Incorporation is usually sold on a single number: the tax you will save by taking a small salary plus dividends instead of a sole trader's profit share. For an NHS dentist there is a second number that is rarely quoted in the same breath, and it can be much larger. It is the NHS pension you stop building once your income arrives as dividends, because for the officer route only your salary is pensionable and dividends are not. The tax saving shows up immediately on your accountant's spreadsheet. The pension loss is invisible until retirement, by which point it cannot be undone.

This guide explains the trap plainly, sets out an important nuance for dentists who hold the NHS contract, and then models the cost: the drop in pensionable pay, one year of lost CARE accrual, and the compounding loss over a 10 to 15 year run to retirement. That last figure is the one that must sit beside any incorporation tax saving. The numbers here are illustrative, and because the treatment turns on your own contract position, you should confirm your pensionable pay with NHSBSA before acting.

The trap in one sentence

Incorporate, pay yourself a small salary plus dividends, and on the officer route only the salary is pensionable while the dividends are not, so your pensionable pay can collapse even though your take-home barely moves. The tax saving is visible and the pension loss is hidden, which is exactly why the trade is so easy to get wrong.

How NHS pensionable pay works before you incorporate: practitioner versus officer

Two scheme terms decide everything here, so it is worth defining them in plain language. We cover them in more depth in our guide to NHS pensionable pay for dentists.

A practitioner is a dentist whose NHS pensionable earnings derive from their net NHS-derived income. As a sole trader or partnership principal, your pensionable pay is built from your NHS profit under the scheme's permitted-expenses rules, certified on a year-end pension certificate, with a tiered employee contribution rate. The whole of your qualifying NHS-derived profit feeds your pension.

An officer is treated like an employee: only the PAYE salary is pensionable. When you incorporate and pay yourself a salary, that salary is generally pensioned on the officer footing. The profit you take as dividends does not run through PAYE and so does not enter the officer pensionable figure. That single shift, from practitioner pensionable profit to officer pensionable salary, is the mechanism of the trap.

The 2015 CARE scheme: what you are actually accruing

To see why pensionable pay matters so much, look at what it buys. Since 1 April 2022 all active members accrue in the 2015 section, a Career Average Revalued Earnings scheme. Each year you earn 1/54th of that year's pensionable earnings as guaranteed annual pension, and each tranche is revalued while you stay active at CPI plus 1.5%. Older 1995 and 2008 service sits behind it as legacy benefit. We explain the three sections in our guide to the NHS 1995, 2008 and 2015 schemes for dentists.

The point is that pensionable pay is not a side issue or a compliance figure. It is the direct input to a lifetime, inflation-linked, guaranteed income. Cut the input and you cut the output, permanently, for the years affected. A pound of pensionable pay forgone is not a pound of cash forgone; it is 1/54th of guaranteed pension, revalued every year and paid for the rest of your life, that you will never earn.

It helps to picture the scheme as a savings account where every year you deposit 1/54th of that year's pensionable pay as a permanent annual income, and the balance grows each year by CPI plus 1.5% for as long as you keep paying in. Stop depositing for a stretch of years, as the trap causes you to do, and that part of the balance is simply never created. There is no catch-up for the missed years short of buying it back at full cost, which is the subject of a later section. Because the benefit is defined by your pay rather than by investment returns, the only variable you control is the pensionable figure itself, and incorporation is one of the few decisions that can move it sharply in one go.

Why dividends fall outside pensionable pay

The reason is structural, not arbitrary. Pension input is built on earnings. A salary is earnings: it runs through PAYE and into the officer pensionable figure. A dividend is a return on your shares, an investment receipt rather than payment for work, and it does not pass through PAYE at all. So when you convert profit into dividends, you are converting earnings into investment income, and investment income does not build NHS pension. Stated plainly: dividends are not pensionable on the officer route. That is the whole of the trap in one line, and it is easy to miss precisely because the cash still lands in your account.

An important nuance for NHS-contract-holding principals

Here the picture becomes genuinely case-specific, and it is important not to over-state the rule. The clean "salary only, dividends never pensionable" statement is exactly right for an incorporated associate or non-contract-holder on the officer route, and for any profit above the NHS pensionable ceiling. But where an incorporated principal actually holds the NHS GDS or PDS contract through the company, NHSBSA may pension the principal's NHS-derived profit up to the contract's ceiling figure through the practitioner mechanism, rather than restricting pensionable pay to the PAYE salary. In that case the position is not simply salary-only.

Whether an incorporated contract-holding principal can pension NHS-derived profit in this way is genuinely contested and depends on the specifics, so we do not assert it either way. Treat the trap as the default risk for incorporated associates and non-contract-holders, recognise that the contract-holder position may be more favourable up to the ceiling, and confirm your own pensionable-pay treatment directly with NHSBSA before you rely on either reading. This is the single most important caveat on the page: the maths below illustrates the officer-route trap, and your actual figure depends on your contract status.

Worked example: pensionable pay before versus after incorporation

Take a principal with £150,000 of NHS-derived pensionable profit as a sole trader. As a practitioner, pensionable pay is around £150,000, subject to the scheme's permitted-expenses rules.

They incorporate and, on the officer-route framing, pay themselves a £30,000 salary plus £100,000 of dividends. Pensionable pay falls to the £30,000 salary. The drop in pensionable pay is about £120,000 for that year, even though their take-home is broadly similar. The cash looks almost unchanged; the pension input has been cut by four-fifths.

The caveat from the previous section applies in full: a principal who holds the NHS contract may pension NHS-derived profit up to the contract ceiling, in which case the drop is smaller or absent for the pensionable slice. Confirm the actual figure with NHSBSA. The example shows the mechanism for the officer route, which is the default exposure.

Worked example: one year of lost CARE accrual

Convert that single-year drop into pension. Lost pensionable pay of £120,000, at the 2015 scheme's 1/54th accrual rate:

£120,000 × 1/54 = about £2,222 of guaranteed annual pension not earned in that one year, in today's terms before revaluation.

That £2,222 is not a one-off. It is an annual pension payable for life from normal pension age, and while you remain active each tranche is revalued by CPI plus 1.5%. Even a single year of the trap removes a meaningful, permanent, inflation-linked income stream. The figure is illustrative, but the arithmetic is straightforward, and it understates the position because it ignores the revaluation that follows.

Worked example: the 10 to 15 year run to retirement

The real damage is in the repetition. If the reduced pensionable pay persists year after year, the lost accrual stacks up, and each year's lost tranche would also have been revalued at CPI plus 1.5% while you stayed active. Take the trap running for 12 years to retirement.

  • Without revaluation, 12 years of about £2,222 of lost annual pension is roughly £26,700 of guaranteed annual pension forgone.
  • With active revaluation applied to each tranche, assuming CPI of around 2% so revaluation near 3.5% a year, the figure rises to roughly £32,400 of lost annual pension at retirement.
  • Run it for 15 years and the revalued figure is roughly £42,900 of lost annual pension.

Now translate that into capital. A guaranteed, inflation-linked annual pension of £32,000 or more is extraordinarily expensive to replicate on the open market: buying an equivalent index-linked annuity would cost a very large capital sum, comfortably into the high hundreds of thousands of pounds. That is the number that must sit beside the incorporation tax saving, not the year-one tax figure on its own. A principal we reviewed had been quoted a five-figure annual incorporation tax saving with no mention of the pensionable-pay drop; once the lost CARE accrual was modelled over the run to retirement, the net picture changed materially.

Two refinements make the comparison fairer rather than alarmist. On the one hand, staying pensioned is not free: NHS pension comes with a tiered employee contribution, so the practitioner who keeps a high pensionable pay also pays a meaningful contribution on it, and that cost should be netted off when comparing routes. On the other hand, the lost-accrual figures above are conservative, because they stop at retirement and ignore the further revaluation in deferment and the spouse and survivor benefits the scheme also provides. The honest position is that the trap costs less than the headline capital-equivalent once contributions are netted off, but still typically far more than a narrowed post-2026 tax saving for an NHS-heavy dentist. The direction of the answer is rarely in doubt; only its precise size needs your own figures.

The cost of staying pensioned, and why it is still usually worth it

It is reasonable to ask whether keeping a high pensionable pay is worth the contributions it attracts. The NHS scheme charges a tiered employee contribution that rises with pensionable pay, so a high earner pays a substantial percentage of their pensionable figure into the scheme each year. That is a real cash cost, and it is the fair counterweight to the accrual value. But the comparison still tends to favour staying in, for a simple reason: the scheme is heavily subsidised and the benefit is a guaranteed, inflation-linked income that the open market prices very dearly. Few defined-contribution alternatives turn the same contributions into the same certain, index-linked outcome. The contribution is the price of an asset that is hard to buy anywhere else, which is exactly why giving up the accrual through incorporation is such a consequential, and easily overlooked, decision. Model the net position, contributions included, rather than reacting to either the gross accrual or the gross contribution in isolation.

Setting the pension loss against the tax saving

The discipline is simple to state and easy to skip: never weigh the incorporation tax saving alone. Put the two numbers side by side.

On one side, the tax saving, which incorporating is supposed to deliver. After Finance Act 2026 raised dividend rates to 10.75% and 35.75% from 6 April 2026, that saving on extraction has narrowed sharply, and on a full-extraction basis it can be neutral or negative at typical principal profits. On the other side, the lost CARE accrual, which for an NHS-heavy dentist can run to tens of thousands of pounds of guaranteed annual pension over a career. When a shrinking tax saving meets a large pension loss, the trade often does not stand up. The salary and dividend extraction that creates the trap is set out in our guide to dental practice profit extraction.

Can you rebuild it? Salary, Added Pension, MPAVCs and private pensions

If you have incorporated for sound non-pension reasons, several routes can partly rebuild the lost accrual, each with a cost.

  • Raise the PAYE salary. A higher salary is pensionable on the officer route, so it directly restores some pensionable pay. The catch is that it adds employer National Insurance and reduces the dividend efficiency that was the point of incorporating, so you are partly handing back the tax saving to buy the pension back.
  • Added Pension. This buys extra defined-benefit accrual within the NHS scheme, the same guaranteed, revalued kind of benefit you lost. It is the closest like-for-like rebuild, attracts income tax relief, and is constrained by the annual allowance.
  • Money Purchase AVCs and private pensions. These are defined-contribution pots. They attract tax relief and have their place, but they do not replicate the guaranteed, inflation-linked CARE benefit, and their final value depends on markets. Our guide to pension contributions and tax relief for dentists covers how the relief works.

The honest verdict: a private defined-contribution pot rarely matches the NHS defined-benefit value pound for pound, because you are buying guarantees and inflation-linking that the open market prices very highly. Rebuilding is possible, but it is not free, and it usually costs more than the tax that incorporation saved.

The annual allowance angle for high earners

For high-earning principals there is a further interaction to flag rather than over-claim. A principal with large historic NHS service can breach the £60,000 annual allowance on pension growth alone, measured as the capitalised input amount rather than contributions paid. The allowance tapers where threshold income exceeds £200,000 and adjusted income exceeds £260,000, falling by £1 for every £2 of adjusted income above £260,000 down to a £10,000 floor. Incorporation changes your income mix and can move you across those thresholds in either direction, and Scheme Pays may be the sensible route to settle any charge. We cover this in detail in our guide to annual allowance tapering for NHS dentists. The interaction is real, but it is too case-specific to assert a single outcome, so treat it as a reason for a specialist review, not a rule.

The decision framework

Put in order, the sequence for any NHS dentist weighing incorporation is:

  • Model your pensionable-pay treatment first. Confirm with NHSBSA whether, given your contract position, your NHS-derived profit can still be pensioned up to the ceiling, or whether you fall on the officer route where only salary counts.
  • Then model the tax saving, at current 2026/27 rates, on the extraction you actually plan, not a draw-it-all assumption.
  • Then model the lost accrual over your real run to retirement, with revaluation, and translate it into a capital-equivalent figure.
  • Compare the two side by side, and check the annual allowance interaction if you are a high earner.

Incorporate for the right reasons, such as limited liability, reinvestment or sale planning, and only after the pension loss has been measured. Do not incorporate for a tax saving that the dividend rise has already shrunk and that a pension loss may quietly swallow. The defined-benefit accrual you give up is one of the hardest financial assets to rebuild, so the time to cost it is before you act, not at retirement when the choice is behind you.

What to confirm with NHSBSA before you decide

Because the answer turns on facts only the scheme administrator can settle, it is worth going to NHSBSA with specific questions rather than general ones. The points that actually move the numbers are these:

  • Your status after incorporation. Whether, given your particular contract arrangement, you would be treated on the officer route, with only salary pensionable, or whether NHS-derived profit can be pensioned through the practitioner mechanism.
  • The contract ceiling, if you hold the contract. The figure up to which NHS-derived profit may be pensionable, which sets how much of the trap actually bites for you.
  • The treatment of profit above the ceiling. This portion is the part that most clearly falls outside pensionable pay, regardless of contract status.
  • Your projected pensionable pay under each route. A concrete before-and-after figure is what the lost-accrual model needs, rather than an assumption.

Armed with those answers, the accountant's tax model and the pension model can finally be set against each other on the same basis. Until you have them, any incorporation projection for an NHS-heavy practice is built on a guess about the single most important variable.

A note on McCloud and legacy service

One reassurance is worth stating, because it is a common source of confusion. The McCloud remedy, which rolled members' remedy-period service back into the legacy 1995 or 2008 sections and gives a choice at retirement, deals with service you have already built. It does not protect future accrual, and it does not change the incorporation trap. If you incorporate and your pensionable pay falls, the accrual you stop earning from that point is simply not earned, whatever happens with your historic remedy-period service. So McCloud is not a reason to be relaxed about the trap: it tidies the past, while incorporation affects the future. Treat the two as entirely separate questions, and do not assume that a favourable McCloud position offsets the forward loss this page has modelled.