The UK Budget 2025 tax reform introduces a wide range of fiscal and regulatory changes that will reshape the country’s economic and business landscape starting from April 2026. With slower GDP expectations, persistent inflationary pressure and rising public spending requirements, the government is implementing a combination of tax freezes, targeted increases and new sector-specific duties.
Below is a structured overview based on the key categories presented in the Budget.
Economic Outlook
The UK’s GDP forecast has been revised downward to 1.4% in 2026 (previously 1.9%), settling at around 1.5% for the rest of the decade.
Inflation remains elevated, expected at 3.5% this year and 2.5% next year, driven largely by wage growth and rising food costs.
This macro-environment frames the context for the entire UK Budget 2025 tax reform.
Income Tax & National Insurance
Income tax and national insurance thresholds will be frozen until 2028, extending the fiscal drag introduced by the previous government.
This will gradually shift more taxpayers into higher brackets.
However, basic rates of:
- Income Tax
- VAT
- National Insurance
will not increase, maintaining the manifesto commitment not to raise taxes on working individuals.
Property, Dividend & Savings Income
The Budget introduces increases of two percentage points on:
- tax on property income
- dividend income
- savings income
This aims to broaden the contribution base without adjusting core income tax rates.
Mansion Tax (High-Value Property Surcharge)
A new annual surcharge applies to high-value residential properties:
- £2,500 per year for properties worth more than £2m
- £7,500 per year for properties worth more than £5m
Pensions
From 2029, salary-sacrifice pension contributions will be capped at £2,000 annually.
Amounts above this threshold will be taxed as regular employee contributions.
ISA Reform
From April 2027:
- ISA allowance will be reduced to £12,000 (from £20,000).
- A consultation will begin in 2026 for a new simplified ISA targeted at first-time homebuyers.
Capital Gains – Employee Ownership Trusts
Capital gains tax relief on business sales to Employee Ownership Trusts will be:
- reduced from 100% to 50%
Inheritance Tax
The freeze on inheritance-tax allowances has been extended, bringing more estates within taxable thresholds over time.
National Minimum Wage
From April 2026:
- 18–20 year olds: minimum wage rises from £10 to £10.85
- Living Wage: rises from £12.21 to £12.71
Tobacco & Alcohol Duty
- Tobacco duty → increases 2 percentage points above RPI
- Alcohol duty → increases in line with RPI
“Milkshake Tax”
Dairy-based sugary drinks, including milkshakes, will be subject to the existing sugar tax regime.
Fuel Duty
Fuel duty remains frozen until September 2026, extending a freeze that has been in place since 2010–11.
After this period, the rate will rise in line with inflation.
Electric Vehicle Duty
A new per-mile duty will apply:
- 3p per mile → electric cars
- 1.5p per mile → plug-in hybrids
The measure intends to support increased road-maintenance funding.
Welfare, Benefits & Apprenticeships
- Reforms to Universal Credit will help an estimated 15,000 individuals return to work.
- Around £300m in subsidies for Motability vehicles will be phased out.
- The two-child benefit cap will be abolished from April 2026.
- Apprenticeships will become fully funded for SMEs.
Gambling Duty
From April 2026:
- Remote Gaming Duty will rise from 21% to 40%
- A new online-only General Betting Duty rate will apply to sports-betting operators.
Business Taxes
The Budget introduces several measures to support entrepreneurship and investment:
- Expansion of entrepreneurial investment schemes
- Three-year stamp duty exemption for UK stock-market listings
- 40% allowance to write off upfront investment costs
- Lower business rates for 750,000 retail, hospitality and leisure companies
- Higher property-tax rates for large warehouse operators
- £4.3bn in relief for businesses facing substantial increases
All parcels entering the UK will now be subject to customs duty, preventing online retailers from undercutting high street stores.
Transport & Mobility
- Luxury cars removed from Motability scheme
- Student loan repayment threshold frozen for three years
- Ride-hailing platforms (Uber, Bolt) will face a new “taxi tax”
- Rail fares frozen nationwide (first time in 30 years)
Conclusion
The UK Budget 2025 tax reform represents one of the most wide-ranging fiscal updates of the decade.
It increases taxation on wealth, property, savings and digital sectors while maintaining stability for basic income tax and national insurance.
For businesses — UK-based or international — this Budget requires a careful reassessment of:
- tax exposure
- payroll planning
- investment strategy
- market entry or expansion plans
Kelmer assists companies in navigating UK regulatory and tax frameworks through compliance support, business structuring and cross-border advisory.
You can explore more about our UK-focused support services here.