Almost everything a dental practice does is exempt from VAT — and that is a cost, not a saving. Exempt is not the same as zero-rated, and the difference is the whole story: an exempt business charges no VAT on its fees, but it also cannot reclaim the VAT it pays on lab bills, equipment, materials and refits. The 20% is still there. It just sits on your side of the invoice, permanently.

The short answer

No, there is no VAT on dental treatment — provided the treatment is genuinely dental care and the person providing it is registered. That covers examinations, fillings, extractions, endodontics, periodontal treatment, hygiene appointments and the rest of ordinary practice. Private and NHS alike: the exemption follows the nature of the service and the registration of the professional, not who is paying.

The exemption sits in Group 7 of Schedule 9 to the VAT Act 1994. HMRC’s own manual describes what it covers as “health services where the principal purpose is to protect, maintain or restore the health of the person concerned and dental prostheses”, supplied by people on the dentists’ register or the dental care professionals register under section 45 of the Dentists Act 1984.

Two conditions are doing the work there, and both must hold: the purpose must be health, and the person must be registered in a discipline that covers what they are doing. Miss either and the supply is standard-rated.

Why exemption is worse than it sounds

This is the part that surprises owners who have not run a VAT-registered business before, and it is the reason a tax question keeps turning up in stories that look like clinical ones.

There are three positions a supply can be in, and only two of them are good:

Zero-rated and exempt look identical to the patient: neither adds anything to the bill. They are opposites from the practice’s side. A zero-rated business recovers its input VAT; an exempt one absorbs it. Every VAT-inclusive cost a practice incurs — the lab invoice, the chair, the imaging, the consumables, the fit-out — is 20% more expensive in real terms than it would be for a business that could reclaim.

Exempt and zero-rated look the same to the patient and are opposites to the practice. One recovers the VAT on its costs. The other pays it and keeps it.

That is why a change in how a lab treats an appliance lands directly on practice margin, with no mechanism to pass it back. Our report on the Upper Tribunal ruling on clear aligners covers the live example: the exemption on your clinical fee is untouched, but if the appliance itself becomes standard-rated on the way in, an exempt practice has nowhere to put the extra 20%. NHS orthodontic contracts are the sharpest version of that, because a fixed contract value cannot absorb a new input cost at all.

Where the exemption stops

Three edges are worth knowing, because they are where practices drift into taxable supplies without noticing.

Purely cosmetic work. HMRC’s position is that “cosmetic services are exempt where they’re undertaken as an element of a health care treatment programme”, and that “where services are undertaken purely for cosmetic reasons, they will be standard-rated”. For dentistry specifically it says cosmetic services “will need to be considered on a case by case basis and will be exempt only where they’re supplied as an element of oral health treatment.” The test is the clinical purpose, evidenced — not the treatment’s name, and not what the patient’s motivation happened to be.

Products, as opposed to care. The prostheses exemption is broad — dentures, fixed and removable bridges, crowns, inlays, obturators, splints, dental palates, individual artificial teeth, and gold supplied as part of them — but it is an exemption for dental goods “for the dental benefit of the patient”, supplied by a dentist or a dental technician. It does not reach retail. HMRC is explicit that it does not extend to “toothpaste, toothbrushes, dental floss etc, nor to display, demonstration, or wholesale supplies”. A practice with a shop shelf is making standard-rated supplies, however small.

Equipment and materials as such. High-speed grinders, other dental machinery and acrylic dust are standard-rated. The exemption attaches to patient care and to the prosthesis, not to the kit that makes it.

One asymmetry worth knowing: dental technicians

The principal-purpose test applies to registrants generally — but not identically. HMRC’s manual states that all health services supplied by dental technicians are exempt, regardless of principal purpose. Everyone else has to satisfy the purpose test; technicians do not.

That is a narrow point with practical consequences for how lab and practice work is structured, and it is one of several reasons the VAT position of a supply can turn on who made it rather than what it is. It is also why the aligner ruling was fought over the meaning of the word “prosthesis” rather than over whether orthodontics is healthcare.

The threshold, and the trap behind it

Exempt supplies do not count towards the VAT registration threshold. Standard-rated ones do. So a practice can run for years with no VAT obligation at all, and then acquire one by degrees — a growing purely-cosmetic list, a retail shelf, teaching or consultancy income.

The thresholds, both unchanged since 1 April 2024, are £90,000 to register and £88,000 to deregister. Registration bites on either of two tests: taxable turnover exceeding £90,000 over the last rolling 12 months, or an expectation of exceeding it within the next 30 days. Note that the rolling test is not a financial-year test — it can be crossed in any month.

A practice that crosses it does not simply start charging VAT. It becomes partly exempt: making both taxable and exempt supplies, and therefore able to recover only the input VAT attributable to the taxable side. There is a de minimis relief — broadly, otherwise-irrecoverable input tax can still be deducted where it averages no more than £625 a month and is no more than half the total input tax incurred — but past that point the calculation becomes a recurring exercise rather than a one-off decision.

This is the point at which the honest advice is to stop reading articles. Partial exemption is genuinely technical, the method used has to suit the business, and the cost of getting it wrong compounds quietly across quarters. What is worth taking from an explainer is the trigger: if your standard-rated income is growing, that is a VAT question, not just a revenue one, and it wants an accountant’s eye before it crosses £90,000 rather than after.

What this means for your practice

Four things follow from the structure, none of which require a tax adviser to notice:

• Input VAT is a real, permanent cost line. When comparing lab quotes, equipment finance or a refit, an exempt practice should be comparing VAT-inclusive figures throughout — because that is what it actually pays. A quote presented ex-VAT understates your cost by a fifth.
• A supplier’s VAT treatment is your problem. You cannot reclaim it and you usually cannot pass it to the patient without a fee change. That is why a lab-side reclassification is worth knowing about early, and why asking a supplier in writing how it treats a given item is a reasonable commercial question rather than an accounting one.
• Watch the non-clinical income. Retail, purely cosmetic work and teaching are the usual routes into taxable supplies. Renting out a surgery or room is usually not one of them: HMRC treats a licence to occupy land as exempt unless the owner has opted to tax the property, although services charged separately on top can be standard-rated. None of them feels like a tax event at the time.
• Keep the clinical record clinical. Where exemption turns on whether something formed part of an oral health treatment programme, the contemporaneous clinical justification is the evidence. That is a records discipline, and it is the same discipline that serves you in a complaint or an inspection — see our complete guide to dental practice compliance.

One boundary worth stating plainly, because it is adjacent to a live commercial question: charges between dentists for shared facilities are treated as exempt where they are predominantly medical in nature. How an associate arrangement is structured, and what the practice charges for, is fact-specific and sits alongside the employment-status question rather than replacing it — our explainer on why an associate dentist has no salary at all covers the licence-fee structure that sits underneath it.

This page explains the structure. It is not tax advice, and the areas most likely to affect you — partial exemption, capital purchases, and anything to do with how associate arrangements are papered — are exactly the ones where the answer depends on facts a general explainer cannot see. Take the structure here, and take the specifics to your accountant.