Capital Gains Tax: What You Need to Know in 2026 | UK Tax Guide (2026)

Capital gains tax (CGT) is a topic that often gets overlooked, but with the recent surge in government revenue from this tax, it's time to take a closer look. Personally, I think the fact that CGT has become such a significant source of income for the government is both interesting and concerning. It's a clear indication of how the tax system is evolving, and it's worth exploring the implications of this trend. The rise in CGT revenue is particularly notable when compared to previous years. In the 2025-26 tax year, the government collected a staggering £24.3 billion in CGT, up from £13.7 billion the previous year and more than three times the amount raised in 2017-18. This significant increase is not just a one-off, as the Office for Budget Responsibility predicts that CGT revenue will continue to grow, reaching £35 billion by 2030-31. What makes this trend even more intriguing is the fact that CGT is not just affecting the wealthy. A series of changes to the way CGT is calculated has resulted in more people being pulled into the net, and not just those at the top of the income ladder. This shift in the tax burden is a significant development, and it's worth considering the implications for different segments of society. One of the key factors driving this trend is the way CGT is calculated. The tax is levied on the profit made from selling assets that have increased in value, and the rules surrounding this have become less generous in recent years. For example, the annual tax-free allowance for CGT has been slashed from £12,300 in 2022-23 to £3,000 in the current tax year. This reduction in the allowance means that more people are now subject to CGT, and it's a trend that's likely to continue. What makes this situation particularly interesting is the fact that the government is now collecting more revenue from CGT than it is from income tax. This is a significant shift, and it raises questions about the fairness of the tax system. The former health secretary, Wes Streeting, has proposed a wealth tax that would equalize CGT with income tax, which would mean higher bills for many people. This proposal is a reflection of the growing concern about the impact of CGT on different segments of society. One of the key ways to reduce CGT liability is to make full use of an Individual Savings Account (ISA) allowance. UK residents aged 18 and over can invest up to £20,000 each per tax year in an ISA, and parents can fund a junior ISA with up to £9,000 per child per tax year. This means that a family of four can invest a total of £58,000 in ISAs each year. This is a smart strategy, as it allows individuals to invest in assets without triggering CGT. However, it's important to note that this strategy is not without its limitations. For those who hold investments outside of an ISA, selling can trigger a CGT bill. To mitigate this, investors can offset losses against any gains that are taxable, either in the current year or in later years. This is a clever strategy, but it requires careful planning and a deep understanding of the tax rules. Another way to reduce CGT liability is to reduce taxable income. This can be achieved by paying into a pension or making charitable donations. For example, if selling an asset would push an individual into a higher tax band, making a pension contribution for the amount over the threshold could mean paying 18% CGT instead of 24%. This is a smart strategy, as it not only reduces CGT liability but also boosts retirement savings. Finally, it's worth considering the implications of inheriting an asset. When someone inherits an asset, inheritance tax is usually paid by the estate of the person who died. However, if the asset is later sold or given away, CGT may be due. This is a complex area, and it's important to seek professional advice to ensure that all tax obligations are met. In conclusion, the rise in CGT revenue is a significant development that has implications for different segments of society. The fact that more people are being pulled into the CGT net, and that the government is collecting more revenue from CGT than it is from income tax, is a clear indication of how the tax system is evolving. It's a trend that's worth watching, and it's important to consider the implications for individuals and society as a whole. Personally, I think this trend raises important questions about the fairness of the tax system, and it's a topic that deserves further exploration and discussion.

Capital Gains Tax: What You Need to Know in 2026 | UK Tax Guide (2026)

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