Restructuring a business can create opportunities for growth, asset protection, and succession, but every step comes with potential tax consequences.
Whether you are planning a shareholder exit, inserting a holding company, or separating assets, it’s vital to understand the UK tax rules before making changes.
This article explores some of the most common restructuring methods and their key tax considerations.
A company purchase of own shares (CPOS) occurs when a company buys back shares from one or more of its shareholders. This can be an effective exit route for a retiring shareholder when there is no external buyer, or where the remaining shareholders wish to keep ownership within the family.
Under the Companies Act 2006, a company may repurchase its own shares and either cancel them or hold them as treasury shares (up to a 10% limit of nominal share capital). Treasury shares can later be reissued or used in an employee share scheme.
From a tax perspective, the payment to the selling shareholder is usually treated as an income distribution (taxed as a dividend). However, where certain conditions are met, it may qualify for capital gains treatment, often resulting in a lower tax rate. HMRC clearance should be obtained before completion.
To qualify for capital treatment, the company must be trading and the buy-back must benefit that trade. The seller must be UK resident and have held the shares for at least five years, with their interest substantially reduced (normally by at least 75%).
It’s essential to comply with the Companies Act requirements, confirm that the Articles permit buy-backs, make payment in cash from distributable profits, circulate the buy-back agreement to shareholders, and file Forms SH03 and SH06 with Companies House. Stamp duty at 0.5% applies, and HMRC must be notified within 60 days.
Failure to follow these steps can lead to costly errors, so professional oversight is crucial.
A share-for-share exchange is commonly used to insert a new holding company above an existing trading company. Shareholders simply exchange their shares in Tradeco for shares in Holdco in identical proportions.
If the transaction satisfies the requirements, it is not treated as a disposal, meaning there is no immediate capital gains tax liability. The new shares in Holdco “stand in the shoes” of the old shares in Tradeco.
No stamp duty applies if the ownership structure remains identical; however, any change in shareholdings will result in stamp duty being payable and, possibly, capital gains tax.
A well-designed group structure can deliver both commercial and tax efficiencies. By creating a holding company, valuable assets such as property or surplus cash can be held separately from the trading company, providing effective asset protection.
Group structures also streamline management across multiple subsidiaries and can reduce administrative complexity. From a tax perspective, dividends between UK group companies are tax-exempt, and assets can be transferred intra-group on a no gain/no loss basis.
A clear commercial rationale should always underpin the restructuring to ensure HMRC accepts the arrangement.
The Substantial Shareholding Exemption (SSE) can allow a company to sell shares in another company free from corporation tax.
To qualify, the seller must hold at least 10% of the ordinary share capital for a continuous 12-month period within the previous six years and be entitled to at least 10% of profits and assets on a winding up. The company being sold must be a trading company or a holding company of a trading group.
Recent rule changes mean the selling company no longer needs to be trading itself, making the exemption more widely available.
Where SSE applies, proceeds from the sale are tax-free. For shareholders hoping to claim Business Asset Disposal Relief (BADR), the holding company must be liquidated within three years of sale. Otherwise, the holding company can be retained as a Family Investment Company (FIC) to manage long-term wealth.
Before a sale, consider transferring shares into a family trust while Business Relief still applies. From April 2026, each trust will have its own £1 million relief cap, so early action can help maximise the benefit. Although trusts may attract periodic and exit charges, they remain valuable succession planning tools.
A capital reduction demerger allows parts of a business to be separated into a new company without triggering immediate tax charges. This is often used to move trading premises or investment property out of a trading company before a sale.
If transferred directly, such assets would normally create capital gains or stamp duty land tax liabilities. A capital reduction demerger, properly executed, allows the transfer to occur tax-free, though the legal and professional costs can be significant.
The process is technically complex, and HMRC clearance should always be obtained. HMRC generally approve demergers where there is a clear bona fide commercial purpose.
Restructuring can be a powerful way to achieve strategic goals, whether that’s succession planning, asset protection, or preparing for a future sale. However, the tax and legal requirements are detailed and interconnected.
Early advice is essential to ensure the structure works as intended, HMRC clearance is secured where appropriate, and the outcome is both compliant and tax-efficient.
If you are considering a company restructuring or sale, our specialist team can guide you through every stage from feasibility and HMRC clearance to implementation and post-transaction reporting.
Contact us today to discuss your situation in confidence or to request a recording of our latest webinar on restructuring a business.
