7 Shocking UK Tax Changes For 2026: The £1 Million Cap That Will Redefine Family Wealth

Contents
As of December 2025, the UK is bracing for one of the most significant overhauls of its tax landscape in decades, with a raft of changes scheduled to take effect from the start of the new tax year in April 2026. These are not minor adjustments; they represent fundamental shifts in how wealth is transferred, how investment profits are taxed, and how middle-income earners are silently squeezed by 'fiscal drag.' The changes, cemented by recent government announcements and the progressing Finance Bill, demand immediate attention from business owners, farmers, high-net-worth individuals, and everyday taxpayers alike, as strategic planning now is essential to mitigate the financial impact of these impending reforms. The core intention behind many of the new measures is to broaden the tax base and generate substantial revenue for the Exchequer, often by targeting historically generous reliefs and aligning various tax treatments. From the controversial introduction of a major cap on Inheritance Tax (IHT) reliefs to a significant increase in Capital Gains Tax (CGT) rates for certain assets, the 2026 tax year promises a challenging environment for wealth preservation and financial planning across the United Kingdom.

The Inheritance Tax Earthquake: The New £1 Million Relief Cap

The single most impactful change coming in April 2026 is a fundamental reform to Inheritance Tax (IHT) that directly targets the transfer of wealth through family businesses and agricultural holdings.

The £1 Million Cap on APR and BPR

The government is introducing a £1 million cap on the combined value of assets eligible for 100% Agricultural Property Relief (APR) and Business Property Relief (BPR). * What it means: For decades, these reliefs have allowed family-owned businesses, farms, and certain trading company shares to be passed on free of IHT. * The Impact: From April 6, 2026, any value of qualifying assets above the £1 million threshold will no longer be eligible for 100% relief and will instead be subject to the standard 40% Inheritance Tax rate. * Target Entities: This change is a seismic event for family farms, rural estates, and small to medium-sized enterprises (SMEs), forcing a complete reassessment of succession planning and wills. This reform is expected to generate significant revenue for the Treasury and marks a clear shift away from the previous, more lenient approach to intergenerational wealth transfer.

Capital Gains and Investment: Rates Are Soaring

The 2026 tax year will see a coordinated effort to raise revenue from investment profits and carried interest, making the disposal of assets significantly more expensive for some.

1. Capital Gains Tax (CGT) Rate Increase

A major change is the planned increase in the lower rate of Capital Gains Tax (CGT). * The New Rate: The lower rate of CGT is set to increase from 14% to 18% from 6 April 2026. * Context: This increase applies to gains on the disposal of assets (excluding residential property) that fall within the basic rate income tax band. * Annual Allowance: The CGT Annual Exempt Amount has already been drastically cut to £3,000 for the 2025-2026 tax year, meaning more people will pay CGT on smaller gains.

2. Investors’ Relief and Incorporation Relief Curtailed

Two other key CGT reliefs are being targeted: * Investors’ Relief: The lifetime limit for Investors’ Relief, which provides a lower 10% CGT rate on certain share disposals, is being reduced significantly from £10 million to just £1 million. * Incorporation Relief: From April 2026, Incorporation Relief—which currently allows a sole trader or partnership to transfer business assets to a company without an immediate CGT charge—will no longer apply automatically. It will require a specific claim and meet stricter conditions, adding complexity and potential tax liability to a common business restructuring move.

3. Carried Interest Taxed as Income

A highly anticipated and controversial change is the reform of the Carried Interest tax regime. * The Shift: The UK Government plans to bring carried interest—the profit share received by private equity and venture capital fund managers—within the Income Tax regime from April 2026. * The Effect: This means carried interest, which was previously often taxed at lower CGT rates, will now be subject to much higher Income Tax rates, potentially reaching the Additional Rate of 45%. This measure is specifically aimed at the financial services sector and private equity firms in the City of London.

The Hidden Squeeze: Income, Dividends, and NI

While the headline changes focus on wealth and capital, everyday taxpayers will face a persistent squeeze due to frozen thresholds and rising dividend taxes.

4. The Frozen Income Tax Thresholds (Fiscal Drag)

The biggest hidden tax rise for millions of UK workers is the continuation of the freeze on personal tax thresholds. * The Freeze: The Personal Allowance and the Higher Rate Threshold (HRT) have been frozen, with some government announcements confirming this freeze is now extended until April 2028, or even later according to some projections. * What is Fiscal Drag? As wages rise due to inflation, more people are pushed into higher tax bands (Basic Rate, Higher Rate, and Additional Rate) without a corresponding increase in their real income. This phenomenon, known as fiscal drag, is a major revenue generator for the HMRC and affects millions of taxpayers annually.

5. Dividend Tax Rates Will Rise

Investors and company directors who take income via dividends will face a higher tax burden. * The Increase: Dividend tax rates will rise by 2% for both Basic-rate and Higher-rate taxpayers from April 2026. * Allowance: The Dividend Allowance remains at a very low £500, meaning almost all dividend income above this minimal amount is subject to the higher tax rates. * Impact on Small Businesses: This disproportionately affects small business owners and contractors who typically pay themselves a small salary and the rest in dividends.

6. National Insurance (NI) Changes for Expats

The rules for voluntary National Insurance contributions for individuals working abroad are changing. * Class 2 NI Restriction: From 6 April 2026, individuals will no longer be able to pay voluntary Class 2 National Insurance contributions for periods spent working abroad. * Focus: This change impacts the ability of UK citizens living overseas to maintain their State Pension record by making voluntary payments. They will only be able to pay voluntary Class 3 contributions, which are generally more expensive.

7. Corporate Tax and Benefits in Kind

While not a personal tax, businesses must note that the rate for Class 1A National Insurance Contributions (NICs) on expenses and benefits for the 2025-2026 tax year is set at 15%. This impacts the cost of providing benefits, such as company cars or health insurance, to employees.

Strategic Planning is Now Critical

The combination of the £1 million IHT cap, the increase in CGT rates, and the persistent fiscal drag from frozen Income Tax thresholds makes the 2026 tax year a watershed moment. Financial planning is no longer optional; it is a necessity. * For Business Owners: Review your succession plan immediately. Utilise the remaining period before April 2026 to potentially restructure your business or farm to minimise the impact of the new IHT cap on APR and BPR. * For Investors: Consider accelerating the disposal of assets before the CGT rate rises to 18%. Maximise the use of your remaining CGT Annual Exempt Amount and ISA allowances. * For All Taxpayers: The effective tax rate on your income is rising due to the freeze. Review your pension contributions and other tax-efficient savings vehicles to counteract the effects of fiscal drag and protect your wealth from the growing tax burden. The time to act on these impending UK tax changes is now, not when the new rules take effect.
7 Shocking UK Tax Changes for 2026: The £1 Million Cap That Will Redefine Family Wealth
uk tax changes 2026
uk tax changes 2026

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