UK, December 2025 - The Autumn Budget 2025, delivered by Chancellor Rachel Reeves, has delivered a mixed bag of outcomes for small businesses across the UK and especially for those operating in London’s tightly competitive economy. While the government has introduced measures designed to support independent firms and high street activity, several tax and cost pressures have sparked concerns among SMEs (small and medium-sized enterprises) and business owners alike.

Business Rates: Relief vs. Rising Costs
One of the most discussed changes in the Budget was the reform of business rates. From April 2026, retail, hospitality, and leisure properties will benefit from permanently lower business rate multipliers, aimed at supporting approximately 750,000 high street premises. There will also be a three-year extension of the Small Business Rates Relief (SBRR) grace period, allowing firms expanding into additional premises to retain relief on their original site.

However, these benefits come with broader reforms that shift costs to higher-value properties and may indirectly affect the commercial property market in London. Small businesses in sectors not covered by the high street relief, such as service-based firms and professional practices, may see less direct benefit.

Labour and Employment Costs
The Autumn Budget confirmed a rise in the National Living Wage to £12.71 per hour from April 2026 — a positive step for workers but a significant increase in labour costs for small employers. This change, alongside frozen tax thresholds and higher National Insurance contributions for employers, is likely to squeeze already tight profit margins for many SMEs in London, particularly those with limited pricing power.

Tax Thresholds and Dividend Income
Income tax thresholds will remain frozen until 2031, amplifying fiscal drag for business owners who draw income through salaries or dividends. Meanwhile, dividend tax rates are set to rise by 2 percentage points from April 2026, which will reduce net income for owner-managed companies that rely on dividend extraction, a common structure among London’s professional and creative enterprises.

Capital Allowances and Investment Planning
The Government has maintained full expensing for qualifying capital expenditure, alongside introducing a 40% first-year allowance on main-rate assets from January 2026. This offers an opportunity for small firms investing in plant, machinery, or technology to accelerate tax relief and improve cash flow, though changes to writing-down allowances may affect longer-term tax planning.

Support for Skills and Apprenticeships
A notable positive for SMEs is the Budget’s commitment to fully fund apprenticeships for under-25s, lowering the barrier to hiring and training younger talent, particularly relevant for London’s competitive labour market.

Market Context & Confidence
The Autumn Budget comes amid a backdrop of economic uncertainty, including indications that the UK economy contracted ahead of the Budget announcement, underscoring the delicate environment in which London’s small businesses operate. Moreover, recent polling underscores growing public concern over the decline of local high streets and a strong desire for government support to help small firms thrive.

About Allenby Accountants
A London-based accounting firm, Allenby Accountants, offers specialised services to businesses in an array of industries, including restaurants, SMEs, and contractors. With a concentration on client-first methods and technology-driven solutions, Allenby Accountants helps businesses in achieving long-term growth, efficiency, and compliance.

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