components before your solicitor starts drafting allows you to engage with it strategically rather than reactively.
1. Structure of a Dental Practice SPA
A dental practice sale and purchase agreement is organised around discrete sections. The core commercial obligations — the deal — sit in the main body. The definitions, warranties, indemnities, and schedules that give them substance sit in attached documents. Both matter equally.
Definitions. The definitions section is not administrative boilerplate. For any deal containing an earn-out, the defined term for EBITDA is the single most commercially significant provision in the agreement. The earn-out schedule calculates deferred consideration by reference to this definition. If there is any inconsistency between the EBITDA definition in the SPA and the description in the heads of terms, the SPA definition governs. Agreeing it carefully at HOT stage is necessary; verifying it again when the SPA is drafted is essential.
Consideration and payment mechanics. The SPA records the total consideration, how it is divided between the completion payment and any earn-out, and the mechanics for calculating and paying each element. Where completion accounts apply — adjusting the completion payment for working capital movements between the locked-box date and completion — the locking and adjustment mechanism will be set out here. Sellers should confirm these mechanics with their accountant before execution.
Conditions precedent. The SPA records the conditions that must be satisfied before the buyer’s obligation to complete is triggered. For dental practices, these typically include CQC registration for the incoming provider, NHS contract novation, satisfactory completion of due diligence, and, where the buyer is leveraged, confirmation of finance.
2. Conditions Precedent and the Long-Stop Date
The conditions precedent section does more than list conditions — it governs what happens when conditions are not met on schedule.
CQC registration condition. The most time-sensitive condition in the majority of dental practice sales. The incoming provider must be registered with the CQC before or at completion. CQC processing times for new dental provider applications can run to several months, and delays are common where applications are incomplete. The long-stop date for this condition should be realistic to the CQC’s actual timeline — typically four to six months from exchange — not set artificially short to create commercial pressure.
NHS novation condition. The NHS GDS or PDS contract transfers to the buyer by novation, subject to NHS England’s approval. Timelines vary by commissioner and region. The SPA should record the novation application date and include a long-stop that reflects the specific commissioner’s typical processing time.
Long-stop mechanics. A long-stop gives both parties a defined endpoint: if conditions are not satisfied by the date, either party may withdraw without breach. Where a condition delay is outside both parties’ control — the CQC processing backlog being the clearest example — SPAs often permit the long-stop to be extended by mutual agreement. The SPA should address this explicitly: who can trigger an extension, by how much, and whether a break fee applies if the deal does not proceed after extension.
3. Warranties
Warranties are statements of fact made by the seller about the practice as at completion. If a warranty is untrue, the buyer has a claim for breach — but only if they can prove both the breach and that it caused quantifiable loss. This distinguishes a warranty from an indemnity.
Business and financial warranties confirm that the practice’s accounts have been properly prepared, that management information given to the buyer is accurate, and that there are no material undisclosed liabilities.
NHS warranties address UDA delivery performance, confirmation that no NHS England clawback demands are outstanding or anticipated, and that no issues exist with the performer list status of any dentist at the practice. These are among the most closely scrutinised warranties in an NHS practice sale. Sellers with variable UDA delivery history should prepare a clear documented explanation before the SPA negotiations begin.
CQC warranties confirm that the practice’s CQC registration is current and clean — no open enforcement action, no compliance requirements, no Warning or Requirement Notices outstanding. Sellers with any unresolved CQC matters should address them before the SPA is finalised; an adverse CQC position at completion is one of the most common triggers for a buyer seeking a specific CQC compliance indemnity.
Employment warranties confirm that all staff are employed on terms consistent with the copies provided during due diligence, that there are no outstanding employment claims or grievances, and that the seller has no knowledge of circumstances likely to give rise to a claim.
Property warranties confirm the title and condition of the lease, that no rent is in arrears, that there are no landlord disputes, and that the lease has not been varied without consent.
4. Warranty Limitations
No seller gives open-ended warranties. The SPA will contain a schedule or clause setting the limits of warranty liability.
The cap. A financial cap limits the maximum aggregate liability for warranty claims. This is almost always set by reference to the completion payment — the cash paid at legal completion — not total consideration. Where the deal includes a £3m completion payment and a £2m earn-out, a cap set at the completion payment means earn-out sums are excluded from the warranty liability calculation. Sellers should confirm precisely what the cap is denominated against.
The basket and de minimis. The de minimis excludes individual claims below a threshold value from the warranty regime entirely. The basket — or tipping basket — sets a lower threshold below which no aggregate claims can be brought; once crossed, the buyer may claim the full aggregate (a tipping basket) or only the excess (a deductible basket). Both thresholds are negotiated; sellers should expect buyers to propose low thresholds and contest them.
Time limits. Warranty claims must be formally notified within a fixed period after completion — typically two to three years for business and financial warranties, longer for tax and title warranties. Claims not notified within the time limit are extinguished.
Knowledge qualifiers. Some warranties are given subject to the seller’s awareness — they are breached only if the seller knew, or should reasonably have known, of the relevant facts. Knowledge qualifiers narrow warranty exposure. The SPA should specify whose knowledge counts and whether constructive knowledge is included.
5. Indemnities: Warranty vs Indemnity Distinction
The warranty versus indemnity distinction is commercially significant and frequently misunderstood by sellers encountering a dental SPA for the first time.
A warranty claim requires the buyer to prove breach and loss. The buyer must establish that the warranty statement was untrue and that the untruth caused a quantifiable financial loss. If the buyer cannot demonstrate both, the claim fails regardless of the breach.
An indemnity requires only the triggering event. If the NHS raises a clawback demand covered by the indemnity, the buyer receives a pound-for-pound payment equal to that demand — without proving loss beyond the direct liability. Indemnities are not always subject to the warranty cap. They are a stronger form of protection for the buyer and, from the seller’s perspective, a more serious obligation.
NHS clawback indemnity. Where UDA delivery has fallen short of the contracted target in any year before completion, the SPA will typically include a specific indemnity covering any NHS clawback demand arising from that underperformance. Sellers should negotiate a time limit — matching the NHS’s own clawback window — a cap where achievable, and a requirement that the buyer takes reasonable steps to challenge or mitigate any demand before calling on the indemnity.
CQC compliance indemnity. Where there are open CQC regulatory matters at the time of sale, buyers will seek an indemnity covering compliance costs and regulatory penalties arising from pre-completion issues. As with the NHS clawback indemnity, sellers should seek time limits and, where possible, a financial cap.
6. The Earn-Out Schedule
The earn-out schedule is the most important annexure in many dental practice SPAs. It governs the calculation of deferred consideration and sets out the operative EBITDA definition, the earn-out period, the review process for agreeing results, and the payment mechanism.
The EBITDA definition in the schedule governs. Whatever was agreed in the heads of terms is now embodied in this definition. Sellers should compare the schedule definition directly against the HOT to confirm it matches. Common divergences include the treatment of group management charges, the handling of one-off costs, and the baseline clinical staffing assumptions. These divergences are not always intentional — they arise from different drafters interpreting the same commercial agreement differently. The time to correct them is before the SPA is executed.
Costs charged by the buyer post-completion. The earn-out EBITDA definition should exclude costs imposed by the buyer that were not present in the standalone practice — group overheads, integration charges, rebranding costs. Where the SPA earn-out definition does not include these exclusions explicitly, negotiate them in before signing.
What Sellers Should Watch For
Verify the earn-out EBITDA definition against the HOT. Do this before the SPA is finalised. If there is a divergence, resolve it at this stage rather than in earn-out disputes eighteen months post-completion.
Check what the warranty cap is denominated against. Confirm that the cap applies to the completion payment, not total consideration. Including earn-out sums in the cap denominator significantly inflates the seller’s maximum warranty liability.
Seek time limits and caps on indemnities. An open-ended NHS clawback indemnity creates exposure beyond the NHS’s own enforcement window. Time-limit the indemnity to match the NHS’s statutory position.
Covenant geography and duration. The restrictive covenants in the SPA should reflect what was agreed commercially: proportionate in geographic scope, matched to the earn-out period where relevant, and including an NHS associate carve-out where the seller intends to continue clinical practice in the area.
CQC long-stop provisions. Confirm the long-stop date is realistic for the CQC’s actual processing timeline and that extension mechanics are clearly drafted. A long-stop without an extension provision creates an artificial deadline that exposes both parties to unnecessary deal risk.
The SPA is where the heads of terms become binding law. The quality of the HOT determines how contested the SPA negotiation will be. For guidance on what to agree at HOT stage to reduce SPA friction, see dental practice heads of terms. For an overview of the complete process, see how to sell your dental practice.
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Frequently Asked Questions
What is the difference between a warranty and an indemnity in a dental practice SPA? A warranty is a statement of fact that gives the buyer a claim if untrue — but only if they can prove both the breach and quantifiable loss caused by it. An indemnity is a direct obligation to pay when a triggering event occurs, without requiring the buyer to prove loss beyond the trigger itself. NHS clawback indemnities and CQC compliance indemnities are the most common indemnities in dental practice SPAs. Indemnities are not always subject to the warranty cap, making them a more significant seller obligation.
How is the warranty cap typically set in a dental practice SPA? The cap limits the seller’s maximum aggregate liability for warranty claims and is almost always denominated against the completion payment — the cash paid at legal completion — not total consideration. Where the deal includes a completion payment and a deferred earn-out, the cap typically excludes earn-out sums from the calculation. Sellers should confirm the precise cap structure and verify it matches what was agreed commercially at heads of terms.
Why does the earn-out EBITDA definition in the SPA schedule matter if it was agreed in the HOT? Because the SPA definition governs. HOTs are non-binding documents drafted in commercial language; the SPA is the binding legal agreement, and the earn-out schedule sets out the operative definition. Where the SPA and HOT definitions diverge — as they often do through different drafters interpreting the same commercial agreement differently — the SPA controls. Sellers should compare the two explicitly before execution and resolve any divergence before signing.
What is the NHS clawback indemnity and how should sellers limit it? The NHS clawback indemnity covers any clawback demand raised by NHS England for UDA underperformance in contract years prior to completion. Sellers should negotiate a time limit matching the NHS’s own clawback window — typically two to three years from the last contract year covered — rather than accepting an open-ended obligation. Where possible, seek a financial cap and a requirement that the buyer takes reasonable steps to challenge or mitigate any demand before calling on the indemnity.
How do long-stop dates work for CQC conditions in a dental practice SPA? The CQC condition requires the incoming provider to obtain CQC registration before or at completion. The long-stop sets the date by which, if the condition is not met, either party may withdraw without breach. It should be set realistically — allowing four to six months for a straightforward application — and the SPA should include a mechanism for extension by mutual agreement where delay arises through no fault of either party.