With the UK's Capital Gains Tax annual exempt amount reduced to £3,000 — down from £12,300 just three years ago — and rates now sitting at 18% and 24% following the Autumn Budget 2024, more taxpayers than ever are exposed to a CGT liability when selling assets.

The good news? There are several entirely legal, HMRC-approved strategies you can use to reduce or even eliminate your CGT bill. This guide covers the eight most effective approaches for individuals in the 2025/26 and 2026/27 tax years.

🔢 Before you read on: Use our free UK Capital Gains Tax Calculator to find out your current CGT liability — then use this guide to reduce it.

1. Use Your Annual Exempt Amount (£3,000)

Every UK resident receives an annual Capital Gains Tax exemption — £3,000 for 2025/26 and 2026/27. This allowance cannot be carried forward, so if you don't use it, you lose it.

📝 [Your Content Goes Here] This section should explain how to time asset disposals to use the annual exempt amount before 5 April each year. Include examples of how a couple can double their effective allowance to £6,000 by each disposing of separately held assets, and practical tips for investors with share portfolios.
Key figures: The £3,000 allowance applies per individual, per tax year. If you are married or in a civil partnership, you and your partner each have a separate allowance — a combined £6,000 tax-free gain is available between you.

2. Transfer Assets to Your Spouse or Civil Partner

Transfers of assets between spouses and civil partners (who are living together) are treated as a no-gain, no-loss disposal for CGT purposes. This creates a powerful planning opportunity.

📝 [Your Content Goes Here] Explain the mechanics of spousal transfers — how HMRC treats them, what "living together" means for CGT purposes, and how a higher-rate taxpayer can transfer an asset to a basic-rate spouse to reduce the overall tax rate from 24% to 18%. Include a worked example showing the tax saving on a £50,000 gain.

This strategy is especially powerful when one spouse is a basic rate taxpayer (with income below £50,270 including the personal allowance). Their gains would be taxed at 18% rather than 24%, creating an immediate tax saving.

3. Maximise Your ISA Allowance (Bed & ISA)

A Stocks and Shares ISA is completely exempt from Capital Gains Tax. Any growth on investments inside an ISA — no matter how large — is never subject to CGT.

📝 [Your Content Goes Here] Explain the "Bed and ISA" strategy in detail: selling assets held outside an ISA and repurchasing them inside an ISA wrapper. Include the 30-day rule warning (but note it doesn't apply to ISAs since the repurchase is in a different wrapper), the annual ISA limit (£20,000 for 2025/26), and how to execute the strategy with a worked example showing long-term CGT savings.
⚠️ Important: When you sell to move into an ISA, you may crystallise a taxable gain in the current tax year. Use our CGT calculator to check your liability before executing this strategy.

4. Offset Capital Losses Against Gains

If you have assets that have fallen in value, you can sell them in the same tax year to offset losses against your gains. You only pay CGT on your net gain after losses are deducted.

📝 [Your Content Goes Here] Cover the rules for allowable losses: how current-year losses are applied before carried-forward losses, the "Bed and Breakfasting" 30-day rule that prevents immediately re-buying the same shares, the "same day" and "30-day" matching rules, and how to report losses to HMRC to preserve them for future years. Include a worked example with both gains and losses.

5. Carry Forward Losses from Previous Years

Capital losses don't expire immediately. You can carry them forward to offset against gains in future tax years — indefinitely, as long as you report them to HMRC in time.

📝 [Your Content Goes Here] Explain the 4-year rule for reporting losses to HMRC, how carried-forward losses are applied (after current-year losses, and only to the extent needed to reduce gains to the annual exempt amount), and the practical steps for claiming carried-forward losses in a Self Assessment tax return.

6. Increase Pension Contributions

Your CGT rate depends on which income tax band you fall into. Increasing your pension contributions reduces your taxable income, which can push you into — or further within — the basic rate band, reducing your CGT rate from 24% to 18%.

📝 [Your Content Goes Here] Show a detailed worked example of how a taxpayer with income of £55,000 and a £20,000 capital gain could make pension contributions to reduce their effective income, keeping more of the gain taxable at 18% rather than 24%. Cover the annual pension allowance (£60,000 for 2025/26) and the interaction with CGT bands.

7. Business Asset Disposal Relief (BADR)

If you are selling a qualifying business or business assets, you may be eligible for Business Asset Disposal Relief (formerly Entrepreneurs' Relief). This reduces your CGT rate to 14% in 2025/26 (rising to 18% in 2026/27).

📝 [Your Content Goes Here] Cover the BADR eligibility criteria in detail: the 2-year ownership and trading period requirement, the 5% minimum shareholding for company shares, the £1 million lifetime limit, and what happens if you exceed it. Include a worked example comparing BADR vs standard CGT rates on a business sale, and mention Investors' Relief for passive investors (also 14% in 2025/26, £1m lifetime limit).

8. Gift Assets to Charity

Donating qualifying assets directly to a registered UK charity is generally exempt from CGT. You receive the full market value for Gift Aid purposes without triggering a tax charge on the gain.

📝 [Your Content Goes Here] Explain what qualifies as a charitable gift for CGT purposes (land, property, shares, works of art etc.), how Gift Aid enhances the income tax deduction on top of CGT relief, the interaction with inheritance tax, and any scenarios where CGT might still apply (e.g., if the asset is sold and proceeds donated rather than the asset itself).

Summary: CGT Reduction Strategies at a Glance

Strategy Potential Saving Complexity Best For
Annual Exempt AmountUp to £720 (HR) / £540 (BR)LowEveryone
Spousal TransferUp to 6% per £ of gainLowMixed-rate couples
Bed & ISAAll future gains tax-freeMediumLong-term investors
Offset LossesUp to 24% of loss valueLow–MediumInvestors with mixed portfolio
Carry Forward LossesVariableMediumThose with historical losses
Pension ContributionsUp to 6% rate reductionMediumHigher earners near band threshold
BADRRate reduced to 14%HighBusiness owners
Charitable GiftsFull CGT eliminationMediumPhilanthropic investors

The Bottom Line

With CGT rates at their highest level in years and the annual exempt amount at a record low, proactive tax planning is no longer just for the wealthy — it's essential for anyone with investments, property, or business assets.

The strategies above are all within HMRC's rules, but tax laws are complex and interact in ways that aren't always obvious. We strongly recommend working with a qualified tax adviser — particularly if your gain is large, you have both gains and losses, or you're selling a business.

📌 Next step: Use our free UK CGT Calculator to estimate your exact liability, then decide which strategies apply to your situation. The calculator covers 2025/26 and 2026/27 HMRC rates, with full support for property, shares, and BADR assets.

Calculate Your CGT Liability Now

Our free calculator is updated for 2025/26 and 2026/27 HMRC rates. Enter your figures and get an instant estimate.

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Disclaimer: This article is for informational and educational purposes only. It does not constitute financial or tax advice. Tax rules change and your individual circumstances may differ. Always seek independent advice from a qualified tax adviser or accountant before making financial decisions. The tax rates and allowances referenced reflect HMRC guidance as at April 2025.