Can I sell my NHS dental contract to another dentist?

No. NHS dental contracts are not saleable assets. They are personal to the performer and the practice. When you opt out, the contract is extinguished. You cannot transfer it to another dentist for payment. The only way to realise value from the contract is to sell the practice as a going concern, with the buyer taking over the contract via a novation or assignment process approved by NHS England. If you hand back the contract without a sale, the goodwill value tied to the NHS work is lost.

Do I pay capital gains tax if I opt out and go private?

Not directly on the opt-out itself. Opting out does not trigger a disposal for CGT purposes because the contract is not a chargeable asset. However, if you later sell the practice as a private-only business, the gain on the sale of goodwill and other assets is subject to CGT. The gain will be lower than if the NHS contract were still in place, because the goodwill value is reduced. Business Asset Disposal Relief (14% for 2025/26, rising to 18% from April 2026) may apply if you meet the conditions.

What happens to my NHS pension if I opt out of the contract?

Opting out of the NHS contract does not automatically end your NHS Pension Scheme membership. You can continue to contribute if you still perform NHS work (e.g., as a locum or associate). If you cease all NHS work, you stop accruing benefits in the scheme. Your existing benefits are preserved and will be paid at retirement. If you are within 10 years of retirement, the loss of future accrual can be significant. You should model the pension impact before opting out.

Is it better to hand back the contract or sell the practice?

From a tax perspective, selling the practice as a going concern with the contract transferring to the buyer is almost always better. It preserves goodwill value and allows you to claim CGT reliefs like BADR. Handing back the contract destroys goodwill value without any tax relief. However, if you cannot find a buyer (e.g., because UDA values are low or the patient list is declining), handback may be the only option. In that case, plan the transition carefully to minimise financial impact.

Practice Finance

What Are the Tax Implications of Opting Out of an NHS Dental Contract?

18 May 2026•Dental Finance Partners Editorial Team•8 min read

Opting out of an NHS dental contract is a major financial decision. The tax consequences depend on whether you sell the practice, transfer goodwill, or continue as a private practice. This guide covers the key tax implications for UK dentists.

Why Opting Out of an NHS Dental Contract Is a Tax Event

Opting out of an NHS dental contract is not simply a clinical or operational decision. It is a tax event with consequences for capital gains, VAT, pension contributions, and income tax. Whether you are a single-handed principal handing back a UDA contract or a multi-site group exiting NHS work entirely, the structure of the exit determines how much of the proceeds you keep.

This article explains the main tax implications of an NHS contract opt-out, covering goodwill valuation, capital gains tax (CGT), VAT on private practice, and NHS pension considerations. It is written for UK dentists who are considering or planning an exit from NHS dentistry, either to go fully private or to sell the practice.

Goodwill and the NHS Contract: What Happens When You Opt Out?

Goodwill is the intangible asset that represents the value of a dental practice beyond its physical assets. For an NHS-heavy practice, a significant portion of goodwill is tied to the NHS contract itself. When you opt out, that contract ceases to exist. The question is: does the goodwill value disappear, or does it transfer to the private practice?

In most cases, the goodwill value of an NHS contract is not separately saleable. If you hand back the contract to NHS England (or the equivalent body in Wales, Scotland, or Northern Ireland), you cannot sell it to another dentist. The contract is extinguished. However, if you sell the practice as a going concern and the buyer takes over the NHS contract, the goodwill transfers with the business. This is the typical route for a practice sale.

If you opt out and continue as a private practice, the goodwill shifts from NHS-dependent to private-patient-dependent. The valuation multiple may change. Private practices typically command higher EBITDA multiples (often 1.0-1.4x adjusted EBITDA) than NHS-heavy practices (0.6-1.0x). But the transition period can be risky: you lose guaranteed UDA income and must build a private patient list from scratch.

Goodwill Valuation on Opt-Out

If you sell the practice as a going concern and the buyer takes over the NHS contract, the goodwill is valued as part of the total practice price. The typical split is 60-80% goodwill, 20-40% tangible assets (equipment, fixtures, property). The goodwill multiple depends on the NHS/private mix, location, and profitability.

If you opt out and do not sell, the goodwill attributable to the NHS contract is effectively lost. You cannot claim a capital loss on it for tax purposes because the contract is not a chargeable asset in its own right. The goodwill is part of the practice's overall value, and its diminution is not separately recognisable for CGT purposes.

For a worked example: a single-handed principal with a 100% NHS contract generating £120,000 net profit per year might have a practice valued at £300,000-£400,000 (based on a 0.6-0.8x EBITDA multiple). If they opt out and go private, the practice value might drop to £150,000-£200,000 initially, until the private patient base builds. The £100,000-£200,000 difference is not a tax-deductible loss.

Capital Gains Tax on Practice Sale After Opt-Out

If you sell the practice after opting out (or as part of the opt-out process), the gain on goodwill and other chargeable assets is subject to CGT. The key reliefs available are:

Business Asset Disposal Relief (BADR): For 2025/26, the rate is 14% on gains up to £1 million lifetime limit. From 6 April 2026, the rate rises to 18%. To qualify, you must have owned the practice for at least two years and it must be a trading business.
Section 162 incorporation relief: If you transfer the practice to a company in exchange for shares, you can defer the CGT until you sell the shares. This is common when a principal incorporates a sole practice into a limited company.
Holdover relief: In limited circumstances, you can defer the gain if you gift the practice to a connected person (e.g., a family member).

If you opt out and then sell the practice as a private-only business, the goodwill value will be lower, but the CGT rate may still apply. The key is to structure the sale before the opt-out if possible, so the buyer takes over the NHS contract and the goodwill value is preserved.

For a principal selling a practice with £500,000 goodwill and claiming BADR, the CGT bill in 2025/26 would be £70,000 (14% of £500,000). If the sale happens after 5 April 2026, the bill rises to £90,000 (18%). Timing matters.

VAT Implications of Going Private

Dental treatment by a registered dental professional is exempt from VAT under VATA 1994 Schedule 9 Group 7. This applies whether the treatment is NHS-funded or privately paid. However, purely cosmetic treatments without a medical purpose can be standard-rated at 20%. Tooth whitening is a known borderline case that HMRC scrutinises.

If you opt out and go fully private, you need to consider your VAT registration position. The VAT registration threshold is £90,000 (as of 1 April 2024). If your private fee income exceeds this, you must register for VAT. However, because most dental treatment is exempt, you cannot charge VAT to your patients. This means you are in a "partial exemption" position: you make exempt supplies but incur VAT on your costs (equipment, materials, rent, etc.).

Partial exemption can be complex. You can only recover VAT on costs directly attributable to taxable supplies (e.g., cosmetic treatments). VAT on costs for exempt supplies (general dentistry) is irrecoverable. This creates a cost burden that many dentists do not anticipate.

If you are considering going private, you should review your cost base and VAT recovery position with a dental-specialist accountant. The practice accounting team at Dental Finance Partners can model the VAT impact of a private-only model.

NHS Pension Implications of Opting Out

The NHS Pension Scheme is a valuable benefit for many dentists. Opting out of the NHS contract does not automatically mean you leave the pension scheme. You can continue to make contributions as a non-GP provider if you still perform NHS work (e.g., as a locum or associate). But if you cease all NHS work, you stop accruing NHS pension benefits.

There are three sections of the NHS Pension Scheme: the 1995 section (closed to new members), the 2008 section (closed), and the 2015 CARE section (current). If you opt out and later return to NHS work, you re-join the 2015 section. The McCloud remedy applies to members who had benefits in legacy schemes between 1 April 2015 and 31 March 2022; at retirement, they can choose which scheme rules apply to that period.

If you are within 10 years of retirement, the loss of NHS pension accrual can be significant. For a principal earning £100,000 per year from NHS work, the annual pension accrual in the 2015 scheme is approximately 1/54th of pensionable earnings, or about £1,850 per year of pension income. Over 10 years, that is £18,500 per year of lost pension income (index-linked).

You should model the pension impact before opting out. The NHS Pension Scheme Essentials guide explains the accrual rates and contribution tiers in detail.

Income Tax and Profit Extraction After Opt-Out

If you continue as a private practice after opting out, your income structure changes. You lose guaranteed UDA income and replace it with variable private fee income. This affects your tax planning in several ways:

Profit volatility: Private practice income can fluctuate month-to-month. You may need to budget for lower income in the first 12-24 months while building the patient list.
Profit extraction: If you operate through a limited company, you can extract profits via salary, dividends, or pension contributions. The dividend allowance for 2025/26 is £500. Dividend tax rates are 8.75% (basic rate), 33.75% (higher rate), and 39.35% (additional rate).
Employer NI: If you employ staff, employer NI is 15% on earnings above £5,000 per year. The Employment Allowance of £10,500 can reduce this if you are eligible.
Capital allowances: If you invest in new equipment for the private practice (chairs, X-ray units, autoclaves), the Annual Investment Allowance of £1,000,000 gives 100% tax relief in the year of purchase.

For a principal who was earning £150,000 from NHS work and now earns £120,000 from private work, the tax position changes. The higher-rate tax band starts at £50,270. Personal allowance is tapered above £100,000 and fully removed at £125,140. Careful profit extraction planning is essential to avoid paying 60%+ marginal rates on income between £100,000 and £125,140.

Contract Handback vs Sale: Which Route Is Better?

There are two main routes for exiting an NHS contract:

Contract handback: You notify NHS England that you are terminating the contract. The contract is extinguished. You cannot sell it. You may continue as a private practice or close the business.
Practice sale with contract transfer: You sell the practice as a going concern, and the buyer takes over the NHS contract. This preserves the goodwill value and triggers a capital gain (with reliefs available).

From a tax perspective, the sale route is almost always better. It crystallises a gain that can be relieved via BADR or incorporation relief. The handback route destroys goodwill value without any tax relief.

However, the sale route requires a buyer. In some areas, NHS contracts are hard to sell because UDA values are low or the patient list is declining. If you cannot find a buyer, handback may be the only option. In that case, you should plan the transition carefully to minimise the financial impact.

Practical Steps Before Opting Out

Before you hand back your NHS contract, take these steps:

Get a practice valuation: Understand what your practice is worth as an NHS-going-concern vs a private-only business. The practice valuation team can provide a detailed analysis.
Model the tax impact: Calculate the CGT, VAT, and pension consequences of each route. Use the practice valuation calculator to estimate the goodwill value.
Review your pension position: If you are close to retirement, the loss of NHS pension accrual may outweigh the benefits of going private.
Check your Performers' List status: If you continue any NHS work (e.g., as a locum), you must remain on the Performers' List.
Consult a dental-specialist accountant: The rules are complex and fact-specific. A generalist accountant may miss key reliefs or obligations.

Final Thoughts

Opting out of an NHS dental contract is a significant financial decision. The tax implications depend on whether you sell the practice, hand back the contract, or continue as a private practice. Goodwill, CGT, VAT, and pension considerations all interact. There is no one-size-fits-all answer.

The best approach is to plan the exit 12-24 months in advance. This gives you time to find a buyer, model the tax outcomes, and structure the transaction to minimise tax. A dental-specialist accountant can help you navigate the process and avoid costly mistakes.

If you are considering an NHS contract opt-out, speak to the team at Dental Finance Partners. We work with principals, associates, and locums across the UK. Contact us for a confidential discussion about your options.

Frequently asked questions

Can I sell my NHS dental contract to another dentist?: No. NHS dental contracts are not saleable assets. They are personal to the performer and the practice. When you opt out, the contract is extinguished. You cannot transfer it to another dentist for payment. The only way to realise value from the contract is to sell the practice as a going concern, with the buyer taking over the contract via a novation or assignment process approved by NHS England. If you hand back the contract without a sale, the goodwill value tied to the NHS work is lost.
Do I pay capital gains tax if I opt out and go private?: Not directly on the opt-out itself. Opting out does not trigger a disposal for CGT purposes because the contract is not a chargeable asset. However, if you later sell the practice as a private-only business, the gain on the sale of goodwill and other assets is subject to CGT. The gain will be lower than if the NHS contract were still in place, because the goodwill value is reduced. Business Asset Disposal Relief (14% for 2025/26, rising to 18% from April 2026) may apply if you meet the conditions.
What happens to my NHS pension if I opt out of the contract?: Opting out of the NHS contract does not automatically end your NHS Pension Scheme membership. You can continue to contribute if you still perform NHS work (e.g., as a locum or associate). If you cease all NHS work, you stop accruing benefits in the scheme. Your existing benefits are preserved and will be paid at retirement. If you are within 10 years of retirement, the loss of future accrual can be significant. You should model the pension impact before opting out.
Is it better to hand back the contract or sell the practice?: From a tax perspective, selling the practice as a going concern with the contract transferring to the buyer is almost always better. It preserves goodwill value and allows you to claim CGT reliefs like BADR. Handing back the contract destroys goodwill value without any tax relief. However, if you cannot find a buyer (e.g., because UDA values are low or the patient list is declining), handback may be the only option. In that case, plan the transition carefully to minimise financial impact.

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