Main points
- The pension annual allowance and its taper expose clinicians to complex, unpredictable tax charges that discourage overtime and additional sessions.
- Full abolition would offer the greatest clarity, but much of its fiscal cost would benefit savers outside the NHS, and lower contribution relief limits would provide only a partial offset. Abolishing the taper and indexing the allowance offers a narrower alternative with a stronger estimated benefit–cost ratio.
Current policy
Currently, pension contributions mainly attract income tax relief, with most given through net pay arrangements and employer contributions. To mitigate this cost there is a maximum annual allowance (AA): £60,000 total pension input (employee + employer + relief), tapered down to £10,000 for those with threshold income above £200,000 and adjusted income above £260,000. For NHS staff in a defined benefit (DB) scheme, the AA is assessed through pension input amount (i.e. the annual growth in promised benefits), rather than actual contributions. Due to how growth is calculated, a pay rise could cause an unexpected increase in this amount. An excess triggers an AA charge, effectively clawing back relief at the individual’s marginal rate.
The allowance is tapered for higher earners when their threshold income exceeds £200,000, and their adjusted income is more than £260,000. The standard allowance is reduced by £1 for every £2 of excess adjusted income until it hits a floor of £10,000.
Evidence of disincentive effect
Current policy creates a significant trap for medical consultants in that most waiting-list and extra-session pay cannot be included in a consultant’s pension. Therefore, it increases threshold income and does not add to pension benefits. Crossing the £200,000 income threshold can trigger a disproportionate tax charge. In extreme cases, a £2 increase in extra income can incur a tax of £6,750, and the taper can increase the charge by up to £22,500.
Furthermore, the charge is assessed and paid through the self-assessment mechanism and frequently results in large five-figure sums being owed, which are complex to calculate, 18 months after the salary is paid. This has disincentivised many clinicians from undertaking additional work to prevent the threshold being breached.
In March 2025, the current government said there was no evidence that the pension allowance regime “constrains the activity of the consultant workforce in aggregate”.[7] However, a 2024 BMA poll reported that 71 per cent of all respondents to its member survey “indicated that if there were no further reforms to the tapered AA following the general election, this will prevent or limit their ability to take on additional overtime. Amongst consultant respondents, this proportion rose to 77.1%.”[8]
Following a lack of reform, the BMA conducted another snap survey in February 2025. Over 5,000 GPs and consultants were surveyed and out of the consultants 21 per cent had reduced regular overtime, 16 per cent had gone part-time and 24 per cent had cut ad-hoc/waiting list initiative sessions.
This issue is worsened by administrative delays. Clinicians are forced to decide whether to take on extra work before knowing their pension input. The same BMA survey revealed that 45 per cent of respondents said they did not know whether they would be liable for an annual allowance charge in the 2024–25 financial year. This uncertainty was in part due to NHSBSA delays in releasing pension savings statements.
Benefits of reform
The high levels of disincentive due to the annual allowance restrictions are obvious. Clinicians suffer often from a clear lack of financial incentive, either from a clear assessment of how much they add to their pension or the uncertainty of the current system.
The likely benefits of reform are equally obvious. After their February 2025 poll, the BMA estimated that loss from clinicians disengaging due to current pension policy was equivalent to losing 5,400 consultants and 4 million GP partner appointments in England alone.[9] Twenty-three percent of GP partners had reduced their regular workload, averaging 1.7 sessions per week. These numbers represent the very real gains for NHS capacity which could be made by supply-side reform.
There are different options open to policymakers for reform.
- Full and immediate abolition of the AA charge
- Sequential abolition: first remove the taper, then raise the AA threshold to a figure higher than £60,000, then abolish completely
- Abolish only the taper
Immediate abolition would have the benefit of clarity for clinicians and would swiftly introduce supply-side workforce improvements which would increase NHS capacity. Sequential and partial reform would have the benefit of impacting less suddenly on the Treasury but would obviously release less capacity and may still leave clinicians uncertain of their tax liabilities.
Scrapping the AA charge entirely would remove the cap on total inputs (beyond the earnings limit), allowing higher earners with significant employer contributions or carry-forward to put in more and claim full relief without penalty. As NHS clinicians using a defined benefit scheme have their accruals set by scheme rules, abolition would see their charges removed rather than prompt more saving. Additional savings would mostly be derived from company directors and defined contribution savers.
A trade-off? Funding AA abolition by lowering the pension relief limit
Political economy of high-earner pension reform
It is the view of the Prosperity Institute that Britain should strive for far lower taxes and a far simpler tax regime for all. In a forthcoming tax reform project, we will outline our vision for this in more detail.
However, the question in view here is how fiscal reform can incentivise key NHS staff into more work, rather than that of overall tax simplification and reduction. We recognise that, despite public appetite for NHS reform reaching new heights (as confirmed in our own polling), the sensitive political economy of NHS-related reform and the dire state of the public finances will require trade-offs.[10]
As such, it is worth considering whether AA reform could be delivered with cost neutrality via changes elsewhere. This could be approached either through a cost-neutral reform that does not fall on the clinicians it is designed to support, or a reform whose net cost is justified to the public by its benefit to the NHS.
Current AA charges raise approximately £300m per year.[11] This would be the static cost to the Treasury before any behavioural effect of increasing healthcare capacity through the abolition of the AA. These behavioural effects include tax paid through Scheme Pays (£164m) and excess savings through Self-Assessment (£672m).
This lost AA revenue could be partly offset by reducing the tax-free amount which can be paid into pension funds, which is currently 100 per cent of salary and excludes employer contributions.
The limit currently applies only to a small number of people contributing more than 70 per cent of their earnings. A 70 per cent limit will only raise approximately £100m a year which is equivalent to 8 per cent of the central cost of full abolition.
While the immediate, direct beneficiaries of these policies are ultimately a small number of individuals, the AA reform has the benefit of releasing NHS capacity, allowing more patients to be treated in more quickly.
There is no simple, official figure for this exact policy trade-off, as it would require detailed HMRC microdata modelling of contribution distributions, marginal tax rates, and behavioural responses. However, a reasoned estimate is possible based on available statistics.
Basic cost of AA abolition
The current personal/employee relief limit is up to 100 per cent of earnings (or £3,600 minimum). This only applies to individual contributions and excludes employer contributions (including those made through salary sacrifice).
The full dynamic effect needs to be considered. Without the AA, some high earners would increase contributions further (up to their full earnings limit), generating additional upfront relief costing the Treasury more (we estimate approximately £0.3–£4bn per year, depending on behaviour, with a central estimate of £0.9bn). High earners (Higher and Additional Rate taxpayers) drive most of this. This trend comes mainly from company directors and defined contribution savers, as NHS clinicians cannot increase their pension growth in this manner.
The short-term net extra cost to the Exchequer from scrapping the AA entirely (including behavioural uplift) is likely in the range of £0.6–£4.5bn, with a central estimate of £1.2bn annually in the short term, concentrated among a small number of high contributors (around 23,000–50,000 people exceeding the AA). HMRC figures show that in 2024-25, 30,440 individuals reported that their pension contributions exceeded their annual allowance.[12] Incentives to “over-save” would be severely hampered if unused pension funds become subject to inheritance tax (IHT) in April 2027 as planned, thereby making this upper end less likely. To compare, the OBR estimated the cost of raising AA from £40,000 to £60,000 in 2023 as £270m a year. [13]
What earnings cap reduction would offset AA abolition?
To achieve revenue neutrality in abolishing the AA (i.e. no net loss to the Treasury), the pension relief limit of 100 per cent of earnings could be lowered. As this cap applies to individual contributors, lowering it would restrict relief mainly to a small cohort of high contributors.
In 2024–25, income tax relief on individual contributions was £12.9bn.[14] Most of this relief goes to basic/higher-rate taxpayers with moderate pension contributions well below that of 100 per cent of earnings who will be unaffected by the lower cap.
Below, we have estimated approximately the potential tax revenue from lowering the relief cap to different levels:
| Relief cap |
Estimated annual revenue |
Central estimate |
Share of £1.2bn central cost of full AA abolition |
| 80 per cent |
£20m–£90m |
£45m |
2–8 per cent |
| 70 per cent |
£50m–£190m |
£100m |
4–16 per cent |
| 60 per cent |
£100m–£390m |
£190m |
8–32 per cent |
| 50 per cent |
£160m-£650m |
£320m |
13–54 per cent |
As is clear, even a 50 per cent cap only raises around a quarter of the £1.2bn cost of full AA abolition.
However, this is not precise. Actual modelling (e.g., by OBR/IFS/HMRC) would depend on:
- Exact distribution of contributions relative to earnings.
- Marginal rates of those affected.
- How many people increase contributions post-AA scrapping.
- Interaction with employer contributions and salary sacrifice.
Cost neutrality cannot be achieved by reducing the cap on individual contributions alone. Our modelling shows that fully abolishing the annual allowance would require a broader package. This could include capping pension tax relief for additional-rate taxpayers at 40 per cent, alongside a 70 per cent contributions cap that includes employer contributions.
What if employer contributions are included?
An additional change could be to include employer contributions in the reduced cap. Currently they are outside it.
A large number of public sector employees benefit from substantial employer contributions in excess of 20 per cent of salary. This includes the clinical workforce this policy is aimed at incentivising. By including employer contributions in the cap, the policy may be seen as fairer, with public sector employees contributing more at source in exchange for abolition of the AA.
Were the pension relief limit reduced to 70 per cent, our analysis shows that including employer contributions would not push the workers targeted by the proposal over that limit. An NHS consultant’s combined member (12.5 per cent) and employer (23.7 per cent) contributions amount to 36.2 per cent of pensionable pay. Even when measured on pension input amount, a typical consultant is at 38 per cent. However, because members with large one-off pay increases can approach 60 per cent, there would need to be a smoothening rule (e.g. three-year averaging) for any cap tested on defined benefit pensions.
We estimate that including employer contributions would raise the total tax revenue from the 70 per cent relief limit to approximately £460m, most of which would come from company-owner directors who tend to make large employer contributions in contrast to small salaries from NHS staff.
In addition, GP partners pay employer contributions for pensions from their global sum income. However, reducing the tax-free allowance to 70 per cent and including employer contributions should not cause GPs to breach the new lower limit as their combined contributions are approximately 36.2 per cent of NHS pensionable profit.
Overall, we are proposing a broader tax base with tax simplification. The key to pension reform is to reduce complexity to make it user-friendly and generate good will from clinicians. However, there is a risk here of creating a system that is too complex and uncertain, deterring workers from taking advantage of it.
Partial offset acceptable within broader political economy and spending reductions
Our above estimates have shown that the full cost of AA abolition could likely not be covered even by reducing the pension relief limit to as low 50 per cent. Even including employer contributions within a 70 per cent limit would raise only around 38 per cent of the cost. A partial offset is the best that could be achieved.
However, this is a policy considered as a trade-off, potentially justifiable in a political economy in which the government is seeking ways to release NHS capacity quickly and cost effectively.
Furthermore, if a future government were committed to a broad programme of reduced public spending, then achieving only a partial offset of full AA abolition may well be a fully acceptable policy trade-off.
An alternative: Abolish the AA taper and index the threshold
A narrower reform of abolishing only the tapered annual allowance (central cost of approximately £270m) could be entirely funded by capping pension tax relief at 40 per cent on personal and salary-sacrifice contributions made by current additional-rate taxpayers. This would raise £340m—enough to fund abolishing the tapered AA. Extended to all contributions (including employer contributions), this would raise approximately £710m.
Were the taper to be abolished, the AA threshold should be simultaneously indexed to inflation, to avoid swiftly losing the incentive benefits for NHS staff via fiscal drag. The threshold has been static since 2023–24. Had it risen with inflation, it would now be approximately £66,100.[15]
Due to a lower cap on individual contributions only affecting a minority of savers, this would not function as a broad-based trade-off. Rather, the burden would fall primarily on other high earners and high savers. For authoritative costing, an official dynamic analysis from HMRC or the OBR would be needed if such a policy were to be instigated.
Our Cost-Benefit Analysis strongly supports this framing for abolishing the tapered Annual Allowance, with a central Benefit Cost Ratio (BCR) of 1.9. Conversely, fully abolishing the AA falls below 1 (at 0.7). This is because the majority of its cost benefits savers outside the NHS.