The prospect of yet another British Prime Minister looms large. Should it materialise, the United Kingdom would see its fifth leader in just six years, a stark contrast to the three decades of relative stability under the previous five PMs from John Major onwards. Michael Browne, Global Investment Strategist, Franklin Templeton Institute, outlines what might come next if Starmer exits Number 10.
For a generation, British economic policy enjoyed remarkable consistency. What observers call “Treasury orthodoxy” survived major upheavals—the 2008 financial crisis, the COVID-19 pandemic, with politicians and markets maintaining a shared understanding of appropriate policy responses.
The brief disruption of Liz Truss’s 44-day premiership served only to strengthen this consensus through its spectacular failure.
Yet the carousel of Prime Ministers signals something deeper: British politics has entered an era of fundamental polarisation and instability.
Two Scenarios, Two Futures
With Labour’s parliamentary majority secure, the question isn’t whether there will be an election, but which faction within the party would shape the next administration. Two distinct possibilities emerge.
The Steady Hand: Minimal Disruption
A continuity leadership would largely honour October’s budget framework—maintaining the trajectory toward the May 2028 election through measured fiscal expansion balanced by deferred tax increases. Personal and wealth taxes would rise substantially in 2028/29, though spending priorities might shift between departments.
The Chancellor could remain unchanged, though external pressures might force even a continuity candidate to adopt elements of the more interventionist agenda outlined below.
The Transformative Vision: Breaking the Mould
The alternative represents something far more significant: a genuine departure from decades of economic orthodoxy.
Labour’s progressive wing has grown increasingly frustrated with low growth and limited economic transformation. A left-leaning leader would pursue aggressive market intervention—particularly in dysfunctional sectors like housing—while redirecting substantial resources toward education, healthcare, and social care.
The Office for Budget Responsibility’s fiscal constraints might be abandoned entirely. Senior appointments could change; Andrew Bailey’s governorship at the Bank of England expires March 2028, offering an opportunity for ideological realignment.
The Policy Arsenal
Proposals sidelined in the recent budget provide a roadmap. Enhanced taxation options include:
- Capital gains levies on primary residences
- Elevated bank sector taxation
- Restrictions on ISA holdings
- Aligning dividend taxes with income tax rates
- National Insurance contributions from working pensioners
- Commercial stamp duty
- Lower VAT thresholds
These measures alone could generate approximately £20 billion, predominantly from savings and accumulated wealth.
More ambitious options exist: a 2% wealth tax on fortunes exceeding £10 million per person, restoring the top income tax rate to 50%, corporation tax increases, and private equity taxation reforms.
Social policy would see expanded tenant protections, strengthened workers’ rights, rising minimum wages, enhanced union power, and new levies on gig economy platforms alongside stricter regulation.
Financial Market Implications
Sterling and gilts face obvious vulnerability, particularly given the threat of increased government borrowing. However, tax increases totalling over £40 billion might provide temporary fiscal headroom.
The equity market—especially small and mid-cap stocks—faces more complex challenges. SMIDs’ rate sensitivity is well-documented, and expansive government spending would likely delay monetary easing. Our analysis shows these stocks correlate strongly with employment levels, retail activity, inflation, and export performance. Higher taxation dampening growth would pressure these key indicators simultaneously.
Rising employment costs might accelerate corporate AI adoption as businesses seek to offset mandatory wage increases, making total employment a critical metric to monitor.
The European Question
An often-overlooked consideration: every current Cabinet member who served in Parliament during 2016’s referendum supported Remain. Moves toward EU reintegration—potentially including euro adoption, mandatory for new members—could dramatically impact economic credibility and market positioning.
Market Complacency?
Current market pricing appears relaxed. Investors view these risks as partially understood and already examined. Significant domestic and foreign divestment from UK equities and gilts has occurred, widening the valuation discount relative to global assets and placing adjustment pressure on the currency.
The electoral calendar limits any new government to roughly two years—a short runway for radical change.
The immediate risk may prove manageable. But what follows a brief, radical interlude? That’s when genuine transformation—or disruption—would accelerate.
