UK Taxes
How Income Tax Works in the UK
Income tax is the UK government's largest source of revenue. It works on a progressive basis – meaning you only pay higher rates on the portion of income that falls into each band, not on your entire earnings. For the 2025/26 tax year in England, Wales and Northern Ireland, the bands are as follows:
Personal Allowance: £0 – £12,570 → 0% (tax-free);
Basic rate: £12,571 – £50,270 → 20%;
Higher rate: £50,271 – £125,140 → 40%;
Additional rate: Over £125,140 → 45%.
The personal allowance and all income tax thresholds are frozen until April 2028 (and potentially until 2031). This means more people are gradually pulled into higher tax bands as wages rise – a phenomenon known as "fiscal drag."
National Insurance Contributions
National Insurance is a separate charge on earnings that funds state pensions and certain benefits. For the 2025/26 tax year, employees pay 8% on earnings between £12,570 and £50,270 per year, and 2% on earnings above that. Employers pay 15% on earnings above the secondary threshold of £96 per week – a rate that increased from 13.8% following the Autumn Budget 2024.
If you earn £35,000 a year, your employee NIC bill is roughly: (£35,000 – £12,570) × 8% = £1,794 per year. Your employer also pays around: (£35,000 – £4,992) × 15% = £4,501 per year on top of your salary.
Corporation Tax for Businesses
Corporation tax applies to the profits of UK limited companies. Unlike the old flat rate, the system now has two tiers:
Small profits rate: 19% for companies with profits up to £50,000.
Main rate: 25% for companies with profits over £250,000.
Marginal relief: For profits between £50,001 and £250,000, the effective rate gradually increases from 19% to 25%.
If your company's profits are close to the £50,000 threshold, it may be worth reviewing allowable expenses and capital allowances to ensure you're claiming everything you can. Small differences in taxable profit can significantly affect your effective tax rate.
VAT: The Tax on Spending
Value Added Tax is charged on most goods and services in the UK. There are three main rates:
Standard rate (20%): Applies to most goods and services, including electronics, clothing, restaurant meals, and professional services.
Reduced rate (5%): Covers domestic energy (gas and electricity), children's car seats, and certain energy-saving installations.
Zero rate (0%): Applies to essentials such as most food, children's clothing, books, newspapers, and public transport.
Some supplies are entirely VAT-exempt – for example financial services, insurance, and postage stamps. The key difference between zero-rated and exempt is that businesses selling zero-rated goods can still reclaim VAT on their purchases, whereas those selling only exempt goods cannot.
Businesses must register for VAT once their taxable turnover exceeds £90,000 over a rolling 12-month period. Voluntary registration is also possible for businesses below this threshold.
Property and Wealth Taxes
The UK applies several taxes to property ownership and wealth transfer.
Council Tax is an annual charge on residential properties, set by local authorities. The amount depends on the property's valuation band and where it is located.
Stamp Duty Land Tax (SDLT) is payable when you buy property in England or Northern Ireland above certain price thresholds. Scotland and Wales have their own equivalents (LBTT and LTT respectively).
Inheritance Tax (IHT) is charged at 40% on estates above the nil-rate band of £325,000. An additional residence nil-rate band of £175,000 applies when the deceased's home is passed to direct descendants – meaning an individual can potentially pass on up to £500,000 tax-free. Married couples and civil partners can combine their allowances for a potential £1 million tax-free threshold.
The IHT thresholds are frozen until at least April 2030. With rising property prices, more estates are being drawn into the inheritance tax net each year. From April 2027, inherited pension pots will also be included in estate valuations for IHT purposes.
Capital Gains Tax
Capital Gains Tax is charged on the profit you make when selling or disposing of an asset that has increased in value. Your main home is generally exempt (known as Private Residence Relief).
For 2025/26, the rates are 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers. The annual exempt amount is just £3,000 – meaning only gains above this figure are taxable.
International Tax Considerations
Businesses and individuals operating across borders face additional complexity. The UK has an extensive network of double taxation treaties with other countries, which help prevent the same income being taxed twice. Companies with international operations should also be aware of rules around controlled foreign companies and transfer pricing, designed to ensure profits are taxed in the right jurisdiction.
Strategic Tax Planning Matters:
The UK tax system offers genuine opportunities for those who plan ahead. From pension contributions that reduce taxable income, to capital allowances for businesses and ISAs for investors, understanding the available reliefs can make a significant difference. Given the pace of legislative change – frozen thresholds, shifting CGT rates, upcoming IHT pension reforms – regular reviews of your tax position are well worth the effort.
Conclusion: The Need for Strategic Tax Planning
The UK’s tax system, while comprehensive, presents significant opportunities and challenges for both individuals and businesses. Understanding the nuances of income, corporate, and consumption taxes allows taxpayers to optimize their financial strategies and ensure compliance with the law. For businesses, staying abreast of available allowances and deductions can significantly impact profitability, while for individuals, awareness of tax bands and wealth taxes is crucial for long-term financial planning. In a complex fiscal environment, professional advice and strategic planning remain key to navigating the system efficiently.
