The 2025 UK Budget: For Whom the Bell Tolls

 

Torsten Bell MP

“send not to know

For whom the bell tolls,

It tolls for thee.”

(John Donne)

To continue, and slightly modify, the John Donne reference, no investment portfolio is an island, entire of itself. Context matters.

In the UK this week of November 2025, the annual taxation and public expenditure statement, the Budget, to be given in the House of Commons on Wednesday 26^th November, has been widely trailed to include both an increase in the overall level of taxation, and a significant shift in its burden towards levies on capital and financial assets, rather than labour – hardly surprising for a Labour government.

In a previous blog post I queried whether the Chancellor of the Exchequer, Rachel Reeves, was the most important financial actor shaping the investment landscape. Recent pronouncements leave little doubt that the Budget is now being decisively shaped by pensions minister Torsten Bell MP, recently detailed to ‘assist’ with Budget preparations, and others with a background in the centre-left think-tank the Resolution Foundation.

 

Many of the Resolution Foundation’s policy ideas - as expressed in a September 2025 paper Call of Duties - are now accepted as orthodoxy, the only question being the scale and timing of their implementation. 

Not only do such measures align a beleaguered front bench with increasingly restive backbenchers and capitalism-sceptic Labour party members, they chime in with the UK Treasury's single-minded focus on plugging the fiscal deficit.

Thus, from the next tax year starting April 2026 it is highly likely that:

- Dividend tax and capital gains tax rates will be increased.

- ISA investment rules will be modified, to at the very least channel investments towards UK-listed entities.

- Estates on death, gifts, and pension-related savings will be taxed in higher and most likely more complicated ways.

The investment implications of the Budget of course go well beyond micro-taxation regulations. The extent to which the bond and foreign exchange markets perceive sufficient fiscal consolidation will determine both the near-term and longer-term rates of interest, with potentially cross-cutting impacts on sectors with differential interest rate sensitivity.

It's possible to imagine a scenario where interest rates come down more rapidly than currently envisaged, broadly favouring many equities, so stock market returns could be enhanced, but the post-tax and post-inflation returns investors, especially UK retail investors, reap thereafter may be limited.

More tellingly, the long-term direction of travel of future Budgets will be set: higher taxes on capital will be the first source looked to for higher tax receipts.

Rachel Reeves’s successors as UK Chancellor will be back for more many years into the future, particularly given the growing popularity of the Green Party in the UK which increases the possibility of a long-term centre-left Red-Green coalition being the dominant governing force for decades hence.