Corporation Tax: The Effect of a Group Structure

What this chapter covers

Corporation tax: the effect of a group structure: topics in the order to study them

1. 1Group Relationships and Corporation Tax ThresholdsEverything else depends on knowing which companies are associated or grouped, and how that cuts the £50,000 and £250,000 limits.
2. 2Group Loss Relief and Consortium ReliefOnce relationships are clear, you can decide which company's losses can be surrendered, and in what amounts and order.
3. 3Chargeable Gains Groups and Degrouping ChargesGains rules use the group definitions again and add the transfer of assets and the charge when a company leaves.
4. 4Stamp Taxes and VAT in a Group ContextThese are shorter, rule-based topics that sit well after gains, since they often arise on the same transfers.
5. 5Group Payment of Tax and Company Disposals PlanningThis pulls the whole chapter together, so study it last when you can use all the earlier rules in advice.

How to prepare Corporation tax: the effect of a group structure

1. Draw a group diagram for every question. Mark percentage holdings, and note direct and indirect links before you do anything else.
2. Learn the tax table figures you will be given, such as the small profits limits of £50,000 and £250,000 and the marginal relief formula, so you can find and apply them fast.
3. Practise the threshold calculation: divide the limits by 1 plus the number of associated companies, and adjust for short accounting periods.
4. Work loss relief questions in a set order: identify the loss, test who can claim, compute the amount available, and state the best use.
5. Do mixed past-style case studies on gains, degrouping, stamp taxes, VAT and share-versus-asset sales, and write the advice in short, reasoned paragraphs.
6. Finish each practice question by reviewing your professional skills: did you answer the requirement, apply it to the scenario, and give a clear recommendation?

Common mistakes in Corporation tax: the effect of a group structure

• Miscounting associated companies when dividing the limits.

  Fix: Draw the structure first and apply the association test to each company, then divide the limits by 1 plus the number of associates.

• Forgetting to time-apportion limits in short accounting periods.

  Fix: Check the period length every time and scale the £50,000 and £250,000 limits before calculating tax.

• Using the wrong test for different group reliefs.

  Fix: State the relevant relationship test at the start of each answer and check it against the percentages given.

• Surrendering losses without checking the best use.

  Fix: Compare the tax rates of each claimant company and recommend the use that gives the greatest saving.

• Ignoring degrouping charges when advising on a sale.

  Fix: Always scan the history for intra-group asset transfers before concluding the tax cost of a sale.

• Giving calculations with no advice or commercial comment.

  Fix: End each part with a clear recommendation, link it to the client's aims, and mention risks and assumptions to earn professional skills marks.

Last-day revision: Corporation tax: the effect of a group structure

• ✓Associated companies share the small profits limits, so each limit is divided by 1 plus the number of associated companies.
• ✓The lower limit is £50,000 and the upper limit is £250,000 for the year, and both are time-apportioned for short periods.
• ✓Small profits rate is 19% and main rate is 25%; marginal relief uses the standard fraction of 3/200.
• ✓Marginal relief = (upper limit − augmented profits) × 3/200 × taxable total profits ÷ augmented profits.
• ✓Check the relationship test first: group relief, gains groups and consortium relief each have their own conditions.
• ✓Group relief is a surrender of current period losses to a claimant company, in matching periods.
• ✓Consortium relief depends on the ownership share, so only that proportion can move.
• ✓A degrouping charge can arise when a company leaves the group holding an asset it received on a no gain, no loss transfer.
• ✓Stamp duty on shares is 0.5%; non-residential SDLT is 0% to £150,000, 2% to £250,000 and 5% above.
• ✓VAT registration limit is £90,000 and deregistration limit is £88,000; a VAT group is treated as one taxable person.
• ✓Quarterly instalments apply to large companies where profits exceed the £1,500,000 threshold, with the threshold also affected by associated companies.
• ✓In a disposal, compare a sale of shares with a sale of assets, and state the tax cost for each side.

Corporation tax: the effect of a group structure practice questions

• Sigma Ltd and Tau Ltd are 100% related UK companies with the same 31 March year end. Sigma Ltd is the only company in the group paying corpo…
• Theta Ltd is a large company under the quarterly instalment regime with an accounting period ending 31 December 2026. A group company has la…
• Gamma Ltd owns 100% of Delta Ltd. Gamma sells its entire shareholding in Delta Ltd to an unconnected buyer, having held it for four years. D…

Corporation tax: the effect of a group structure in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

• ACCA Applied SkillsThe use of exemptions and reliefs in deferring and minimising corporation tax liabilities
• CS ProfessionalLaws relating to Drafting and Conveyancing