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CGT Allowance Slashed to £3,000 — More People Are Being Dragged Into Paying Capital Gains Tax

The Capital Gains Tax annual exempt amount dropped to £3,000 in April 2024 and remains there in 2026. If you've sold shares, a second property, or crypto, you may now owe CGT for the first time.

1 June 2026·6 min read

The Capital Gains Tax (CGT) annual exempt amount has been slashed from £12,300 (in 2022/23) to just £3,000 — a 76% reduction in three years. The impact is profound: millions of people who previously had gains below the threshold and owed nothing now face a CGT bill.

What Is CGT and Who Pays It?

CGT is charged on gains (profits) when you sell or dispose of certain assets: shares, property (not your main home), cryptocurrency, business assets, and more. You pay CGT on your gain, not the total sale proceeds.

The 2026 CGT Rates

Asset TypeBasic Rate TaxpayerHigher/Additional Rate Taxpayer
Shares and other assets18%24%
Residential property (not main home)18%24%
Business assets (BADR)10%10%

The £3,000 Allowance in Practice

If you sold shares worth £20,000 that cost you £16,500, your gain is £3,500. Under the old £12,300 allowance, you'd pay zero CGT. Under the current £3,000 allowance, £500 is taxable. As a higher rate taxpayer, you'd owe £120 (24% × £500).

This seems small — but for investors with diversified portfolios or those who sell regularly, the cumulative impact of lower-allowance reporting obligations is significant.

How to Reduce CGT Legally

  • Bed and ISA: Sell shares, take the £3,000 exempt gain, then repurchase the same shares inside an ISA. Future gains inside the ISA are tax-free.
  • Bed and Spouse: Transfer assets to a spouse at no gain/no loss, then sell from their allowance.
  • Spread disposal over tax years: Sell in tranches across multiple tax years to use multiple allowances.
  • Capital losses: Offset current year capital gains with any capital losses from the same or previous years.

Frequently Asked Questions

Do I have to report CGT if my gain is under £3,000?

You still need to report disposals to HMRC if your total proceeds exceed £50,000 in the year (4 × the annual exempt amount) — even if the gain itself is under the threshold. This is done through Self Assessment or HMRC's real-time CGT reporting service.

What about selling crypto?

Cryptocurrency is treated as a capital asset by HMRC. Each disposal (sale, swap, or use to pay for goods) is a CGT event. With the £3,000 allowance, even modest crypto profits now trigger a tax bill for many investors.

Calculate your Capital Gains Tax with our CGT Calculator.

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