The UK's tax landscape is once again under the microscope, with Wes Streeting, a prominent figure in the Labour Party, advocating for a fundamental overhaul of how capital gains are taxed. His proposal, articulated as part of his leadership pitch, calls for equalising the tax rates on income and capital gains. This isn't merely a tweak; it's a structural realignment that, if implemented, would represent the most significant shift in capital taxation in decades, potentially increasing the tax burden on certain individuals by a substantial margin.
The Core Proposal: A Numerical Shift
At its heart, Streeting's plan is simple: treat a pound earned from selling an asset the same as a pound earned from a salary. Currently, the disparity is stark. For most assets (excluding residential property), Capital Gains Tax (CGT) is levied at 10% for basic-rate taxpayers and 20% for higher and additional-rate taxpayers. Compare this to income tax, which stands at 20% for basic, 40% for higher, and 45% for additional-rate earners. The gap is considerable.
Under Streeting's vision, a higher-rate taxpayer currently paying 20% on a capital gain could see that rate jump to 40%. For an additional-rate taxpayer, the 20% rate would become 45%. This represents a potential increase of 100% in the tax rate for basic-rate taxpayers on capital gains, and a 100% increase for higher and additional-rate taxpayers on non-property assets. For residential property, where CGT is currently 18% or 28%, the increase would be less dramatic but still significant, moving towards 40% or 45%.
To put this into historical context, the idea of aligning income and capital gains tax is not new. The Meade Committee report in 1978, for instance, explored similar concepts, albeit with different economic backdrops. What makes Streeting's proposal noteworthy now is the current political climate and the increasing focus on wealth inequality.
Scenario: What This Means for You
Let's consider a practical example:
- Scenario A: The Entrepreneur's Exit
Sarah, an entrepreneur, sells her startup for a profit of £500,000. She is an additional-rate taxpayer. Under current rules, her CGT liability (assuming business asset disposal relief doesn't apply or is exhausted) would be £100,000 (20% of £500,000). Under Streeting's proposal, this could rise to £225,000 (45% of £500,000) – an increase of £125,000. - Scenario B: The Property Investor
Mark sells a buy-to-let property, making a taxable gain of £100,000. He is a higher-rate taxpayer. Currently, his CGT liability would be £28,000 (28% of £100,000). Under the proposed changes, this could increase to £40,000 (40% of £100,000) – an additional £12,000 in tax.
The implications extend beyond individual investors. Pension funds, which are generally exempt from CGT, would likely remain so, but the broader investment landscape could shift. Will this disincentivise investment and risk-taking, or will it simply reallocate capital towards more productive, less speculative ventures? The economic models are complex, and the answer often depends on one's ideological starting point.
Step-by-Step: What to Do Right Now
As of late 2026, this remains a proposal, not enacted law. Therefore, immediate drastic action is premature. However, prudence dictates preparation.
- Review Your Portfolio: Understand your current capital gains exposure. What assets do you hold that would generate a significant gain if sold?
- Consult a Financial Advisor: Discuss potential strategies for mitigating future CGT liabilities. This could involve utilising annual CGT allowances, considering ISAs (which are CGT-exempt), or exploring pension contributions.
- Stay Informed: Political proposals can evolve rapidly. Keep abreast of developments from Labour and other parties regarding tax policy.
When Effective?
Should Labour form the next government and Streeting's proposal gain traction, any changes would typically be announced in a Budget or Autumn Statement. Historically, tax changes are often effective from the start of the next tax year (6th April) following the announcement, or sometimes immediately for specific measures. Given the scale of this potential change, a consultation period would be highly probable.
Where to Get Help
For personalised advice, consult a qualified independent financial advisor or a tax specialist. Organisations like the Low Incomes Tax Reform Group (LITRG) or Citizens Advice can offer general guidance, though specific investment and tax planning requires professional expertise.
This proposal is a clear signal of a potential shift in economic policy, moving towards a system that prioritises income from labour over capital gains. Whether it achieves its stated aims of fairness and revenue generation without unintended consequences remains a subject of considerable debate among economists and policymakers.
This is not financial advice. Seek independent financial guidance.