One of the first questions most dental practice principals ask when they start thinking about selling is: how long is this going to take? It is a reasonable question — and the honest answer is that a well-prepared practice typically takes between six and twelve months from the decision to sell through to legal completion.
The range is broad because the timeline is not fixed. It is shaped by how prepared your practice is when you go to market, how complex the transaction is, and how efficiently the various regulatory processes move. Understanding each phase of the process — and what drives delays — helps you plan your exit on your own terms rather than being surprised by the timeline.
The Five Phases of a Dental Practice Sale
Phase 1 — Preparation: 0 to 6 Months Before Going to Market
The preparation phase is the most variable part of the timeline, and it is the one you have the most control over. Principals who begin preparation twelve to twenty-four months before their intended sale date consistently achieve better prices and shorter transaction timelines than those who go to market before they are ready.
Preparation typically involves:
- Getting three years of statutory accounts and management accounts in order
- Normalising EBITDA (stripping out owner-specific costs to show true maintainable earnings)
- Ensuring CQC compliance documentation is current and inspection rating is at least “Good”
- Formalising associate agreements — any verbal arrangements need to be in writing
- Addressing NHS UDA under-delivery if it exists
- Organising the data room (NHS contract documents, lease, compliance records, equipment list)
For a detailed preparation checklist, see our guide on how to prepare a dental practice for sale.
A practice that is fully prepared before going to market will move through phases 2–5 faster and encounter fewer obstacles. A practice that goes to market before it is ready will often stall mid-transaction — sometimes losing a buyer entirely.
Phase 2 — Marketing and Offers: 1 to 3 Months
Once preparation is complete, a specialist broker will conduct a confidential valuation, prepare an information memorandum, and approach a targeted pool of qualified buyers.
For a well-prepared dental practice, this phase typically produces offers within four to twelve weeks. The buyer pool for dental practices includes:
- Individual dentists acquiring their first or second principal position
- Small regional dental groups (typically 2–10 practices) expanding
- Corporate consolidators and PE-backed dental groups
- NHS-focused groups seeking UDA capacity in specific regions
Practices in high-demand areas or with strong NHS contracts tend to attract multiple offers quickly. Practices in areas with limited buyer interest, or with characteristics that narrow the buyer pool (very rural locations, specific NHS contract sizes), may take longer.
Once a preferred buyer is identified, heads of terms are agreed — a non-binding document that sets out the key commercial terms before solicitors are engaged.
Phase 3 — Due Diligence: 6 to 12 Weeks
Due diligence is where most dental practice transactions slow down, and for good reason — it is genuinely complex. Buyers and their teams will review financial, legal, clinical, and regulatory aspects simultaneously.
For a typical dental practice, due diligence covers:
- Three years of accounts, management accounts, and tax returns
- NHS contract documentation, UDA performance history, and ICB correspondence
- CQC registration and most recent inspection report
- All associate and staff employment agreements
- Patient membership plan data (plan provider, membership count, churn)
- Lease documentation, decontamination records, and equipment service history
- HMRC correspondence
Well-organised practices — those with a clean data room and no outstanding regulatory issues — can move through due diligence in six to eight weeks. Disorganised practices, or those with unresolved CQC issues or NHS under-delivery, can take significantly longer. In the worst cases, due diligence uncovers issues that trigger renegotiation or lead a buyer to withdraw.
Phase 4 — NHS Contract Novation: 3 to 6 Months
For NHS and mixed practices, the novation of the NHS contract is often the longest single step in the transaction — and the one most principals are not prepared for.
The NHS contract does not transfer automatically. It must be approved by NHS England or the Integrated Care Board through a formal novation process. This involves submitting an application, NHS bodies reviewing the proposed new provider, and — in some cases — approval from NHS England’s central team.
Novation can take three to six months, sometimes longer in areas with high NHS workload or complex contracts. The key points to understand:
- Novation does not begin until heads of terms are agreed — it cannot be initiated speculatively
- A sale cannot complete until novation is approved — this is a hard dependency
- Both buyer and seller have legal obligations during the novation process
For a detailed explanation of the novation process, read our guide on NHS contract novation when selling a dental practice.
For NHS practices, novation is typically the constraint that governs the overall transaction timeline. This is why experienced dental practice brokers emphasise beginning the novation application as early as possible once heads of terms are signed.
Phase 5 — Legal Completion: 4 to 8 Weeks
Once due diligence is satisfactory and novation is approved (for NHS practices), solicitors on both sides draft and exchange the sale and purchase agreement. This covers the commercial terms, warranties, indemnities, restrictive covenants, and the mechanics of the transfer.
For a straightforward transaction, legal completion takes four to six weeks once heads of terms are agreed and due diligence is substantively complete. More complex transactions — those involving property assets, associate retention agreements, or complex tax structuring — can take longer.
On completion day, the practice ownership transfers and the proceeds are received.
Total Timeline Summary
| Phase | Typical Duration |
|---|---|
| Preparation (pre-market) | 6–24 months |
| Marketing and offers | 1–3 months |
| Due diligence | 6–12 weeks |
| NHS contract novation (if applicable) | 3–6 months |
| Legal completion | 4–8 weeks |
| Total (from instruction to completion) | 6–18 months |
For private-only practices (no NHS contract), the absence of novation typically means the process completes in six to twelve months. For NHS and mixed practices, twelve to eighteen months is a realistic expectation when novation is included.
What Causes Delays
Most delays in dental practice sales fall into a small number of categories:
CQC compliance issues. A practice with outstanding improvement notices or a “Requires Improvement” inspection rating will either fail to attract buyers or encounter significant due diligence friction. Resolving CQC issues before going to market removes the single most common transaction blocker.
Disorganised due diligence. Slow, incomplete, or inconsistent responses to due diligence requests create uncertainty and erode buyer confidence. A data room that is populated and organised before marketing begins resolves this entirely.
NHS under-delivery. Buyers will model the NHS contract at its delivered value rather than the contracted allocation. Significant under-delivery not only reduces headline value but raises questions about contract sustainability.
Associate uncertainty. If key associates have not committed to staying post-sale — or if there are associates with no written agreements — buyers factor in the risk of clinical team disruption. Formalising agreements and having retention conversations with key associates before going to market reduces this risk significantly.
Lease complications. A short remaining lease term, assignment restrictions, or a landlord who is slow to respond to assignment requests can delay or block completion.
How to Shorten Your Timeline
The single most effective thing a principal can do to shorten the sale timeline is to begin preparing twelve to twenty-four months before the intended completion date. Practices that go to market fully prepared move through due diligence faster, encounter fewer unexpected issues, and typically see completion in the lower half of the timeline range.
Specific preparation steps that have the most impact on timeline:
- File and finalise three years of accounts before going to market
- Resolve any CQC issues — do not go to market with outstanding notices
- Formalise all associate agreements before due diligence begins
- Organise a complete data room before receiving the first offer
- Understand the NHS novation process and plan for its timeline
For a full checklist of preparation steps, our guide on how to prepare a dental practice for sale covers each area in detail.
If you are ready to understand what your practice is currently worth and how long your specific transaction is likely to take, get a free confidential valuation from a specialist dental practice broker. You can also explore the process further on our sell my dental practice page, or visit our frequently asked questions section for more on the process.
Frequently Asked Questions
How long does it take to sell a dental practice in the UK?
For a well-prepared practice, the typical timeline is six to twelve months for a private practice and twelve to eighteen months for an NHS or mixed practice (the additional time reflects the NHS contract novation process). Preparation before going to market is the single biggest factor in reducing the timeline.
Why does NHS contract novation take so long?
The novation process requires NHS England or the Integrated Care Board to approve the transfer of the contract to a new provider. This involves administrative review, due diligence by NHS bodies on the proposed buyer, and sign-off from the relevant NHS authority. In busy ICB areas or for complex contracts, this process can take four to six months.
Can I sell my dental practice faster if I find my own buyer?
Finding a buyer directly (without a broker) does not significantly shorten the transaction timeline — the same due diligence, legal, and (for NHS practices) novation steps apply regardless of how the buyer is introduced. What a specialist broker does is ensure the buyer pool is properly qualified, the price is optimised, and the process is managed in a way that protects confidentiality and your negotiating position.
What can I do to make the sale process faster?
Prepare thoroughly before going to market: have three years of accounts ready, resolve any CQC issues, formalise associate agreements, organise your data room, and understand the NHS novation timeline if applicable. Well-prepared practices consistently complete in the lower half of the typical time range.
Does it take longer to sell a larger dental practice?
Larger practices — multi-surgery, multi-associate operations with significant NHS contracts or patient membership schemes — typically attract more interest but require more thorough due diligence. A larger practice with a strong CQC rating and organised documentation can still complete within twelve months. Complexity is more a factor of NHS contract size, lease structure, and associate arrangements than practice revenue alone.