Author: Glenn

Corporation Tax rises with profit levels. Marginal relief bridges the gap, easing businesses from the 19% small profits rate to the 25% main rate.

The Corporation Tax Main Rate applies to companies with profits exceeding £250,000 and is currently set at 25%. For companies with profits up to £50,000, a Small Profit Rate (SPR) of 19% is applicable.

For profits between £50,000 and £250,000, a marginal rate of Corporation Tax is used to smooth the transition between the lower and upper limits. The lower and upper thresholds are also adjusted proportionately for short accounting periods of less than 12 months and for companies with associated entities.

Marginal relief gradually increases the effective Corporation Tax rate from 19% at profits of £50,000 to 25% at profits over £250,000. To calculate the Corporation Tax due, you multiply your profits by the main rate of 25% and subtract the marginal relief. For the current 2025 fiscal year, the marginal relief fraction is 3/200.

Once your income passes £100,000, your tax-free allowance starts to shrink. Between £100,000 and £125,140, the effective tax rate climbs to 60%, but smart planning can help.

If you earn over £100,000 in any tax year your personal allowance is gradually reduced by £1 for every £2 of adjusted net income over £100,000 irrespective of age. This means that any taxable receipt that takes your income over £100,000 will result in a reduction in personal tax allowances.

Your personal Income Tax allowance would therefore be reduced to zero if your adjusted net income is £125,140 or above. Your adjusted net income is your total taxable income before any personal allowances, less certain tax reliefs such as trading losses and certain charitable donations and pension contributions.

If your adjusted net income is likely to fall between £100,000 and £125,140 your £12,570 tax-free personal allowance is gradually tapered. This tapering continues until your allowance is fully withdrawn at an income level of £125,140. This effectively results in a 60% marginal tax rate on income between £100,000 and £125,140.

For example, if your adjusted net income is £110,000, you would lose £5,000 of your personal allowance. This additional £5,000 is taxed at 60% due to the combined effect of the 40% higher rate of Income Tax and the partial loss of the personal allowance.

If your income sits within this band you should consider what financial planning opportunities are available in order to avoid this personal allowance trap by trying to reduce your income below to £100,000. This can include giving gifts to charity, increasing pension contributions and participating in certain investment schemes.

BT has announced that it may exceed its previously stated target of cutting 40,000 jobs by 2030, as artificial intelligence (AI) becomes more central to its operations. The move comes as the company accelerates its cost-cutting programme and seeks to reorient itself in a changing telecoms landscape.

The CEO, Allison Kirkby, who took over in early 2024, has emphasised efficiency, automation, and simplification. Since then, BT has exited international operations, focused more tightly on its UK telecoms core, and made plans to separate out divisions like Openreach to unlock shareholder value.

The company is now embedding AI across key departments, including customer service, fault detection, and network operations. Automation of routine tasks is enabling BT to reduce headcount while aiming to improve efficiency and service delivery. AI-driven tools are being integrated into call centres and technical support functions, with a view to replacing human input for common troubleshooting and account management requests.

The financial rationale is clear. BT is in the midst of a £3 billion cost-reduction programme and has said that increases in employer national insurance contributions alone could cost it £100 million annually. Leveraging AI is seen as one of the few scalable methods of preserving margins while continuing to invest in infrastructure.

This restructuring has important implications across the telecoms sector. Job losses will be concentrated in customer-facing roles and back-office operations. At the same time, there is likely to be increased demand for skilled AI engineers, data analysts, and cybersecurity specialists.

Smaller providers and BT’s supply chain will need to adapt quickly. Companies offering AI systems, automation tools, and support services may find new commercial opportunities, particularly if BT’s adoption drives wider change in the sector.

The risk is that over-automation could impact customer service and employee morale. BT will need to strike a careful balance to maintain brand reputation and service levels, especially as it faces competition from a possible Vodafone–Three merger and new market entrants.

BT’s direction under Kirkby points to a leaner, more tech-led organisation. For investors, this may offer stability and long-term growth. For employees, it signals ongoing transformation and the need for reskilling. For the wider economy, it highlights how AI is moving beyond hype and directly reshaping corporate strategy and workforce planning.

Chancellor Rachel Reeves delivered her first Spending Review to Parliament last week, setting out the government’s financial priorities for the next three years. Her approach signals a shift away from austerity towards a strategy of state-backed investment, aimed at boosting growth and productivity while maintaining fiscal credibility.

The review promises a substantial increase in capital spending, with key allocations for transport infrastructure, energy security, housing, and green technology. The government pledged a multi-year uplift in NHS and defence funding, while committing to invest heavily in rail, roads, and nuclear energy projects.

Day-to-day departmental budgets are set to grow modestly in real terms, but the largest gains will be in capital allocations. The spending framework also relies on projected efficiency savings of £14 billion, which will be used to fund some of the more ambitious commitments.

For UK businesses, the implications vary by sector. Construction and engineering firms can expect opportunities from increased infrastructure spending, particularly those aligned with green objectives and transport. Firms in digital healthcare, AI, and clean energy technologies may also see a benefit from targeted support and public procurement opportunities.

Technology businesses are likely to see some growth stimulus through investment in digital public services and AI infrastructure. Similarly, the life sciences and carbon capture sectors are expected to benefit from targeted research and development initiatives.

However, the business community remains cautious. The Spending Review comes at a time when government debt is at historically high levels, and market confidence is sensitive to fiscal overreach. Some forecasters have warned of a potential shortfall of up to £20 billion in the government’s medium-term plans, which could necessitate either tax increases or tighter departmental controls later this year.

There is also concern over the government’s reliance on efficiency savings to meet its commitments. While welcomed in principle, businesses and economists alike remain sceptical about how quickly those savings can be delivered in practice.

In summary, the Spending Review presents a growth-focused and investment-driven agenda. For business, it brings opportunities, particularly in sectors aligned with the government’s infrastructure, green and digital priorities. However, there are risks associated with delivering on these promises if forecasts fall short or efficiency measures do not materialise as planned.

If one partner in a marriage or civil partnership earns under £12,570, you could save up to £252 a year, and up to £1,260 if you backdate your Marriage Allowance claim for the past four years.

The Marriage Allowance can be claimed by married couples and civil partners where one partner does not pay tax or does not pay tax above the basic rate threshold for Income Tax (i.e., one partner must earn less than the £12,570 personal allowance for 2025-26).

If claimed, the lower-earning partner can transfer up to £1,260 of their unused personal tax-free allowance to their spouse or civil partner. The transfer can only be made if the recipient (the higher-earning partner) is taxed at the basic 20% rate, which typically means they have an income between £12,571 and £50,270. For those living in Scotland, this would usually apply to an income between £12,571 and £43,662.

By using the allowance, the lower-earning partner can transfer up to £1,260 of their unused personal allowance, which could result in an annual tax saving of up to £252 for the recipient (20% of £1,260).

If you meet the eligibility criteria and have not yet claimed the allowance, you can backdate your claim for up to four years. This could provide a total tax saving of up to £1,260 and would include the tax years 2021-22, 2022-23, 2023-24, 2024-25 and the current 2025-26 tax year. Applications for the allowance can be submitted online at GOV.UK.