ACCA Strategic Professional · Advanced Taxation (UK)

Corporation Tax: Using Exemptions and Reliefs to Defer and Minimise Liabilities

This chapter covers how a UK company can defer or reduce its corporation tax using rates, marginal relief, loss relief, group reliefs, gains reliefs, R&D and other deductions. To solve a question, find the company's profits, apply each relief in the right order, then compute tax and advise on the best option.

What this chapter covers

This chapter is about the tools a company has to cut or delay its corporation tax bill. You start with the rates and marginal relief, then move to losses, group relief, chargeable gains reliefs, special regimes for intangibles, R&D and patents, employer deductions, and finally the choice of business structure and profit extraction.

It links to almost everything else in ATX-UK. Company gains connect to the capital gains reliefs you meet for individuals. Profit extraction connects to income tax, dividends and national insurance. Group questions connect to the wider planning in Section A case studies.

The tax tables ACCA gives you hold the rates, limits and thresholds, so you do not need to memorise numbers. You need to know how to apply them, which conditions must be met, and when a relief is better than the alternative.

Corporation tax appears in the 50-mark Section A case study and in Section B questions, and ATX-UK questions usually ask you to advise, not just calculate. The marks come from correct computations, from stating the conditions for each relief, and from professional skills such as clear recommendations and commercial judgement. Candidates who know the reliefs but cannot compare options lose marks on the advice. This chapter rewards that skill heavily, so it deserves steady practice with full past questions.

Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities: topics in the order to study them

1Corporation Tax Rates, Marginal Relief and InstalmentsEvery later computation ends with a rate, so you need the 19%, 25% and marginal relief mechanics first.
2Trading Losses: Carry Forward, Carry Back and Terminal ReliefLoss relief is the core single-company relief and its ordering rules feed into group relief.
3Group Relief and Capital Gains Group ReliefsGroup relief builds on losses and on the associated company count that affects the rate limits.
4Chargeable Gains for Companies: Rollover and Substantial ShareholdingOnce group transfers are clear, you can apply gains reliefs such as rollover and the substantial shareholding exemption.
5Intangible Assets, Research and Development and Patent BoxThese are specialist regimes that sit on top of the basic trading profit computation.
6Share Schemes, Pension Contributions and Employer DeductionsThese reduce trading profit and link the company's tax to the employee's tax and NIC position.
7Choice of Business Structure and Extraction of ProfitsThis pulls together company and personal tax, so you need the earlier topics to compare options.
8Close Companies, Anti-Avoidance and Related Tax ReliefsStudy this last because it tests the limits of the reliefs you have already learned.

How to prepare Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities

Work from the computation outward. Learn the mechanics, then practise applying them in scenarios where you must choose and justify.

Read the ACCA tax tables first and note which figures are given, such as the £50,000 and £250,000 limits, so you never waste time memorising them.
Learn each relief as a short checklist: who can claim, the conditions, the time limits, the order of use and the effect on the tax bill.
Practise short computations for rates, marginal relief and loss offset until the layout is automatic.
Do group questions with a diagram of the group, marking who owns what and which companies have losses or gains.
Attempt full Section A and Section B questions under time, then compare your advice with the examiner's answer.
For every question, write a one-line recommendation with a reason, since professional skills marks depend on clear advice.
Keep a one-page list of anti-avoidance traps and revisit it weekly.

Common mistakes in Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities

Using the wrong corporation tax limits by ignoring associated companies or short accounting periods.
Fix: Always ask two questions before computing: how many associated companies, and how long is the period? Write the adjusted limits first.
Applying loss relief in the wrong order or ignoring time limits.
Fix: List the available loss routes in order, state the claim conditions and deadlines, then compare the tax saved by each.
Claiming group relief between companies that are not properly connected.
Fix: Draw the structure and test the connection before any transfer of losses.
Giving computations without advice.
Fix: Finish each requirement with a short recommendation, the reasons, and any risks or assumptions.
Looking at company tax alone when advising on profit extraction or structure.
Fix: Compute the total tax cost for company, shareholder and NIC, then compare options on the same basis.

Last-day revision: Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities

Corporation tax rates: small profits rate 19%, main rate 25%, with limits of £50,000 and £250,000.
Marginal relief = (Upper limit − Augmented profits) × 3/200 × Taxable total profits ÷ Augmented profits.
Limits are divided by the number of associated companies and time-apportioned for short periods.
Quarterly instalments apply to large companies, with a profit threshold of £1,500,000 in the tables.
Check loss relief order: current period, carry back, then carry forward, and state the claim time limits.
Terminal loss relief lets you carry back losses of the final period, subject to the rules for that relief.
Group relief needs the right group connection, and the surrendering and claimant companies must be in the same period.
Check conditions before applying rollover relief or the substantial shareholding exemption.
Employer deductions reduce profit, so link them to the employee's income tax and NIC.
Compare salary, bonus and dividends for extraction using both company and personal tax.
End every answer with a clear recommendation and the reason for it.

Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities practice questions

Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities in other exams

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

Corporation tax: the use of exemptions and reliefs in deferring and minimising corporation tax liabilities: frequently asked questions

Do I need to memorise corporation tax rates for ATX-UK?

No. ACCA provides the rates, limits, marginal relief formula and instalment threshold in the tax tables. You must know how to use them, including adjusting limits for associated companies and short periods.

How is marginal relief calculated?

It applies when augmented profits fall between the lower and upper limits. The formula is (Upper limit − Augmented profits) × Standard fraction × Taxable total profits ÷ Augmented profits. The standard fraction is 3/200 in the tables.

How should I study group relief?

Draw the group structure first and mark each company's profit or loss. Then check the connection conditions and work out which company should claim to save the most tax. Practise with full questions, not just short examples.

Is this chapter mainly calculations or advice?

Both. You need accurate computations, but ATX-UK also awards professional skills marks for clear recommendations and commercial judgement. Practise writing a short, reasoned conclusion for each requirement.