NHS pension annual allowance for Harrow dentists: what actually triggers a tax charge

The NHS pension annual allowance is the single most common reason dentists come to us for a matched accountant. Not because the rules changed this year, but because they did change in 2023, and the knock-on effects are still being felt in the 2024/25 and 2025/26 tax years. If you are a Harrow dentist with an NHS pension and any private or limited-company income at all, read on.

What the annual allowance actually measures

The annual allowance is not how much you pay into a pension — it is how much your pension benefits grew in value over the pension input period. For NHS dentists, that growth is calculated using a formula called the pension input amount (PIA), which takes your opening and closing pension entitlement, revalues the opener for CPI, and multiplies the difference by 16 (plus any lump sum growth).

The practical consequence: you do not need to have saved anything in your own pocket to breach the allowance. A salary jump, a senior partnership change, or a CPI adjustment can push your PIA over the limit even if nothing else in your life changed.

The current allowance, and why Harrow dentists are still getting caught

The standard annual allowance is £60,000 (up from £40,000 before April 2023). The money-purchase annual allowance is £10,000. The tapered annual allowance still applies if your adjusted income exceeds £260,000 — it reduces the allowance by £1 for every £2 over, down to a minimum of £10,000.

So why are dentists still being caught? Three reasons:

• NHS pension statements lag. The statement covering 2024/25 often arrives in late 2025 or early 2026 — by which point you may already have unknowingly exceeded the allowance.
• Private earnings and dividends count towards adjusted income. A dentist with £180k NHS, £90k private, and £40k dividends from a limited company can find their taper kicking in without warning.
• Scheme Pays deadlines are strict. If you want the NHS pension to pay the tax charge on your behalf, you must elect by 31 July of the year after the tax year in which the charge arose. Miss it, and the bill is yours, in cash.

Carry-forward: the relief most dentists forget about

You can carry forward unused annual allowance from the previous three tax years, provided you were a member of a registered pension scheme in each of those years. That is almost always true for NHS dentists. The order of use is current-year allowance first, then the oldest carry-forward year, then the next.

In practice, this means a one-off PIA spike — say, following promotion to senior partner — can often be absorbed without a charge at all, provided no one breached the allowance in the three prior years either. A specialist dental accountant will model this before you make the Scheme Pays election, because once you elect, your NHS pension is permanently reduced.

Scheme Pays vs. paying the charge personally

If the charge is unavoidable, you have two options. Mandatory Scheme Pays is available if the charge is over £2,000 and relates solely to the NHS scheme exceeding the standard allowance. Voluntary Scheme Pays covers a wider range of circumstances but has a separate deadline.

The trade-off: Scheme Pays reduces your eventual pension by an actuarial reduction factor, which for most dentists in their 40s and 50s makes paying personally the better long-term choice — provided you have the cash. This is exactly the kind of modelling a dental-specialist accountant runs before you make the election.

The annual allowance has become a full-time problem for part-time dentists. The right accountant pays for themselves in the first year, often in the first Scheme Pays decision alone.

What we match you with

Every accountant in our Harrow network specialises in dental. They will read your NHS pension Total Reward Statement, calculate your PIA correctly for the year, model the carry-forward waterfall, and advise on whether Scheme Pays or personal payment makes more sense for your age and retirement horizon. You pay nothing to use our matching service — fees go to the accountant you ultimately engage.