Group Relief Explained: Surrendering Losses Across a Corporate Group

Corporate groups face a financial challenge: one company in the group generates a loss, while another makes a profit. Without strategic planning, the group as a whole ends up paying more Corporation Tax than necessary.

This is where group relief comes in. It allows companies within the same corporate group to surrender their qualifying losses to offset taxable profits generated by other group entities, minimising the group's overall tax liabilities. Getting to grips with group relief Corporation Tax rules early is one of the simplest ways a group can reduce what it owes.

The eligibility rules are precise and strictly enforced. Getting any of them wrong can lead HMRC to reject the claim. In this guide, we'll explain what group relief is, which companies qualify, what can and can't be surrendered, how a claim is made, and where groups most often run into trouble.
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What Is Group Relief and Why Does It Exist?

Group relief lets one company surrender trading losses, and other qualifying amounts, to another company within the same group, reducing that company’s taxable profits. 

It exists because HMRC recognises that a group of connected companies is economically a single business - even though each company is still taxed as a separate legal entity.

It’s worth distinguishing this from carrying a loss forward within the same company. Group relief is specifically about moving a loss from one group member to another, in the same accounting period. It’s not about a company using its own losses against its future profits.
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Which Companies Qualify as a "Group" for Relief Purposes

Not every collection of related businesses qualifies. HMRC applies a test, and understanding the group loss relief rules that sit behind it can help you get it right the first time:

The 75% ownership test: One company must own at least 75% of another's ordinary share capital, and be entitled to at least 75% of profits and assets available to equity holders. This can be satisfied through a chain of subsidiaries, not just direct shareholding.

UK tax residence: Since October 2021, losses from non-UK resident companies can no longer be surrendered under group relief. This doesn’t apply to cases involving a UK permanent establishment.

Overlapping accounting periods: The surrendering and claimant companies don’t need the same accounting periods. However, where periods don’t fully overlap, the amount available to surrender is restricted to the overlapping portion.
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What Losses and Amounts Can Be Surrendered

Trading losses are the main example, but they’re not the only qualifying amount. A surrendering company can also pass across:

• Excess capital allowances
• Non-trading loan relationship deficits
• Excess management expenses
• Qualifying charitable donations exceeding available profits

Capital losses can’t be surrendered under group relief. They remain with the company that incurred them and are available only against that company’s own future capital gains. Carried-forward losses are also treated differently from current-year losses. A related but separate set of rules applies for when and how they can be group-relieved.
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How a Group Relief Claim Gets Made

A group relief claim isn’t automatic. It has to be actively made, and both companies involved need to agree on the figures. The figures should be agreed before submitting anything to HMRC. This is where accounting for group relief becomes its own discipline, separate from just establishing eligibility.

Strict time limits also apply, generally running from the filing date of the accounting period. Still, these can shift if HMRC opens an enquiry into the return - another reason it’s worth having Tax Fee Protection in place, so an enquiry into a group relief claim doesn’t come with an unexpected bill.

Claims can’t be tweaked once submitted either. If the figures change, the original claim has to be withdrawn and replaced. That’s exactly why accounting for group relief tax right the first time is so important.
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Common Mistakes and HMRC Scrutiny

Most challenges with group relief claims come down to a handful of issues:

• Mismatched accounting periods between group companies complicate calculating how much can be surrendered.
  
  
• Errors in establishing group status, particularly where the 75% test is misapplied because shareholdings are indirect or minority interests are involved.
  
  
• Claims are more likely to be challenged or delayed where there's no clear audit trail showing how the group structure and figures were established. 

None of these issues is unusual on their own, but together they're why group relief claims tend to attract closer scrutiny than a standard Corporation Tax return.
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How Mitchell Associates Can Help

Knowing which entities are likely to generate losses and which are likely to be profitable lets you structure surrenders in the most tax-efficient way. Doing this kind of group relief tax planning well before your year-end means you're not left scrambling once the accounts are finalised.

All our clients are automatically covered by our Tax Fee Protection Service, so if HMRC opens an enquiry into a claim, you can rest assured the fees involved in defending it are already covered.

If your group has a mix of profitable and loss-making entities, don't wait to find out what you could have claimed. Contact our team today.