Budget Breakdown
Budget Breakdown
The Autumn Budget 2025 is shaping up to be a politically charged fiscal event, similar to last year. Driven by the government’s need to repair public finances whilst maintaining growth and fairness narratives, this Budget is expected to rely heavily on stealth tax increases rather than any headline rate rises. We have highlighted below some of the potential measures the Chancellor, Rachel Reeves could utilise to raise revenues without overtly breaching her party’s political promises.
At the heart of these proposals lies a quiet continuation of what economists call “fiscal drag”, the ongoing freeze on personal income tax thresholds and allowances. While this may not constitute an explicit tax increase, it steadily pulls more taxpayers into higher bands as wages rise, generating billions of pounds in additional revenue. It is likely that there will be an extension of the current freeze until 2030 and there are also murmurings that these thresholds may be tweaked slightly to bring even more into higher tax brackets. Similar stealth measures in inheritance tax are anticipated, the current nil-rate band freeze at £325,000 and possible revisions to lifetime gift reliefs will also expand the scope of taxable estates as property values continue to rise.
The government’s challenge is compounded by a notable slowdown in economic growth. The Treasury’s self-imposed fiscal rules require the Chancellor to balance day-to-day spending within the economic cycle. Yet, borrowing has risen faster than expected, and tax receipts have fallen short of projections. These constraints make tax rises, particularly those perceived as progressive, more probable. Among the most significant of these is more National Insurance reform, an area where a subtle movement can have substantial impact.
The most discussed proposal involves extending National Insurance Contributions (NIC) to rental income earned by individuals and partnerships. Currently, landlords do not pay NIC on rental profits, but the introduction of such a levy would mark a significant shift. This would effectively treat property letting as a trade for NIC purposes, bringing in new revenues while capturing Britain’s growing private rental sector.
A second area of potential reform concerns partnership income. Under existing rules, partners in Limited Liability Partnerships (LLPs) pay Class 4 NIC but not employer’s NIC, which applies to employees. Introducing a NIC charge on partnership earnings would align partners in LLPs to Directors in Limited Companies, who also have limited liability, and increase tax revenues. These rules could also be extended to dividends received also.
Beyond personal taxation, several business-focused measures appear on the horizon. The Chancellor may extend 100% first-year capital allowances which is available for plant and machinery to intellectual property such as software, licences, and patents. This pro-growth initiative aligns with industrial policy goals and is expected to be announced as part of a wider productivity agenda. Similarly, the Enterprise Management Incentive (EMI) share scheme could be expanded, raising thresholds so that more scale-up businesses can reward key staff tax-efficiently and help retention for longer periods.
Taxation of wealth and investment income remains another focal point. Rumours surrounding a review into capital gains tax (CGT) on residential property, potentially capping or tapering the exemption on gains from high-value homes. The new threshold between £500,000 and £1.5 million is under discussion, coupled with a possible “Mansion Tax” on luxury properties above a certain value.
Environmental and digital reforms are also expected to feature prominently. The government is likely to confirm the rollout of mandatory e-invoicing as part of its VAT digitisation strategy, a significant compliance shift for businesses. The de minimis exemption for low-value import consignments (currently £135) may also be scrapped, targeting overseas e-commerce sellers who compete unfairly with UK-based retailers.
Ultimately, the Autumn Budget 2025 is set against a backdrop of economic fragility and political constraint. The Chancellor’s strategy appears to rely on pragmatic tax design such as incremental changes, technical adjustments, and administrative refinements that collectively raise substantial revenues without the drama of overt tax hikes. Our team will be reporting live on the day, Wednesday 26th November and will be updating our predictions as ‘leaks’ arise on our social media channels.