When Does the 10% Capital Gains Tax Rate Apply to Business Assets?

Business owners, company shareholders and partners considering disposing of shares or an interest in a trading business. How Business Asset Disposal Relief (BADR) allows qualifying disposals to be taxed at 10% Capital Gains Tax instead of the standard rate, and the lifetime limit that applies. If the conditions for BADR are met, qualifying gains are taxed at 10%, subject to a lifetime limit. If the conditions are not met, the gain is taxed at the standard Capital Gains Tax rate. Eligibility must therefore be reviewed carefully before disposal.

What Is Business Asset Disposal Relief?

Business Asset Disposal Relief allows qualifying disposals to be taxed at 10% instead of the standard rate of Capital Gains Tax. The relief applies to qualifying business disposals, including:
  • Disposal of all or part of a business as a sole trader.
  • Disposal of shares in a personal company.
  • Disposal of an interest in a trading partnership.
CGT of 10% is payable in place of the standard rate, subject to the lifetime limit.

Lifetime Limit

The relief is subject to a £1 million lifetime cap. This means that:
  • Qualifying gains up to £1 million are taxed at 10%.
  • Any gains above the lifetime limit are taxed at the standard CGT rate.
For disposals before 11 March 2020, a higher lifetime limit may apply.

Qualifying Disposals

Business Asset Disposal Relief may apply to:
  • Disposal of all or part of a trading business.
  • Disposal of shares in a personal company.
  • Disposal of an interest in a trading partnership.
The relief is available where the relevant qualifying conditions are satisfied.

Claiming the Relief

A claim for Business Asset Disposal Relief must be made within the required time limits. The claim is normally made through the Self Assessment tax return for the year of disposal.

Real-World Application

  • A company shareholder disposing of qualifying shares may pay CGT at 10% on gains within the lifetime limit.
  • A sole trader selling their business may qualify for the 10% rate on the disposal of the business.
  • A partner disposing of their interest in a trading partnership may qualify for relief, subject to the conditions being met.
The difference between 10% and the standard CGT rate can be significant depending on the size of the gain.

Risks and Considerations

  • Assuming the 10% rate applies without reviewing eligibility.
  • Exceeding the £1 million lifetime limit.
  • Failing to submit a claim within the required deadline.
  • Misunderstanding which disposals qualify for relief.
If the conditions for Business Asset Disposal Relief are not met, the gain will be taxed at the standard Capital Gains Tax rate.

Before You Dispose of a Business Asset

  • Confirm that the disposal qualifies for Business Asset Disposal Relief.
  • Review your remaining lifetime limit.
  • Ensure the claim deadline is understood.
Advance review ensures that the correct Capital Gains Tax treatment is applied.

Plan Your Exit to Secure the 10% CGT Rate

Business Asset Disposal Relief can reduce Capital Gains Tax to 10% on qualifying disposals, but strict eligibility rules apply to shareholdings, trading businesses, and personal company conditions. Failing to meet ownership, employment, or qualifying period requirements can result in a significantly higher tax charge. Obtaining specialist capital gains tax advice London ensures your disposal is structured properly and relief is claimed accurately. Cigma Accounting, advising business owners from our Kingston Upon Thames and supporting clients in Hook and Hampton Wick, provides careful review before contracts are finalised.

Timing, share structure, and lifetime limits must all be assessed to avoid costly mistakes or missed opportunities. Working with an experienced tax accountant in London allows you to align your exit strategy with HMRC requirements while protecting overall proceeds. Cigma Accounting offers technically robust, commercially focused support with physical offices across London, helping directors and shareholders secure the relief they are entitled to with confidence.

HOPING TO QUALIFY FOR THE 10% CGT RATE ON A BUSINESS DISPOSAL?

The reduced 10% rate can apply where strict conditions are met, including ownership periods and trading status. Reviewing eligibility before a sale is agreed can help secure the relief and avoid unexpected reclassification at higher rates.

Trusted guidance from London-based accountants, focused on accuracy, clarity, and compliance. 


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CIGMA Accounting
CIGMA Accounting Ltd is a forward-thinking accounting and tax firm based in London, dedicated to delivering high-quality compliance, tax planning, and business advisory services to entrepreneurs, landlords, and growing SMEs. With offices in Wimbledon and Farringdon, we combine local expertise with a tech-driven approach to simplify accounting. Our services include corporation tax filing, VAT compliance, HMRC investigation support, R&D tax credit claims, capital allowances optimisation, and bookkeeping automation. What sets CIGMA apart is our ability to blend traditional accounting rigour with AI-powered systems that reduce errors, save time, and provide real-time financial insights. Our team ensures that every client - from startups to high-net-worth individuals - receives a bespoke solution aligned with their growth goals. Whether you need strategic tax planning, help with HMRC disclosures, or a full outsourced finance function, CIGMA Accounting delivers clarity, compliance, and confidence.