Capital gains tax (CGT) is a levy applied to the profit generated when an individual or entity sells an asset for more than its original purchase price. Assets subject to this tax include shares, business interests, and buy-to-let properties. The tax is calculated based on the 'uplift' in value, meaning it targets the gain rather than the total sale price.

There are mechanisms in place to adjust the tax burden. Investors can offset their tax liability by deducting losses incurred on other investments. Additionally, costs associated with enhancing or improving a property can often be subtracted from the taxable gain. As Chancellor John Healey prepares for the upcoming budget, CGT has emerged as a focal point for potential tax reform aimed at raising government revenue.

Proponents of increasing CGT argue that it is a necessary step to address fiscal deficits and ensure a broader contribution to public finances. Conversely, critics often warn that higher rates could discourage investment, reduce liquidity in markets, and potentially lead to capital flight. While the mechanics of the tax are straightforward in principle, the debate centers on the economic impact of adjusting these rates. The current discourse highlights the tension between using CGT as a revenue-raising tool and the desire to maintain an environment that encourages private investment and asset growth.