How Long Does It Take to Sell a Dental Practice?

Selling a dental practice takes longer than most principals expect. From the first decision to sell to money in the bank, the typical timeline is 12–24 months — and for NHS practices, it can stretch further due to the contract novation process. Understanding why the sale takes this long, and what drives each stage, helps you plan your exit properly.

The Short Answer

For most dental practices, the realistic timeline from initial decision to completion is:

• Well-prepared practice with a strong buyer: 9–14 months
• Typical NHS/mixed practice: 12–18 months
• Complex practice (multiple sites, high NHS dependency, valuation disputes): 18–24+ months

The single biggest variable is NHS contract novation — the process by which the NHS contract is transferred from you to the buyer. This is outside your control and the buyer’s control, and it can add 3–6 months to any NHS practice sale.

Stage 1: Preparation (3–12 months)

Before going to market, most principals need a preparation period. This is not cosmetic — it is substantive work that directly affects the price the practice achieves:

• Reducing principal dependency: If you personally deliver more than 40–50% of NHS UDAs or private income, buyers will either discount the price or require an earn-out. Transitioning sessions to associates takes time but changes the valuation picture materially.
• NHS UDA delivery: Buyers want to see 95%+ UDA delivery for at least 2 years. If delivery has been below that, building the track record before going to market reduces buyer risk pricing.
• Lease renewal: If the lease has under 7 years remaining, negotiating a renewal before marketing prevents a lease-related valuation discount.
• Accounts preparation: Three years of clean, accountant-prepared accounts showing a stable or improving EBITDA are expected by all buyers and their lenders.
• CQC compliance review: Any outstanding compliance actions should be resolved before the sale process — not discovered in due diligence.

Principals who begin preparation 12–18 months before their intended sale date consistently achieve higher prices than those who rush to market.

Stage 2: Valuation and Marketing (1–3 months)

Once the practice is ready, the formal sale process begins with an independent valuation from a specialist dental practice broker. The valuation considers:

• Normalised EBITDA
• NHS contract value and UDA delivery record
• Lettings book equivalent (patient base quality)
• Lease terms, equipment condition, and compliance status

Marketing to buyers is typically conducted under confidentiality — potential buyers sign NDAs before receiving detailed practice information. The marketing period depends on how in-demand the practice is:

• High-demand practices (strong NHS contract, urban location, good private income mix, team depth) attract multiple buyer enquiries within weeks
• Niche or smaller practices may take longer to identify the right buyer

The marketing phase typically runs 4–12 weeks before a preferred buyer is identified.

Stage 3: Heads of Terms (2–4 weeks)

Once a preferred buyer is selected, heads of terms (HoT) are agreed. This is not a binding contract but sets the framework for the deal: price, payment structure, earn-out conditions (if any), key assumptions, and timelines.

For straightforward deals — clean NHS contract, full price buyer, no earn-out — HoT are agreed quickly. Where there are complications (earn-out structure, staged consideration, vendor loan, multiple sites), HoT negotiation takes longer.

Stage 4: Due Diligence (6–12 weeks)

Due diligence is the buyer’s formal investigation of the practice before exchange of contracts. The buyer (and their solicitors) will examine:

• Financial due diligence: 3–5 years of accounts, management accounts, NHS remittance statements, private income records, payroll, VAT returns
• NHS contract review: Contract documents, UDA performance history, ICB correspondence, any previous performance notices
• Legal due diligence: Lease review, property title, employee contracts, associate agreements, CQC registration
• Equipment and premises inspection: Condition survey, equipment service records, decontamination compliance evidence
• CQC and compliance audit: Registration status, inspection history, staff training records, policies and procedures

Due diligence runs concurrently with NHS contract novation in most transactions, which is the critical path item.

Stage 5: NHS Contract Novation — The Long Pole

For NHS and mixed practices, the NHS contract novation is almost always the longest single step in the sale. Novation is the process of transferring the NHS contract from the selling dentist to the buying dentist — requiring ICB approval.

The novation timeline:

1. Buyer submits application to the ICB (typically once HoT are agreed)
2. ICB reviews the buyer’s contractor eligibility, qualifications, and criminal record checks
3. ICB issues a new GDS or PDS contract in the buyer’s name
4. Completion can proceed once novation is issued

The ICB process typically takes 3–6 months. Some ICBs are faster; some are slower. In all cases, the seller and buyer have limited ability to accelerate it.

What can delay novation further:

• The buyer being a new contractor (no previous NHS contract history) — more checks required
• ICB staff changes or administrative backlog
• Missing documentation (CQC certificates, insurance, qualification evidence)
• The practice changing hands across ICB boundaries

Practical implication: the moment you identify a buyer and agree heads of terms, the novation application should be submitted immediately. Every week of delay in submitting is a week added to the overall timeline.

Stage 6: Exchange and Completion (2–6 weeks)

Once due diligence is complete and novation is issued, exchange of contracts and completion can proceed. Exchange is the legally binding point — both parties are committed at this stage. Completion is when money changes hands.

For asset sales (goodwill and equipment purchased separately from shares), completion typically happens on a set date agreed at exchange. For share sales (rare in dental practice transactions but possible in incorporated practices), the process is similar.

The period between exchange and completion is typically 2–6 weeks — time for practical handover preparations, staff notification, and patient communication.

Comparative Timeline: Buyer Types

DSOs and PE-backed groups often move quickly to heads of terms (experienced process) but run more intensive due diligence. Independent buyers may be slower to reach heads of terms (less experience of the process) but due diligence is usually less intensive.

What Can Delay a Dental Practice Sale?

Beyond NHS novation, the most common causes of unexpected delays:

Accounts inconsistencies — if the accounts don’t clearly support the asking price, buyers or lenders request additional information, which takes time to compile.

Undisclosed liabilities — HMRC compliance issues, employee disputes, CQC enforcement actions discovered in due diligence cause negotiations to pause while issues are addressed or priced in.

Lease complications — a lease that requires landlord consent for assignment, an outstanding rent review, or a landlord who is slow to respond can hold up exchange.

Lender delays — most independent buyers use specialist dental practice finance. Lenders have their own processing timelines, and they may request additional information. Complex structures or highly leveraged acquisitions take longer to finance.

Buyer financing falling through — if the buyer’s lender withdraws or reduces their offer, the buyer may need to renegotiate price, find additional capital, or withdraw. This is rare but can restart the buyer search process.

How to Minimise the Sale Timeline

The most effective actions to reduce the total sale timeline:

1. Start preparation early — addressing UDA delivery, lease, accounts, and principal dependency before marketing eliminates the most common reasons for delays or price reductions
2. Commission an independent valuation first — entering the market with a realistic, independently supported asking price attracts serious buyers faster than aspirational pricing that requires extensive justification
3. Submit novation early — the moment you have a buyer in principle, begin the novation application
4. Get documents ready in advance — a practice data room (financial records, contracts, compliance documentation, lease) pre-assembled before due diligence requests arrive compresses the due diligence phase

Get a free confidential dental practice valuation →

For a step-by-step guide to the full sale process from valuation to completion, see how to sell a dental practice in the UK. For preparation actions that maximise your sale value, see how to prepare your dental practice for sale.

Frequently Asked Questions

How long does it take to sell a dental practice in the UK?

Most dental practice sales take 12–18 months from the initial decision to completion — including 3–12 months of pre-sale preparation and 6–12 months of formal sale process. NHS contract novation is the longest single stage in the process and typically takes 3–6 months. Well-prepared practices with a clean NHS record and strong team depth complete faster than those that need significant pre-sale work.

How long does NHS contract novation take?

Typically 3–6 months. The ICB (Integrated Care Board) reviews the buyer’s eligibility, qualifications, and documentation before issuing a new contract. Some ICBs process applications faster; others have longer turnaround times. Submitting the novation application immediately after agreeing heads of terms is the most effective way to minimise this stage.

Can a dental practice be sold without the owner staying on?

Yes, and many are — but this is easier where the practice has team depth and low principal dependency. If the selling dentist personally delivers a significant proportion of NHS UDAs or private income, buyers will either discount the price to reflect attrition risk, or require the seller to remain on for 1–3 years post-sale (an earn-out structure). Reducing principal dependency before selling eliminates this requirement.

What slows down a dental practice sale most?

The NHS contract novation process, which is largely outside the seller’s and buyer’s control. After that, the most common causes of unexpected delays are: accounts that don’t clearly support the asking price; lease complications requiring landlord involvement; CQC or compliance issues discovered in due diligence; and lender delays in approving buyer financing.