Dental Practice Accounts: What Your Year-End Tells You

Most dental practice owners get a set of year-end accounts, glance at the profit figure, sign where the accountant has flagged, and file it away. That is a wasted document.

A good set of dental practice accounts is a management tool, not just a compliance return. Read properly, it tells you whether your associate costs are sensible, whether your lab spend has crept, how your margins compare with similar practices, and where your next pound of profit is hiding.

This guide is for principals and incorporated practice owners who want their year-end to earn its keep. We'll cover what the numbers should reveal, the benchmarks that matter, the dental-specific items that catch people out (associate status, NHS superannuation, VAT on cosmetic work), and the 2026 filing rules you need on your radar. All figures are dated to their tax year and cited to gov.uk, NHSBSA or the GDC.

What should a set of dental practice accounts actually tell you? {#what-should-accounts-tell-you}

A useful set of dental practice accounts should answer three questions in plain terms: how much did the practice earn, where did the money go, and how does that compare with both last year and similar practices. If your accounts only give you the first answer, they are doing a third of the job.

At minimum, your year-end should break income into NHS and private (and ideally plan income separately), show associate and hygienist costs as a clear percentage of fee income, isolate lab and materials, and give you a profit margin you can actually compare year on year.

The point of benchmarking is context. A 30% net margin means nothing on its own. Set against your own prior year and against a typical practice, it starts to tell a story.

What income split should you see?

Split fee income into NHS contract income, private fee income, and plan or capitation income. These behave differently. NHS income is contracted and (for the principal) carries the superannuation mechanics we cover below. Private income flexes with diary utilisation and pricing. Seeing them blended together hides the trend that matters most: whether your private book is growing faster than your NHS reliance.

What cost detail should you see?

You want associate and hygienist fees, lab fees, dental materials, staff wages, premises, and equipment shown distinctly, each expressed as a percentage of fee income. Percentages, not just pounds, are what let you benchmark. A £40,000 lab bill is fine on £400,000 of relevant income and alarming on £150,000.

Which benchmarks matter for a dental practice? {#which-benchmarks}

Benchmarking is comparing your key ratios against your own history and against typical figures for a practice of your type, so an unusual number prompts a question rather than slipping past unnoticed.

There is no official gov.uk table of "correct" dental ratios, so we won't invent one. Instead, treat these as the lines to track year on year and to discuss with your accountant, expressed as a percentage of relevant fee income:

The discipline is simple: look at each line this year versus last year. A line that has moved two or three percentage points without an obvious reason is your accountant's prompt to dig in. That conversation is where dental practice benchmarking pays for itself.

Should you benchmark per surgery or per dentist day?

Yes, where you can. Income per surgery and income per clinical day strip out the noise of a practice simply being bigger. A practice can grow turnover while quietly becoming less efficient per chair. Per-surgery and per-day figures catch that early.

How do you read the cost lines a dentist should care about? {#cost-lines}

Book a free Tax Health Check →

Three cost areas drive most of the variance in dental accounts: clinical staffing (associates and hygienists), lab and materials, and premises and equipment.

Associate fees are usually the largest single cost. The right question is not "are they high" but "are they proportionate to the income those clinicians generated". If associate fees as a share of associate-generated income are drifting up, either the percentage split has changed or the mix of work has shifted toward lower-margin treatment.

Lab and materials should move broadly in line with the type of work you do. A swing toward implants, crowns or clear aligners pushes lab spend up, which is fine if the fee income moved with it. The warning sign is lab cost rising while the relevant fee income did not.

Equipment is where capital allowances come in. For unincorporated practices and companies alike, the Annual Investment Allowance gives 100% tax relief on up to £1,000,000 of qualifying plant and machinery in the year of purchase, the current limit since 1 January 2019 (gov.uk). A new chair, CBCT scanner or surgery fit-out usually qualifies, so the timing of equipment purchases around your year-end genuinely affects your tax bill.

How is associate spend treated after the ESM4030 withdrawal? {#associate-status}

This is the dental-specific change that most affects how accounts and contracts are read. HMRC's long-standing concession at ESM4030, which treated associates working under British Dental Association or Dental Practitioners Association approved agreements as self-employed almost automatically, was withdrawn with effect from 6 April 2023 (gov.uk ESM4030).

Since then, an associate's self-employed status is not assumed. It rests on the ordinary employment-status tests in the Employment Status Manual and HMRC's Check Employment Status for Tax (CEST) tool, the same as any other engagement (gov.uk ESM4030).

For your accounts, the practical effect is this. If an associate is genuinely self-employed, their fees sit as a cost in your practice accounts and they handle their own tax and National Insurance. If the working arrangement looks like employment, you could face PAYE and employer National Insurance exposure. Employer (secondary) Class 1 NIC is 15% for 2025/26 on earnings above the Secondary Threshold of £5,000 a year (gov.uk), which is a material cost if a status challenge succeeds.

The takeaway: your year-end is the moment to confirm that the substance of each associate arrangement still supports self-employment, because the automatic protection is gone.

How does NHS superannuation show up in your accounts? {#nhs-superannuation}

For NHS practices, superannuation is one of the trickiest reconciliations in the accounts. The NHS Pension Scheme contributions for a performer or provider are confirmed through the Annual Reconciliation Report (ARR) process on NHSBSA's Compass system, and the resulting SD86C (the Annual Pensionable Earnings and Contribution Statement) follows after that.

The ARR window runs from 1 April to 30 June each year, when you confirm your net pensionable earnings figures. The SD86C, which your accountant needs to finalise the accounts and your tax position, becomes available on Compass after the reconciliation completes, typically from around the end of July onward (NHSBSA ARR FAQ, NHSBSA SD86C FAQ).

The employee element of NHS pension contributions paid by a self-employed principal is dealt with as a member contribution for pension tax relief purposes; HMRC's guidance routes the detail through the Pensions Tax Manual (gov.uk BIM54020). Get the SD86C wrong or omit it and both your accounts and your Self Assessment can be misstated, so it is worth waiting for the statement rather than estimating.

One structural point worth flagging: associates and locums who work through a limited company are excluded from the NHS Pension Scheme, because the scheme requires the individual to be engaged personally. Incorporating can therefore mean giving up NHS pension accrual, which is a genuine trade-off rather than a pure tax win.

What about the annual allowance and McCloud?

High-earning dentists frequently breach the pension annual allowance. The standard annual allowance is £60,000 for 2025/26 (gov.uk). It can taper down for high earners: where your threshold income exceeds £200,000 and your adjusted income exceeds £260,000, the allowance reduces by £1 for every £2 of adjusted income over £260,000, down to a minimum of £10,000 (gov.uk).

If you exceed your allowance and want the scheme to pay the charge, the standard voluntary Scheme Pays election deadline is 31 July following the relevant Self Assessment deadline. Separately, the McCloud remedy rolls service from 1 April 2015 to 31 March 2022 back into the 1995/2008 scheme, and HMRC operates a digital service to recalculate any annual allowance charges affected, fed by the remediable pension savings statements NHSBSA issues (NHSBSA McCloud). This is specialist territory; the accounts are where it surfaces, but the calculation belongs with your adviser.

When is dental work VAT-exempt and when is it standard-rated? {#vat-dental}

Most dental practices never register for VAT, because the core supply is exempt. But the line is not "all dentistry is exempt", and getting it wrong on a growing cosmetic book is a real risk.

Dental services are exempt from VAT where two conditions are met: the service is supplied by a registered dental professional (registered with the GDC), and the primary purpose is the protection, maintenance or restoration of health (gov.uk VAT Notice 701/57).

Where treatment is undertaken purely for cosmetic reasons, it is standard-rated. Cosmetic work is exempt only where it is supplied as an element of oral health treatment by a registered professional, as part of a dental care treatment programme (gov.uk VAT Notice 701/57).

The benchmark to watch is your standard-rated income, principally purely-cosmetic procedures and any retail or product sales. If those taxable supplies approach the VAT registration threshold of £90,000 (the current threshold since 1 April 2024), you may need to register (gov.uk). A practice that has scaled facial aesthetics or whitening can drift toward that line without anyone watching the right number, which is exactly the kind of thing your year-end should flag.

What are the 2026 filing rules and accounting standards? {#filing-rules-2026}

If your practice trades through a limited company, two things govern how the accounts are prepared and when they are filed.

Which accounting standard applies?

Most incorporated dental practices report under UK GAAP as either a micro-entity or a small company. The company size thresholds increased for financial years beginning on or after 6 April 2025 (Companies House guidance):

You qualify for a category by meeting any two of its three limits. A micro-entity that chooses the micro regime prepares accounts under FRS 105; a small company prepares under FRS 102 (typically using the reduced disclosures of Section 1A). FRS 105 is simpler but, for example, ignores deferred tax, so the choice has real effects on the figures you and your bank see (ICAEW). Whether you should sit at micro or small level is a conversation worth having, because more detailed accounts can be easier to benchmark and to present to a lender.

When must a company file?

For a private company, accounts are due at Companies House within 9 months of the financial year end, and your first accounts are due 21 months after the date you registered (gov.uk). Corporation Tax is payable 9 months and 1 day after the accounting period ends, and the Company Tax Return is due 12 months after the period ends (gov.uk). The Corporation Tax small profits rate is 19% on profits up to £50,000 and the main rate is 25% on profits over £250,000 for Financial Year 2025, with marginal relief in between (gov.uk).

What about Making Tax Digital for unincorporated principals and associates?

If you are a sole trader principal or self-employed associate, Making Tax Digital for Income Tax begins on 6 April 2026 for those with qualifying gross income over £50,000 (based on the 2024/25 return). It then extends to gross income over £30,000 from 6 April 2027 and over £20,000 from 6 April 2028 (gov.uk). The "gross income" test bites on turnover, not profit, so many associates will be in scope sooner than they expect. Solid digital bookkeeping now is the painless way in.

Illustrative example: reading a practice's year-end {#worked-example}

Illustrative example. Riverside Dental Ltd is a small incorporated mixed practice. The figures below are made up to show how benchmarking works; they are not a real client.

Net margin has dropped from 20% to 16%, a fall of four percentage points. The benchmarking points straight at two lines. Lab fees rose from 6% to 8% of fee income, and associate costs rose from 34% to 36%.

The arithmetic checks out: 36 + 8 + 7 + 20 + 13 = 84% of costs, leaving 16% net. The question the accounts raise is whether the extra lab and associate cost was matched by extra fee income from higher-value work, or whether margin simply leaked. That is the conversation a good year-end starts, and the reason the percentages matter more than the pounds.

Your dental year-end deadline calendar {#deadline-calendar}

A practitioner's eye view of the dates that cluster around a dental year-end. Confirm your own company's dates, which depend on your accounting reference date.

The GDC Annual Retention Fee for 2026 is £698 for dentists and £108 for dental care professionals (GDC). It is an allowable business expense for a practising dentist, so it belongs in your accounts.

If you'd like a year-end that actually reads like a management report, our team works with practice principals and associates day to day. You can see how we support dentists, how we prepare statutory accounts, and how clean bookkeeping makes benchmarking possible in the first place. Book a call and we'll talk through what your numbers are telling you.

Frequently asked questions {#faqs}

What should dental practice accounts include beyond the profit figure?

They should split income into NHS, private and plan income, show associate, lab, materials, wages and premises costs as a percentage of fee income, and give a net profit margin you can compare year on year. That is what turns a compliance document into a benchmarking tool.

Is my associate definitely self-employed?

Not automatically. The ESM4030 concession that treated associates on approved agreements as self-employed was withdrawn from 6 April 2023. Status now depends on the ordinary employment-status tests and HMRC's CEST tool, so the substance of each arrangement needs checking.

Do dental practices have to register for VAT?

Usually not, because dentistry supplied by a GDC-registered professional for the protection, maintenance or restoration of health is VAT-exempt. But purely-cosmetic work is standard-rated, and if those taxable supplies approach the £90,000 registration threshold (current since 1 April 2024) you may need to register.

When will Making Tax Digital affect dentists?

MTD for Income Tax starts on 6 April 2026 for sole traders and landlords with qualifying gross income over £50,000, then £30,000 from April 2027 and £20,000 from April 2028. The test is on gross income, so many associates fall in scope sooner than expected.

Why does my accountant wait for the SD86C?

The SD86C confirms your NHS pensionable earnings and contributions, and it is only produced after the Annual Reconciliation Report completes on Compass, typically from around the end of July. Using an estimate instead can misstate both your accounts and your Self Assessment.

What are the company filing deadlines for an incorporated practice?

Accounts are due at Companies House within 9 months of the year end (21 months after incorporation for first accounts). Corporation Tax is payable 9 months and 1 day after the period ends, and the Company Tax Return is due 12 months after it ends.