Why a General Accountant May Not Be Enough for a Dental Practice
Dentists operate under a tax and regulatory framework that is genuinely different from most other small businesses. Mixed VAT on private and NHS work, the choice between associate and principal status, and the specific rules around practice incorporation all create traps for the unwary. A general accountant who handles a dozen high street shops and a building contractor may not know the dental sector's nuances. That is where specialist accountants for dentists come in.
The General Dental Council (GDC) sets the professional standards, and HMRC applies specific rules to dental income that do not apply to most other professions [1]. The ICAEW itself publishes technical guidance for dentists, recognising the sector as a distinct area of practice [2]. If your accountant is not familiar with that guidance, you are taking a risk.
NASDAL (the National Association of Specialist Dental Accountants and Lawyers) exists precisely because dental accounting is a niche. NASDAL accountants are familiar with the issues affecting dentists, whether principals, partnerships, companies or associates [3]. They understand the constraints within which you work and can offer advice on a range of issues related to dental business [3].
The VAT Problem: Exempt, Standard-Rated and Mixed Supplies
VAT is the single most common area where dentists overpay or underpay tax. The rules are not intuitive.
Income from services to protect, maintain and restore oral health is exempt from VAT [4]. That covers most NHS work and many private treatments. But VAT is payable on income from cosmetic services, dental products and activities such as report writing and lecturing [4]. If your practice does both exempt and standard-rated work, you have a partial exemption problem.
You must register for VAT if your income from non-exempt services reaches the current threshold of £90,000 [4]. That threshold applies to the standard-rated element only, not your total turnover. A practice turning over £200,000 but with only £40,000 of cosmetic work may not need to register. A practice turning over £95,000 with £50,000 of cosmetic work must register immediately.
Getting this wrong means either paying VAT you do not owe or missing the registration deadline and facing penalties. A specialist accountant for dentists will calculate the partial exemption position correctly and advise on the Flat Rate Scheme if it suits your practice mix.
Associate vs Principal: Two Completely Different Tax Positions
Newly qualified dentists often start as associates. The first year as an associate dentist in practice is not easy. You must start paying back your student loan, submit your first tax return and decide what kind of business structure will suit you [5].
Associates are typically treated as self-employed for tax purposes, but HMRC has challenged this status in recent years. If your working arrangement looks like employment, HMRC may reclassify you and demand employer NI and PAYE. Specialist accountants for dentists know the contract terms and working practices that keep you on the right side of HMRC's tests.
Principals, by contrast, own the practice or a share of it. Their tax position involves partnership returns, capital allowances on surgery equipment, and potentially incorporation. The 2025 edition of the Deloitte Roadmap includes a new section on Professional Practice Structures, discussing industry-specific considerations related to professional practice structures for physicians, dentists and accountants [6]. That reflects how seriously the tax world treats dental practice structures.
Practice Structure: Sole Trader, Partnership or Limited Company?
Most dental practices have historically operated as partnerships or sole traders. That is changing. More principals are incorporating, driven by the 19% to 25% corporation tax rates versus 40% to 45% income tax on partnership profits.
But incorporation is not straightforward for dentists. The practice's goodwill, the property (if owned personally), and the ongoing NHS contract all need separate valuation and transfer. A poorly structured incorporation can trigger an immediate capital gains tax bill and lose the benefit of Business Asset Disposal Relief.
Specialist accountants for dentists will model the numbers before you incorporate. They will calculate the corporation tax saving, the dividend tax cost, and the CGT on the goodwill transfer. They will also check whether your NHS contract allows incorporation without renegotiation.
Rob Walsh, a specialist dental accountant from Clear Vision near Bath, describes how his firm approached the niche: "The first thing we did was to work with an existing dentist client very intensively to understand the language, to put in all the necessary systems, to have monthly board meetings and to do the management accounts" [7]. That depth of sector knowledge is what you need before restructuring your practice.
Making Tax Digital and the 2026 Deadline
HMRC introduced Making Tax Digital for VAT in 2019 [4]. Most VAT-registered businesses now submit quarterly returns digitally using compatible software. But the bigger change is coming.
From 6 April 2026, Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) becomes mandatory for self-employed individuals and landlords with qualifying income over £50,000 [4]. That includes most dental principals and many associates. From April 2027, the threshold drops to £30,000. From April 2028, it drops to £20,000.
If you are still using spreadsheets and a manual year-end file, you need to move to compatible software. Xero, FreeAgent and QuickBooks all integrate with MTD-compliant bridging software. Your accountant should have already discussed this with you. If they have not, that is a red flag.
Capital Allowances and Surgery Equipment
Dental surgeries are capital-intensive. Chairs, X-ray machines, sterilisation equipment, computers and practice management software all qualify for capital allowances. The Annual Investment Allowance (AIA) gives 100% relief on most plant and machinery up to £1,000,000 per year. Full Expensing is also available for limited companies on most main-rate assets.
But the rules on dental chairs and surgery fit-out are not always straightforward. Some items count as fixtures (qualifying for capital allowances) and some as repairs (revenue deductible). A specialist accountant for dentists will know the difference and ensure you claim everything you are entitled to.
Structures and Buildings Allowance (SBA) gives 3% per year on qualifying new-build or renovation costs. If you are extending or refurbishing your practice, that relief adds up over time.
Associate Start-Up Support and the BDA Benevolent Fund
Ross Brooke Dental, a specialist dental accountancy firm, offers a practical example of sector-specific support. In 2023, they provided five young associate dentists with a year of accountancy and business advice at a heavily discounted rate. Normally worth £600 plus VAT, they charged just £200 per dentist and donated the fee to the BDA Benevolent Fund [5].
Nathan Poole, who has worked with dentists for more than 15 years, said: "The first year as an associate dentist in practice isn't easy. You must start paying back your student loan, submit your first tax return and decide what kind of business structure will suit you" [5]. That is exactly the kind of practical, sector-aware advice a specialist accountant provides.
RBD founder Linda Giles added: "In nearly 30 years as a specialist dental accountant, all the clients who started out with me stayed with me" [5]. Long-term relationships matter in this sector because your tax position changes as your career progresses from associate to principal to practice owner.
What to Look for in a Specialist Dental Accountant
Not every firm that claims to be a specialist actually is. Here are the markers to check.
- NASDAL membership. The National Association of Specialist Dental Accountants and Lawyers is the recognised body. If your accountant is not a member, ask why.
- ICAEW or ACCA qualification. Both bodies publish dental-specific guidance. Your accountant should be able to reference it.
- Experience with mixed VAT. Ask them to explain partial exemption for a dental practice. If they cannot, move on.
- Knowledge of practice structures. They should be able to compare partnership, limited company and sole trader for your specific situation.
- MTD readiness. They should have already moved their dental clients to compatible software.
As ICAEW qualified accountants, our team at Holloway Davies works with dental practices across the UK. We understand the sector's specific tax rules and business challenges. You can read more about our full range of services on our services page or get in touch through our contact page to discuss your practice.
For a broader overview of how we approach business tax, our fundamentals page covers the core principles that apply across sectors, including the dental-specific rules we have discussed here.
Final Thoughts
Dental accounting is a genuine specialism. The VAT rules alone create complexity that most general accountants never encounter. The choice between associate and principal status, the decision to incorporate, and the capital allowances on surgery equipment all require sector-specific knowledge.
If your current accountant cannot answer the questions in this article, it is worth having a conversation with someone who can. The cost of getting it wrong is far higher than the cost of switching to a specialist.
Sources
- gdc-uk.org: [PDF] Annual report and accounts 2024 - General Dental Council
- icaew.com: Dentists - ICAEW.com
- nasdal.org.uk: Dental Accounting | nasdal.org.uk
- bda.org: Tax guidance for dentists: understanding your obligations
- nature.com: RBD initiative to support newly qualified dentists and the BDA...
- dart.deloitte.com: Appendix J, Roadmap Updates for 2025 | DART, Deloitte...
- accaglobal.com: Specialist v generalist, should you niche or not? - ACCA Global