The Annual Exempt Amount (AEA) is a crucial element of Capital Gains Tax (CGT) in the UK. It allows individuals to realize a certain amount of capital gains tax-free each year, thereby reducing their overall CGT liability. The AEA plays a key role in managing how much CGT is due when an individual sells assets such as property, stocks, or business assets. Understanding the AEA and how it applies to your financial situation can provide significant tax savings and help with tax planning.
1. What Is the AEA?
The AEA is the maximum amount of capital gains that an individual can make in a tax year without having to pay CGT. The 2024/2025 tax year AEA stands at £6,000. If your total capital gains in that year do not exceed this amount, you will not owe any CGT. The AEA acts as a personal allowance for capital gains, similar to the personal allowance for income tax, which can help reduce the tax burden on smaller gains.
2. How Does the AEA Work?
When you dispose of an asset—whether by selling, giving away, or exchanging it—the capital gain is the difference between the selling price and the cost of acquiring the asset. If the total gain is below the AEA for the year, you do not have to pay CGT. If your gains exceed the AEA, CGT is applied to the amount above the exemption.
For example, if you sell shares and make a capital gain of £10,000 in a year, you can use the AEA of £6,000 to offset the tax. You will only be liable to pay CGT on the remaining £4,000 of gain.
3. Who Is Eligible for the AEA?
The AEA is available to individuals who are UK residents, including:
- Sole traders or self-employed individuals.
- Investors who are not operating through a company.
- Personal representatives or executors of a deceased person’s estate may also benefit from the AEA, though special rules apply in these cases.
- Trusts typically have a lower exempt amount compared to individuals.

It’s important to note that companies, partnerships, and businesses are not eligible for the AEA. Instead, these entities are subject to Corporation Tax on capital gains.
4. What Are the Rates of CGT?
Once you exceed the AEA, the rate at which you pay CGT depends on your total taxable income and the type of asset you are selling:
- Basic Rate taxpayers: 10% on most capital gains, but 18% on gains from the sale of residential property.
- Higher and Additional Rate taxpayers: 20% on most capital gains, but 28% on residential property.
- Business Asset Disposal Relief (formerly Entrepreneurs’ Relief): If you qualify, you may pay only 10% on the sale of qualifying business assets, such as shares in a trading company.
The AEA helps individuals avoid CGT on small-scale gains, but once gains exceed this threshold, they are taxed at the above rates, which vary depending on your overall income and the type of asset.
5. Exemptions and Reliefs That Work with the AEA
In addition to the AEA, there are several exemptions and reliefs that can reduce or eliminate CGT:
- Private Residence Relief (PRR): If you sell your primary residence, any gain from that sale is usually exempt from CGT, provided certain conditions are met.
- Business Asset Disposal Relief (formerly Entrepreneurs’ Relief): This relief can reduce the CGT rate to 10% on the sale of certain business assets, provided the business owner meets the qualifying criteria.
- Investors’ Relief: Investors in certain shares may benefit from reduced CGT rates, allowing them to pay 10% on gains rather than the higher rates.
- Gift Relief: If you gift an asset to someone, such as a family member, you may qualify for Gift Relief, which may allow you to defer CGT on the gain until the recipient disposes of the asset.
6. What Happens If Your Gains Exceed the AEA?
If your total capital gains exceed the AEA for the tax year, you will be liable to pay CGT on the amount that exceeds the exemption. For example, if your total capital gains are £10,000 and the AEA is £6,000, you would pay CGT on the remaining £4,000.
However, you may be able to offset losses from previous years or use reliefs to reduce your taxable gains. Additionally, certain strategies, such as gifting assets or transferring assets to a spouse or civil partner, can help you minimize the tax due on gains.
7. How Can Losses Affect the AEA?
If you make a capital loss in a particular tax year (i.e., you sell an asset for less than its original purchase price), you can offset that loss against any capital gains made in the same year. If there is no gain to offset the loss, you can carry it forward to reduce future capital gains, which may help lower CGT in subsequent years.
If your total capital gains in a tax year are lower than the AEA, you will not owe any CGT, but losses can still be used strategically in the future. For example, you can use losses from one tax year to offset gains made in the following year.
8. Transfers Between Spouses or Civil Partners
Transfers of assets between spouses or civil partners are generally exempt from CGT. This means that you can transfer assets to your spouse or partner, and they will inherit the original cost of the asset (the “base cost”). This can be particularly useful if one spouse is in a lower tax band, as it allows the transfer of assets to minimize overall tax liability.
9. CGT and Gifts
When you gift an asset to someone, you are treated as having made a disposal of the asset. For CGT purposes, the gift is treated the same as a sale, and you are liable for CGT on any gain. However, there are exemptions, such as for gifts to spouses, charities, or relatives.
If the gift is exempt from CGT, such as in the case of gifts between spouses or charitable donations, the AEA may still apply to any gains not covered by the exemptions.

10. Paying CGT
If your total capital gains exceed the AEA, you must report them to HMRC. CGT is generally paid when you submit your Self-Assessment tax return, which is due by 31 January following the end of the tax year (e.g., by January 31, 2025, for gains made in the 2024/2025 tax year).
If you are liable for CGT on an asset sale, you will need to pay the tax by the Self-Assessment deadline. Failing to report your gains or pay the tax on time could result in penalties.
Conclusion
The Annual Exempt Amount (AEA) for Capital Gains Tax (CGT) is an important tax relief for individuals in the UK, allowing them to make a certain amount of capital gains tax-free each year. For the 2024/2025 tax year, the AEA is £6,000, and any gains above this threshold are subject to CGT at the applicable rate. Understanding the AEA and how it interacts with other exemptions and reliefs, such as Business Asset Disposal Relief and Private Residence Relief, can help individuals manage their CGT liability effectively. Additionally, careful planning around losses, gifts, and asset transfers can further reduce the amount of CGT you owe. By leveraging the AEA and other tax reliefs, you can make the most of your capital gains and ensure you’re not paying more tax than necessary.