Andy Burnham is back in Westminster. His victory in the Makerfield by-election on 19 June 2026 removes the last procedural obstacle between him and a formal challenge to Keir Starmer's leadership - and, given Labour's parliamentary majority, a route to Downing Street that bypasses a general election entirely. His victory speech left little ambiguity: "Everyone knows that politics isn't working. Tonight could, just could, be the turning point."
For the private medical insurance sector, the question is no longer hypothetical. The politician most likely to become the UK's next Prime Minister spent the defining years of his career arguing that the answer to healthcare pressure is a better public system - not a larger private one. He now stands on the threshold of power at the precise moment that PMI-funded admissions have hit a fourth consecutive annual record, employer health coverage is at its highest penetration in three decades, and the industry's structural growth thesis has never looked stronger.
The collision of those two facts is the story the sector needs to be thinking about now.
The numbers are striking. According to Broadstone's analysis of FCA Financial Lives Survey data, approximately 14% of UK adults - around 7.6 million people - now hold PMI, up from 6.7 million in 2020. PMI-funded private hospital admissions have surged 17% above pre-COVID levels, with Broadstone recording 500,000 such admissions in the first nine months of 2025 alone. The Association of British Insurers reports that health insurers processed a record £4 billion in individual and workplace PMI claims in 2024 - roughly £11 million paid out every single day of the year, up 13% on the year before.
The engine driving all of this is well understood. NHS England's referral-to-treatment waiting list stood at approximately 7.4 million treatment pathways as of late 2025. Brett Hill, head of health and protection at Broadstone, has been consistent about what that means for employers: "The NHS remains under significant pressure, which means that businesses increasingly view access to timely diagnosis and treatment as a critical factor in supporting employee wellbeing, productivity and retention."
The commercial response has been substantial. Employer-funded PMI and health cash plans have hit record levels, with Broadstone's latest Employee Benefits Landscape Report finding that almost a third of employers without current PMI provision are planning to introduce it within three years. In a sign of how embedded the market has become, Bupa recently locked in a four-year partnership with Spire Healthcare explicitly underpinned by sustained PMI-driven demand - a deal that would have been unthinkable as a long-term commercial commitment even five years ago.
This is the market Burnham would inherit responsibility for shaping.
Burnham's instincts on healthcare have been consistent across two decades in politics, and they do not start from a position of enthusiasm for private provision.
As Health Secretary under Gordon Brown, he made his political name by pushing back against Tony Blair's "Any Qualified Provider" model - a framework that had effectively opened NHS commissioning to a free market in health. Burnham's replacement, the "NHS as preferred provider" model, did not ban private operators from NHS work, but it reasserted public provision as the institutional default. It was a deliberate, structural choice to limit market forces in healthcare, not merely a rhetorical one.
Through his years as shadow health secretary and then as Greater Manchester Mayor, that position has not fundamentally shifted. Speaking at a Socialist Health Association meeting in Manchester in June 2025, he distanced himself from the current government's Integrated Care Board model, describing it as "top down, not devolution" and expressing concern that prevention had been cut for financial reasons. His language, consistently, is about integration, place-based care, and public control - not market competition.
His broader governing philosophy, which he calls "Manchesterism", extends that logic. As he told the Cambridge Bennett School in March 2026, the approach proposes "a fundamental shift away from Westminster's centralised, top-down mandates toward a streamlined, place-based delivery model" - one in which "public control is a prerequisite for growth, rather than a reward for it." He points to Greater Manchester's Bee Network, which brought bus services back under public authority control at a third cheaper per kilometre than its privatised predecessor, as the template. Healthcare, in Burnham's framing, sits in the same category as transport and housing: a public good that market logic has distorted.
None of this makes him categorically hostile to the existence of private medical insurance. He has not proposed abolishing it, restricting it, or legislating against employer-provided PMI. But the policy environment he would create is one in which the momentum is firmly toward public provision - and that matters for an industry whose growth thesis rests on NHS underperformance continuing to drive demand.
There is a more concrete near-term concern: the fiscal environment.
Burnham's campaign has explicitly declined to commit to Labour's 2024 manifesto tax pledges. When Bloomberg asked whether he would maintain the party's election promises not to raise income tax, national insurance, VAT or corporation tax, his spokesperson declined to confirm it and did not rule out new wealth taxes. That is unusual candour, and it signals that a Burnham Budget would be written on a blank page rather than a continuation of the current settlement.
For insurers and their corporate clients, the most sensitive pressure point is Insurance Premium Tax. IPT receipts have risen to £8.88 billion, driven in significant part by rising health insurance premiums and growing PMI uptake. The industry has spent considerable political capital making the case for reform - or outright exemption - on health products. Cara Spinks, head of life and health at Broadstone, has argued that abolishing IPT on health insurance could be "a public health intervention, a productivity booster, and a mutual sector enabler," and that the current 12% standard rate on PMI and health cash plans "continues to act as a barrier for access to health insurance products, undermining both public health goals."
That argument has a coherent logic - reduce IPT, increase PMI uptake, reduce NHS pressure, serve the public health agenda. Whether it gains traction with a Prime Minister whose ideological instincts run toward public provision is a genuinely open question. The more uncomfortable scenario for the industry is one in which a cash-constrained Burnham Treasury looks at IPT's record revenue trajectory and sees a lever it cannot afford to ease - or, worse, one it is tempted to pull harder.
There is also the employer NI picture. Burnham has already signalled he would revisit the employer National Insurance contribution increases introduced in Labour's 2024 Budget, telling Newsnight: "I have said that I thought the weight of the burden of employers' national insurance wasn't the right decision." Any restructuring of employer NI - up or down - directly affects the cost calculation for businesses providing PMI as a benefits-package line item. For the many mid-sized employers who have been won over to group PMI schemes in recent years on the basis of a relatively stable cost environment, policy-driven repricing at renewal would be a serious headwind.
Beneath the tax and regulatory questions sits a more fundamental tension, and it is worth naming directly.
The PMI growth story of the past four years is, at its core, a story about NHS failure. Not catastrophic failure - but the persistent, structural gap between what the NHS can deliver and what patients need, measured in waiting lists that have remained stubbornly above seven million for three years. Broadstone's Hill has noted that "political uncertainty potentially disrupting planned NHS reforms" is itself part of why private health admissions keep hitting new highs and why PMI "is expected to remain firmly embedded within employee benefits strategies." In other words: the industry's medium-term growth outlook partly depends on the NHS continuing to struggle.
Burnham's entire platform is built on fixing that. His devolved, integrated, place-based model of healthcare - piloted in Greater Manchester with what he describes as measurable improvements in population health outcomes - is explicitly designed to reduce the gap between NHS capacity and public demand. If it works at scale, the structural driver of PMI growth weakens. If it works well, it weakens significantly.
This is not an argument that PMI's future is in danger. Quite the opposite: the market has reached a scale and an institutional embeddedness - almost seven million holders, a record 4.7 million in employer-funded schemes, and a pipeline of corporate adopters - that is not going to unwind in response to a change of government. Burnham's own track record as Mayor shows he is a pragmatist, not an ideologue: the "preferred provider" model did not abolish private healthcare, it repositioned it. A similar approach nationally would mean recalibrating the framework within which private health operates, not dismantling it.
But the trajectory matters. An industry that has grown used to political tailwinds - NHS pressure as a perpetual demand driver, governments reluctant to touch IPT, employer mandates creating a captive corporate market - should begin gaming out what a more complicated political environment looks like.
For insurers, intermediaries, and HR directors building benefits strategies, the following are the near-term indicators worth tracking.
The first Budget. Burnham has said he would adhere to current fiscal rules, which means spending headroom is tightly constrained. IPT policy will be an early signal of intent. Reform - specifically a targeted health insurance exemption - would represent a significant concession to the industry's arguments and would suggest a pragmatic rather than ideological approach to the private health sector. A freeze is neutral. A rise would be the clearest sign yet that the fiscal logic has overridden the public health one.
The NHS reform programme. Burnham's approach to national healthcare will take time to materialise - his devolution model requires legislative change and years of implementation. Short-term waiting list movements will be the key variable to watch. There is no credible scenario in which NHS pressure resolves quickly enough to dent PMI demand within a first parliamentary term. But the direction of travel under Burnham would be toward lower waiting lists over time, not higher ones.
Employer NI. Any revision to the 2024 contribution rates will ripple through the corporate PMI market quickly. Watch for it in the first Budget or Autumn Statement.
Preferred provider at a national level. Burnham's NHS policy has not been fully articulated for a national context, and his campaign team has been deliberately vague. Whether he revives the preferred-provider framework nationally - and how it would apply to the NHS's existing and growing use of private hospital capacity - is one of the most consequential unanswered policy questions for the sector.
The most practical takeaway for the sector is this: the political case for private medical insurance needs to be remade for a Burnham government, and it needs to start now.
Under Starmer, the industry's argument has been built largely on the NHS's deficit - on the gap PMI fills when the public system cannot cope. That argument has diminishing traction with a Prime Minister whose mission is to close the gap. The more durable case is a complementary one: that PMI and the NHS are not in competition, that employer-funded health cover reduces sickness absence, keeps people in work, and takes economically inactive patients off NHS lists faster than the public system can manage alone. That case has been made by Broadstone, by the ABI, and by individual insurers. It needs to be made more loudly, more directly, and with a political audience that has not historically been sympathetic.
Burnham's win in Makerfield is not a crisis for the private health insurance market. But it is a signal that the assumptions underpinning the last four years of growth - political indifference, structural NHS underperformance, a permissive fiscal environment for health benefits - are no longer safe to take for granted.
The industry's task is to make itself indispensable to the Burnham project, not merely tolerated by it.
