Investors’ Relief under pressure – Why HMRC is tightening its approach

20 May 2025

Investors’ Relief under pressure – Why HMRC is tightening its approach

HM Revenue & Customs (HMRC) is writing to taxpayers who claimed Investors’ Relief on their 2023/24 Income Tax Self-Assessment returns but may not meet the strict eligibility criteria.

These letters signal increased enforcement around a lesser-used Capital Gains Tax (CGT) relief that is frequently misunderstood.

What is Investors’ Relief?

Introduced in 2016, Investors’ Relief offers a reduced CGT rate of 14 per cent (for disposals made on or after 6 April 2025) on qualifying gains when individuals dispose of ordinary shares in unlisted trading companies.

To qualify, the shares must have been newly issued and subscribed for in cash, held for at least three years, and not linked to employment or a directorship, except in narrow circumstances.

It is intended to encourage long-term investment by external investors in trading businesses and remains distinct from Business Asset Disposal Relief.

The lifetime gains limit for Investors’ Relief is now £1 million, applying to disposals made on or after 30 October 2024.

What is HMRC challenging?

HMRC has identified numerous 2023/24 Self-Assessment returns where Investors’ Relief was claimed without sufficient evidence or where eligibility is unclear.

Two types of letters are now being issued:

  • Eligibility warning – The taxpayer is asked to re-check the relief conditions. If the claim is found to be invalid, an amendment should be submitted. If valid, HMRC expects the taxpayer to confirm this.
  • Insufficient information – In some cases, the return did not include enough detail for HMRC to assess the claim. Taxpayers are asked either to amend the return or provide the missing information, such as acquisition and disposal dates, subscription details, and the investor’s relationship to the company.

Consequences of inaction

Taxpayers have 30 days from the date of the letter to respond. After that, HMRC may amend the return or initiate a formal compliance check.

Any CGT underpaid as a result of an invalid claim will attract interest and penalties, with the letter constituting a “prompted disclosure”, potentially increasing the penalty range.

Common misconceptions leading to invalid claims

Many taxpayers assume they can claim Investors’ Relief simply by holding shares in a trading company for three years.

In reality, the rules are more detailed than they first appear, and errors are surprisingly common.

Business owners attracting outside investment, as well as individuals backing start-ups or unlisted companies, need a clear understanding of how the relief applies, well before making assumptions in a tax return.

Make sure your claim holds up

If you or your business has claimed Investors’ Relief in a recent return, or are planning to rely on it in future, this is the right moment to review your position.

We can help assess whether your claim meets HMRC’s requirements and ensure any disclosures are handled correctly.

Contact us if you have received a letter, are unsure about your eligibility, or want to discuss planning future investments with tax efficiency in mind.

Latest News

New payroll obligations: Annual leave and pay record-keeping from 6 April 2026

A significant but widely overlooked change took effect on 6... Read more

Is now the perfect time to file your Self Assessment tax return?

HMRC has sent out a message to some of the... Read more

Health screenings – A tax-efficient employee benefit

Many employers are on the lookout for new means to... Read more

91 per cent of SMEs are unaware of HMRC’s new e-invoicing requirements

From 1 April 2029, all VAT-registered businesses will need to... Read more

What happens when you underpay tax?

The new tax year has recently begun and it is... Read more

Close companies face additional reporting requirements

Further administrative changes are on the cards for close companies,... Read more

Get in touch

This field is for validation purposes and should be left unchanged.
If you would like to see full details of our data practices please visit our Privacy Policy.

843 Finchley Road,
London, NW11 8NA

This field is for validation purposes and should be left unchanged.

If you would like to see full details of our
data practices please visit our Privacy Policy.

Glazers Chartered Accountants is a partnership. This information has been produced for general interest. It is therefore essential to take advice on specific issues. We are unable to take responsibility for any outcome resulting from acting upon, or refraining to act upon, this information. In accordance with the disclosure requirements of the Provision of Services Regulations 2009, our professional indemnity insurers are Prosure Solutions Limited, 150 Minories, London, EC3N 1LS. The territorial coverage is worldwide excluding any action for a claim bought in any court in the United States of America or Canada.

© Glazers 2026. Company No. 05962817

Website designed by JE Consulting