Submitted by Bill Fernie
27th October 2026
Britain faces a difficult financial dilemma. The public wants a properly funded NHS, decent pensions, better social care, reliable public services and stronger national defence. At the same time, many households and businesses are already under pressure from the cost of living, borrowing costs and taxation.
The Government must somehow reconcile these competing demands while keeping public borrowing under control. An additional complication is demographic change: the balance between people earning taxable incomes and those needing support is shifting.
The question is not simply whether taxes should rise or spending should fall. It is whether the UK economy can generate enough income to sustain the public services and commitments people expect.
A population that is growing older
The UK is not literally running out of people. The Office for National Statistics projects that the population will grow from 69.3 million in mid-2024 to 71 million by mid-2034. However, this projected growth depends on net immigration, with deaths expected to exceed births over that period.
The population is also ageing. The number of people aged 85 and over is projected to double between 2024 and 2049, while the number of people of working age is expected to grow much more slowly.
These changes matter because older people are more likely to need healthcare, pensions and social care. Meanwhile, the number of people available to provide those services and finance them through taxation may not increase at the same rate.
That does not make pensioners a burden. They have contributed throughout their working lives, and many continue to pay tax, support families and provide unpaid care. The challenge is how to finance public commitments as the balance of the population changes.
Tax receipts are rising, but so are the demands
The Office for Budget Responsibility's March 2026 economic and fiscal outlook showed that the tax burden was expected to reach a historic high by 2030-31, at 38.5 per cent of GDP.
Much of the projected increase comes from personal taxes, including income tax and National Insurance. Frozen tax thresholds mean that as wages rise, more income becomes subject to tax or is taxed at higher rates. This process, known as fiscal drag, raises revenue without necessarily requiring a formal increase in tax rates.
But it also means that people can pay more tax even when their improvement in living standards is limited.
There is a limit to how comfortably the Government can continue down this road. Higher taxes can discourage additional work or investment, affect business decisions and leave households with less money to spend. The extent of these effects varies, and some tax increases can raise substantial revenue, but it would be unwise to assume that every increase will deliver its expected return indefinitely.
Nor does the alternative of cutting taxes automatically produce faster growth. Lower taxes may encourage activity, but they can also increase borrowing if the additional economic activity does not generate enough compensating revenue.
The rising cost of government
Ageing is only one pressure on public finances. The NHS must cope with rising demand, social care remains a longstanding challenge, and the Government must also fund education, welfare, infrastructure and defence.
Then there is the cost of servicing existing debt.
The OBR reported that annual debt interest rose from £39 billion in 2019-20 to £106 billion in 2024-25. That is money which cannot also be spent on nurses, teachers, roads or other services.
Borrowing can be justified when it supports productive investment or helps the country through an emergency. But persistent borrowing to cover routine expenditure leaves future taxpayers with an increasingly expensive obligation.
In its July 2026 fiscal sustainability report, the OBR warned that public debt could move onto an unsustainable long-term path without policy changes. Its projections are not predictions of an inevitable outcome, but they underline why governments cannot safely ignore the problem.
Is immigration the answer?
Immigration can help fill vacancies, expand the workforce and generate additional tax revenue. Younger workers arriving from abroad can also ease some immediate pressures associated with an ageing population.
However, the fiscal contribution of migration depends on employment, earnings, age and the cost of services used. Immigration cannot by itself resolve the long-term problem, particularly if population growth also increases demand for housing, transport, schools and healthcare.
The same applies to encouraging more people already living in Britain to work. Helping people with long-term health problems return to employment, improving childcare provision and making it easier for older people to continue working could all increase the number of taxpayers.
These are potentially valuable measures, but they take time and require investment. They are not substitutes for decisions about spending and taxation.
Could productivity provide the answer?
One of the most promising routes is to make the economy more productive.
If workers can produce more value in each hour, businesses can pay higher wages, profits can increase and the Government can collect more tax without necessarily raising rates.
That requires investment, better skills, reliable infrastructure, innovation and businesses that can expand. It also means avoiding policies that make it unnecessarily difficult to build, invest or recruit.
However, productivity growth cannot simply be assumed. Britain has struggled with weak productivity growth for years. If that continues, the Government will find it harder to meet growing demands for public services without increasing taxes or borrowing.
The difficult choices facing the Government
There are no painless options.
Raising taxes can bring in additional revenue but reduce disposable incomes and potentially weaken incentives. Cutting expenditure can improve the finances but risks worsening public services or reducing support for vulnerable people. Borrowing postpones some decisions but adds interest costs. Faster growth offers the prospect of a larger tax base, but cannot be guaranteed.
Pensions present a particularly difficult question. The triple lock protects the state pension against inflation and wage growth, but also increases long-term spending commitments. Changing it would affect pensioners' incomes, particularly those with little private provision. Maintaining it requires the Government to find the money elsewhere or accept a higher tax or borrowing burden.
Similar tensions exist in healthcare and social care. Delaying preventive treatment or adequate care may save money in the short term but create more expensive problems later.
The fairest approach may therefore require a mixture of reforms, with decisions taken early enough to give households and businesses time to adapt.
A question that cannot be postponed indefinitely
The Government's dilemma is not that Britain has too few people in absolute terms. It is that the country's ability to finance public spending depends on employment, earnings, productivity and the wider economy, while some of its largest spending commitments are growing.
The Budget on 28 October will be judged partly on its immediate effects on households and businesses. But the longer-term issue is just as important: can Britain fund the services and support it expects without continually increasing the burden on those who work and pay tax?
That requires more than another round of tax rises or spending cuts. It requires a credible plan to improve productivity, help more people into work, manage long-term commitments and ensure that public money delivers value.
Ultimately, the choice is not between a generous state and a low-tax economy in the abstract. It is about deciding what the country can sustainably afford, how to pay for it fairly, and what must change to make the answer more affordable in the future.