Running a dental practice in the UK involves a unique set of accounting challenges. Whether you are an NHS contractor, a purely private practice or a mix of both, the way income flows, how associates are paid and the VAT treatment of dental services all require careful handling.
Business structures for dentists
The structure you choose affects how you are taxed, your personal liability and your administrative burden.
| Structure | Common for | Tax treatment |
|---|---|---|
| Sole trader | Single-handed practices | Income Tax via Self Assessment |
| Partnership | Two or more principals sharing a practice | Each partner files Self Assessment on their share |
| Limited company | Larger or corporately owned practices | Corporation Tax on profits; directors pay via PAYE |
| Associate (self-employed) | Dentists working in another principal’s practice | Self Assessment as a sole trader |
Most high-street dental practices operate as sole trader or partnership structures. Corporate dental groups typically use limited companies. The critical distinction between a principal (who holds the NHS contract or owns the practice) and an associate (who is self-employed and works under a contract for services) has significant accounting implications.
NHS income and UDA payments
If you hold an NHS contract, your income is based on Units of Dental Activity (UDAs). The value of each UDA varies by contract and region, but the mechanism is the same everywhere.
How NHS payments work
- Your Local Area Team (part of NHS England) pays you monthly based on your contracted UDA target
- Payments are made in twelfths of the annual contract value
- At year end, an end-of-year reconciliation compares delivered UDAs against the target
- If you under-deliver, NHSE claws back a proportion of the payments
- If you over-deliver, you do not automatically receive more (the contract is capped)
Recording NHS income
Record each monthly payment from the NHS as income when received. At year end, account for any clawback as a reduction in income. If a clawback straddles your accounting year end, you need to make a provision in your accounts for the expected repayment.
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Private income
Private income comes from treatments not covered by the NHS, including cosmetic dentistry, implants, orthodontics and whitening. Private income is typically higher-margin but less predictable than NHS income.
| Income stream | Typical recording method |
|---|---|
| NHS contract payments | Monthly, with year-end reconciliation |
| Private fee-per-item | When the treatment is completed and invoiced |
| Dental plan payments (Denplan, Practice Plan) | Monthly capitation, allocated across the period |
| Lab fees recharged to patients | Record both the income and the corresponding lab cost |
If you operate a capitation plan (where patients pay a monthly fee for ongoing care), recognise the income over the period it covers rather than when the cash arrives.
Associate dentist pay
Associate dentists are almost always self-employed. They work under a contract that specifies the percentage split of NHS UDA income and/or private fees.
Typical arrangements
- NHS work – the associate receives a percentage (commonly 45-50%) of the UDA value for treatments they deliver
- Private work – the associate receives a percentage (commonly 50%) of private fees they generate
- The practice retains the remainder to cover overheads (premises, staff, materials, equipment)
Tax treatment
Because associates are self-employed, the practice does not deduct PAYE or National Insurance from their payments. Associates file their own Self Assessment returns and are responsible for their own tax, NIC and pension contributions.
The practice should issue a monthly or quarterly statement showing gross fees generated, the percentage retained and the amount paid to the associate. Keep these records carefully – HMRC occasionally challenges the self-employed status of dental associates, though the 2018 case of Ralc Consulting Ltd v HMRC largely confirmed the traditional self-employed model.
VAT for dental practices
Most dental treatment is exempt from VAT under Group 7, Schedule 9 of the VAT Act 1994. This means you do not charge VAT on:
- All clinical dental treatment (NHS and private)
- Dental prosthetics (crowns, bridges, dentures) supplied as part of treatment
However, some supplies are subject to VAT at 20%:
| Supply | VAT status |
|---|---|
| Clinical dental treatment | Exempt |
| Tooth whitening (cosmetic, no clinical need) | Standard-rated (20%) |
| Sale of toothbrushes, mouthwash and retail products | Standard-rated (20%) |
| Rental of surgery space to associates (if you charge rent) | Potentially exempt (option to tax applies) |
| Dental laboratory services | Standard-rated (20%) |
The input VAT problem
Because most dental income is VAT-exempt (not zero-rated), you cannot recover input VAT on your purchases. This means the VAT you pay on equipment, materials, repairs and professional fees is a genuine cost to the business.
If you have a mix of exempt and taxable supplies, you may need to do a partial exemption calculation to work out how much input VAT you can reclaim. For most practices where taxable supplies are minimal, this recovery will be small.
Allowable expenses
Dental practices have sector-specific expenses beyond the usual business costs.
Clinical expenses
- Dental materials and consumables (composite, amalgam, impression materials, anaesthetics)
- Laboratory fees for crowns, bridges and dentures
- Disposable items (gloves, masks, suction tips, bibs)
- Decontamination and sterilisation supplies
Premises and equipment
- Rent or mortgage interest on the surgery premises
- Business rates (check eligibility for small business rates relief)
- Dental equipment (chairs, handpieces, X-ray units, compressors) – claim capital allowances
- Equipment maintenance and repairs
- Utilities (electricity, gas, water)
Professional costs
- GDC registration (the annual retention fee for dentists)
- Indemnity cover (dental defence organisations or commercial insurance)
- CQC registration fees
- CPD courses and conferences
- Professional subscriptions (BDA, specialist societies)
Staff costs
- Dental nurses, hygienists, therapists – salaries, employer NIC, pension contributions
- Receptionists and practice managers
- Locum costs when covering for holidays or sickness
Pension planning for dentists
NHS Pension Scheme
If you do NHS work, you (and your associates doing NHS work) are eligible for the NHS Pension Scheme. This is a defined benefit scheme and is generally considered one of the best pensions available. Contributions are tiered based on earnings.
The NHS Business Services Authority publishes the contribution tiers and the employer contribution rate each scheme year, and the tier boundaries move with pay awards. Associates’ contributions are based on the NHS income they generate.
Be aware of the annual allowance, including its taper for very high earners. The lifetime allowance was abolished from 6 April 2024, but transitional protections still apply. High-earning dentists with significant NHS pension accrual should review their position annually to avoid unexpected tax charges.
Private pension for non-NHS income
For income from private work, you need to make your own pension arrangements. A SIPP (Self-Invested Personal Pension) gives flexibility and control. Contributions reduce your taxable income, making this one of the most effective tax-planning tools available.
Superannuation and year-end returns
NHS dental practices must submit annual returns for superannuation purposes. These returns detail:
- Total NHS income generated by each performer (principal and associate)
- Pension contributions deducted
- Reconciliation with the contract value
Deadlines are strict and penalties apply for late submissions. Your accountant or practice manager needs to coordinate closely with the NHS BSA (Business Services Authority) to ensure figures match.
Record-keeping essentials
Beyond the standard HMRC requirements, dental practices should maintain:
- Day sheets or clinical software records showing treatments delivered, fees charged and payment method
- Associate statements with gross fees, percentage split and net payment
- Lab work log matching lab invoices to specific patients and treatments
- Stock records for high-value materials
- Equipment asset register for capital allowances claims
- CQC compliance records (not strictly accounting, but linked to operational costs)
Common accounting mistakes in dental practices
- Mixing NHS and private income without clear separation – makes profitability analysis and benchmarking impossible
- Not provisioning for UDA clawback – a surprise clawback distorts your accounts and cash flow
- Failing to track associate percentages accurately – errors compound monthly and create disputes
- Overlooking capital allowances on expensive equipment like digital X-ray units, CBCT scanners and CAD/CAM systems
- Not claiming all professional fees – GDC registration, indemnity cover and CPD are all deductible but frequently forgotten by associates on Self Assessment returns
- Ignoring pension annual allowance – high earners with both NHS pension and private pension contributions can breach the annual allowance and face a tax charge
Give your practice accounts that show where the profit comes from. Start the free trial or ask for accounting help.