Dental practice owners selling after 6 April 2027 will be able to use Business Asset Disposal Relief (BADR) on a smaller slice of their gains. According to the government's published policy paper, the lifetime limit on qualifying gains will fall from £1 million to £500,000 per individual. The paper says gains within the limit are taxed at 18%. It also says legislation will be introduced in the Finance Bill 2026, so the change is not yet law.
What the policy paper says
The measure applies to qualifying disposals made on or after 6 April 2027. The paper says the limit must take account of relief claimed on qualifying gains in the past, so an owner who has already used BADR will have less headroom than the headline figure suggests.
The government's stated aim is to target the relief at owners with smaller gains. It estimates that about 51,000 people claim BADR. Of those, 75% will be unaffected and about 13,000 will be hit because some gains that previously qualified will not. The estimate covers all businesses, not dentistry specifically, so it says nothing direct about how many dental sellers will be affected.
The paper projects the Exchequer gain at £5 million in 2026 to 2027, rising to £305 million by 2031 to 2032. It describes the figures as certified by the Office for Budget Responsibility. It also says people aged 45 to 74 and men are over-represented among those affected, which is a plausible description of the typical practice-owning cohort.
The arithmetic
The policy paper does not state the rate that applies above the limit. As GDPUK reports, it is 24%. On those reported rates, a seller with a £1m qualifying gain would pay an extra £30,000 after April 2027, because £500,000 of gain moves from 18% to 24%. GDPUK also quotes Luke Moore, co-founder of Dental Elite, saying a married couple who each had a £1m gain would pay £60,000 more between them.
Our own reading of those figures is that the extra cost is capped per person. A seller whose qualifying gain is well above £1m loses the same £500,000 of relief as one whose gain is exactly £1m. On the reported rates the maximum additional tax is £30,000 per individual. That is a real sum, but it is bounded, and it is a small share of the proceeds of a large sale.
Reaction from advisers
GDPUK quotes Iain Stevenson, head of dental at Wesleyan, who says the cut 'risks discouraging entrepreneurship' and could reduce the reward for years spent building a practice. Moore points to offsetting measures: a new 'Founders Relief' allowance on lifetime gains of £10m, which he suggests could help some dental groups, and a continued Annual Investment Allowance. These are GDPUK's reports of adviser comment, and the policy paper supplied for this story does not cover them. Their eligibility rules would need to be read in the primary documents before anyone relies on them.
Timing and the forestalling rules
The obvious response is to complete a sale before April 2027, but the paper anticipates it. It sets out anti-forestalling rules for contracts that are unconditional but uncompleted before 6 April 2027. The £500,000 cap will still apply to those gains unless the parties can show that they did not enter the contract with a purpose of obtaining a tax advantage from the timing rule in section 28 of the Taxation of Chargeable Gains Act 1992. Where the parties are connected, they must show the contract was made for wholly commercial reasons. Where one of these exceptions is relied on and the gain exceeds £100,000, a statement must also be made.
A separate rule covers share reorganisations. If a shareholder elects to disapply the no-disposal treatment under section 169Q so as to claim BADR, an election made on or after 6 April 2027 will be treated as a disposal at the time of the election, and the £500,000 limit will apply.
In practice, exchanging early to lock in the old limit may not work if tax is a main reason for the timing. Anyone planning a pre-deadline contract needs specialist advice before signing.
- Work out per-owner headroom first. The limit is per individual and reduced by earlier claims, so each owner's position will differ. Ask your accountant for each shareholder's remaining lifetime allowance and expected qualifying gain. As a general rule, BADR also depends on meeting qualifying conditions that the policy paper summary does not set out, so do not assume the whole gain qualifies.
- Look at who is exposed. Our reading is that single-site sales with modest gains are least likely to breach £500,000 per owner. Multi-site owners, larger practices and exits to groups look most exposed. The government's 75% figure supports this at the national level but cannot be applied to dentistry without sector data.
- Treat the deadline as a planning input, not a trigger. A sale rushed to save up to £30,000 per person can cost more in a weaker price or a poorly negotiated deal than it saves. Buyers also know a deadline exists.
- Keep tax out of patient communications. Patients do not need to hear about a practice's tax position. If a sale proceeds, any continuity messaging must be accurate and must not promise that named clinicians will stay unless that is certain, in line with GDC advertising standards and the ASA/CAP codes. It must not pressure patients over treatment timing. Advisers marketing 'beat the deadline' services to owners should avoid presenting a measure not yet enacted as settled law.
The counter-view
The loudest warnings should be weighed against who is making them. Commentators from financial services and the dental advisory market have a commercial interest in sellers thinking urgently about tax. That does not make their sums wrong, but the policy paper's own numbers suggest most BADR claimants will notice nothing. For many practice owners the sensible response is to model the effect, not to bring a sale forward. Stevenson's point that reduced rewards could dampen investment is a legitimate policy argument. The paper, however, expects no significant macroeconomic effect and says the aim is to focus the tax system on start-up and scale-up phases. Which of those views proves right for dentistry will only be clear once there is data on who is affected.