Advanced Taxation (UK) · Taxation effects of the financial decisions made by businesses and individuals

Tax Implications of Corporate Restructuring and Group Decisions

Updated 11 October 2026 · Fact-checked

This topic tests how tax changes when companies are grouped, reorganised, sold or buy back shares. You identify the relationship, apply the correct relief, then compute the tax for each party: company and shareholder. Compare alternatives, such as a share sale against an asset sale, and advise on the better net result.

Understand Tax Implications of Corporate Restructuring and Group Decisions

Corporate restructuring questions ask you to compare tax outcomes for two sets of people: the companies involved and their shareholders. The same commercial deal can be taxed very differently depending on how it is structured. Your job is to spot the structure, apply the right relief, and quantify the result.

Start with groups. For loss relief, companies need a 75% group relationship (a parent and its 75% subsidiaries, and 75% subsidiaries of those, with the parent holding at least 75% of the ordinary share capital and also being entitled to the right share of profits and assets on a winding up, through direct or indirect holdings). Group relief lets a loss-making company surrender current-period trading losses and other eligible amounts to a profitable group company. The claimant offsets them against its taxable total profits. Surrender is by choice, so you aim it at the company paying the higher rate, or at one with profits in the marginal relief band.

A chargeable gains group works differently. Within the group, assets move between companies on a no gain/no loss basis, so tax is deferred until the asset leaves the group. Gains and losses can be pooled by joint election, and the group can also roll over gains on reinvestment across members. The risk is a degrouping charge: if a company leaves the group within six years of receiving an asset on a no gain/no loss transfer while still holding it, a gain is calculated as if it sold and reacquired the asset at market value at the time of transfer. The charge is normally added to the consideration on the sale of the shares, so it falls within the substantial shareholding exemption position on that share sale where that exemption applies.

Next, share sale versus asset sale. If a company sells its trade assets, the company pays corporation tax on gains and balancing adjustments, and shareholders then face a second layer of tax when profits are extracted. If the shareholders sell their shares, there is usually one layer of tax: capital gains tax at 18% or 24%, or 14% where business asset disposal relief applies within the £1,000,000 lifetime limit. Buyers often prefer assets because of capital allowances and no inherited history, so price and tax need balancing. A company selling shares in a trading subsidiary may qualify for the substantial shareholding exemption.

Finally, reconstructions and purchase of own shares. In a share-for-share exchange or a scheme of reconstruction, shareholders can often avoid an immediate charge: the new shares take on the cost and date of the old ones. Anti-avoidance rules require a genuine commercial purpose, and clearance can be sought from HMRC. When an unquoted trading company buys its own shares, the default treatment for the shareholder is income distribution, taxed as dividend income on the excess over the capital originally subscribed. If conditions are met, the payment is instead treated as a disposal subject to CGT. Conditions include a benefit to the company's trade, UK resident shareholder, a five-year ownership period, a substantial reduction in the shareholding, and no connection with tax avoidance. The company also needs distributable reserves.

Key rules to remember

Group relief group: Parent holds ≥ 75% of ordinary share capital of subsidiary (directly or indirectly); Plus entitlement to at least 75% of profits available for distribution and of assets on a winding up. Test the position through each link for indirect holdings.
Group relief limit: Amount claimed ≤ lower of (surrendering company's available loss) and (claimant's taxable total profits for the matching period); Match the accounting periods. If they differ, time-apportion both profits and losses and use only the overlap.
Marginal relief: (Upper limit – Augmented profits) × 3/200 × Taxable total profits ÷ Augmented profits; Limits are £50,000 and £250,000 for a 12-month period. Divide them by the number of associated companies. Group relief is deducted from taxable total profits, not augmented profits, so it can reduce the corporation tax rate paid.
Corporation tax rates: Small profits rate 19%; main rate 25%; Rates in the supplied tax tables for financial year 2025. Use the tables in the exam.
Chargeable gains group: Transfer between group members = no gain/no loss; The transferee takes the transferor's cost and date of acquisition. Tax is only triggered when the asset leaves the group.
Degrouping charge: Company leaves group within 6 years holding asset acquired no gain/no loss → gain/loss as if sold at market value when acquired; Added to the sale proceeds of the shares in the company leaving. Check whether the substantial shareholding exemption applies on that sale.
CGT on shares sold by individuals: Gain – annual exempt amount £3,000 → tax at 18% / 24%; BADR 14% on first £1,000,000 lifetime; Rates from the supplied tables. The higher rate applies once gains fall in the band above the basic rate band.
Stamp duty on shares: 0.5% of consideration; Paid by the purchaser on a share purchase. Asset sales of non-residential land attract SDLT at 0%, 2% and 5% in slices: up to £150,000, £150,001–£250,000 and above £250,000.
Purchase of own shares: income treatment: Distribution = Payment – capital originally subscribed; Taxed as dividend income. The company does not deduct tax and the amount is not a deduction for the company.

How to solve Tax Implications of Corporate Restructuring and Group Decisions questions

Use the same sequence for any restructuring or group question. It keeps you inside the requirement and picks up the easy marks first.

1Read the requirement and identify who you are advising: the company, the group, the shareholders or the buyer. Note whether you need numbers, discussion or both.
2Draw the structure. Mark percentage holdings, and trace direct and indirect interests to decide whether a 75% group exists for group relief and for chargeable gains.
3Identify the transaction: group loss surrender, intra-group transfer, sale of shares, sale of assets, reconstruction or share buy-back.
4State the rule and test its conditions against the facts. Say which conditions are met and which are doubtful, for example the six-year degrouping window or the buy-back conditions.
5Compute tax for each party separately. For the company, work out corporation tax at 19%, 25% or with marginal relief. For the individual, work out CGT, income tax on dividends or stamp duty.
6Compare alternatives on net proceeds or net tax cost for each party, including the buyer's position where relevant.
7Give a clear recommendation with reasons, then note risks, such as anti-avoidance and clearance, plus any practical or commercial points.
8Check that each figure is rounded to the nearest £ and the workings are shown, as the supplementary instructions require.

Quickest way: Three-column comparison under time pressure

When to use it: Use when you must compare two ways of doing a deal, such as asset sale and share sale, or buy-back and sale to a third party.

Draw three columns: company level, shareholder level, buyer level.
Fill the company column first: gains, balancing adjustments and corporation tax at the right rate.
Fill the shareholder column next: CGT with annual exempt amount and BADR, or dividend tax on a distribution.
Add stamp duty or SDLT in the buyer column.
Total the net cash to each party and write one sentence recommending the better route.

Common mistakes in Tax Implications of Corporate Restructuring and Group Decisions

Applying group relief to any two companies with common ownership.
Students mix the 75% test with a simple majority holding or forget indirect holdings reduce the percentage.
Fix: Draw the structure and test the 75% condition through every link, including entitlement to profits and assets.
Surrendering the whole loss without checking the claimant's profits or the period overlap.
Students focus on the loss figure and forget the claim limit.
Fix: Take the lower of the loss and the claimant's taxable total profits for the overlapping period, time-apportioned.
Ignoring the degrouping charge when a subsidiary is sold.
The intra-group transfer seemed tax-free earlier, so students forget it is only deferred.
Fix: Check every no gain/no loss transfer in the last six years where the asset is still held, and add the charge to the share sale proceeds.
Treating a buy-back as a capital disposal automatically.
Students see shares being sold and jump to CGT.
Fix: Start from the distribution treatment. Only move to CGT if the conditions for the capital treatment are all met.
Forgetting double taxation on an asset sale by the company.
Students stop at corporation tax on the gain and omit the tax on extracting the proceeds.
Fix: Always follow the cash to the shareholders: dividend tax on distribution, or CGT on liquidation proceeds.
Using the full marginal relief limits when there are associated companies.
Students forget that the limits are divided by the number of associated companies.
Fix: Count associated companies first, divide the £50,000 and £250,000 limits, then compute the rate.

Worked examples

Example 1

P Ltd owns 100% of S Ltd. For the year to 31 March 2026, P Ltd has taxable total profits of £400,000 before any group relief and S Ltd has a trading loss of £150,000. There are no other associated companies and no dividends received. Compute P Ltd's corporation tax with and without a group relief claim for the whole loss. Assume neither company is a large company for instalments.

Show the solution

There are two associated companies (P Ltd and S Ltd), so the limits are halved: lower limit £25,000 and upper limit £125,000.
Without a claim: P Ltd's profits £400,000 exceed the upper limit of £125,000, so the main rate applies: £400,000 × 25% = £100,000.
With a claim: the claim is the lower of the loss £150,000 and profits £400,000, which is £150,000. Taxable total profits become £400,000 – £150,000 = £250,000.
£250,000 still exceeds the £125,000 upper limit, so the main rate applies: £250,000 × 25% = £62,500.
Tax saving = £100,000 – £62,500 = £37,500, which is £150,000 × 25%.

Answer: Corporation tax is £100,000 without the claim and £62,500 with it, a saving of £37,500.

Example 2

Mr Z owns all the shares in Z Ltd, an unquoted trading company. He subscribed £10,000 for them at par and has held them for many years. A buyer offers £500,000 for the shares. Z Ltd alternatively could buy back all his shares for £500,000, but the buy-back conditions for capital treatment are not met. Mr Z has no other income or gains and has already used his £3,000 annual exempt amount elsewhere. Assume he is an additional rate taxpayer, and that business asset disposal relief is available on a sale to the buyer. Compute the tax on the sale to the buyer, using the supplied rates.

Show the solution

Gain on the sale to the buyer = £500,000 – £10,000 = £490,000.
Annual exempt amount is already used, so the whole £490,000 is taxable.
BADR applies at 14% on gains within the £1,000,000 lifetime limit, so £490,000 × 14% = £68,600.
On the buy-back, the distribution would be £500,000 – £10,000 = £490,000, taxed as dividend income at his dividend rate instead of CGT. Dividend rates are not in the supplied extract, so they are not calculated here, but dividend tax is normally a higher rate than 14%, so the sale is better.
The buyer also pays stamp duty of 0.5% × £500,000 = £2,500, and this is for the buyer's cost, not Mr Z's.

Answer: Tax on the sale to the buyer is £68,600 under BADR. The buy-back would be taxed as income at dividend rates, so the share sale is likely to leave Mr Z better off.

Exam tips

Draw the group structure first, with percentages. It earns marks for analysis and stops you using the wrong relationship.
Always say which test you are applying: 75% group, six-year degrouping window, or the buy-back conditions. Then apply it to the facts.
Show the tax cost to every party in a comparison. Marks are often awarded for the shareholder level that students forget.
Write your recommendation clearly with one or two reasons. This supports the professional skills marks for commercial acumen and communication.
Do not invent rates. Use the tax tables supplied in the exam and state any assumptions you make.

Practice questions from Taxation effects of the financial decisions made by businesses and individuals

Tax Implications of Corporate Restructuring and Group Decisions 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 SkillsGroup Relief and Corporation Tax Groups

Tax Implications of Corporate Restructuring and Group Decisions: frequently asked questions

What is the difference between group relief and a chargeable gains group?

Group relief moves current-period losses and certain other amounts between companies to reduce taxable total profits. A chargeable gains group lets assets move between members at no gain/no loss and lets gains and losses be pooled. The tests are similar but the reliefs apply to different items.

When does a degrouping charge arise?

It arises when a company leaves a group while still holding an asset it received from another group member on a no gain/no loss basis within the previous six years. The gain is calculated as if it had sold and reacquired the asset at market value when it received it. It is normally added to the proceeds for the shares sold.

Is a share sale better than an asset sale?

For the seller, a share sale usually gives one layer of tax at CGT rates, with BADR at 14% possible within the £1,000,000 lifetime limit. An asset sale gives corporation tax in the company, then a second tax on extracting proceeds. A buyer may still prefer assets, so the price may need adjusting.

How is a purchase of own shares taxed for an unquoted company?

Normally the shareholder is treated as receiving a distribution equal to the price less the capital originally subscribed, taxed as dividend income. If the capital conditions are met, the shareholder is taxed on a capital disposal instead. You must test each condition on the facts.