Legal and regulatory considerations for acquisitions: A non-lawyer’s perspective

Acquisitions remain at the forefront of many growth strategies, allowing businesses to surpass organic constraints and access new markets, technologies, and talent. However, contrary to some of the simplifications we’ve made in the series so far, embarking on the acquisition trail requires more than strategic intent and financial backing.  

A keen understanding of the legal and regulatory landscape will help acquirers to minimise unnecessary risks and avoid post-completion surprises. 

Whilst advisers and lawyers in particular play a crucial role in providing guidance, possessing a foundational understanding of relevant documents and procedures can allow acquirers to allocate their time to synergies and integration planning. 

This article offers a practical, non-lawyer’s perspective on the legal considerations for UK companies considering acquisitions. Note, for larger corporations exceeding the scope of SME acquisitions, additional factors such as competition law may become relevant. For further information, we strongly recommend consulting with your legal advisers.

The legal and regulatory landscape 

The regulatory framework governing acquisitions in the UK encompasses a complex array of statutory and regulatory provisions, all aimed at protecting stakeholder interests, promoting fair competition, and maintaining market integrity. The subsequent sections outline the key factors to consider when evaluating deals. 

Legal due diligence 

Further to the previously discussed financial DD – in Part 4 of the series – legal due diligence supports risk management by scrutinising a target’s legal structure, ownership, contracts, intellectual property, employment arrangements, litigation exposure, and compliance with sector-specific regulations. Key areas of focus include: 

Corporate structure and ownership

A thorough examination of the target company’s corporate structure is essential to understand its legal and operational framework. This includes verifying the ownership of shares, identifying all shareholders, and mapping out any subsidiary or affiliate relationships. Reviewing documents – such as the Articles of Association and Shareholders Agreement – helps to uncover any restrictions on share transfers, pre-emption rights, or governance provisions that could impact a potential transaction, and ensures clarity as to who controls the business and how decisions are made, which is critical for assessing both risk and value. 

Legal due diligence = asking tough questions now rather than finding expensive answers later.  

As with FDD, legal due diligence should be conducted prior to finalising the terms of the transaction to ensure that the acquirer fully understands the risks they will assume.

Material contracts

For many companies, a few contracts form the backbone of commercial operations; therefore, the terms – such as change of control clauses – can significantly influence the viability of a transaction.  

A detailed review of key agreements with suppliers, customers, and strategic partners is necessary to spot concerns, for instance, termination rights or automatic renegotiation provisions. Additionally, restrictive covenants – such as exclusivity, non-compete, or non-solicitation clauses – should be assessed for their potential to limit future business flexibility or create post-acquisition liabilities. 

Employment matters

Understanding the target’s employment landscape is vital, particularly in transactions involving the transfer of staff.  

Legal advisers should review typical employment contracts and any staff handbooks or policies. Special attention should be paid to compliance with the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE), which may apply when a business or part of it is transferred. TUPE safeguards employees’ rights, and non-compliance may expose an acquiring party to considerable legal and financial liabilities. 

Intellectual Property

Intellectual property (“IP”) assets often represent a significant portion of a company’s value, especially in technology-driven or brand-centric businesses. Due diligence involves verifying the ownership and legal status of both registered and unregistered intellectual property, such as trademarks, patents, copyrights, and domain names, and also requires identifying any licensing agreements, encumbrances, or ongoing disputes that may impact the buyer’s ability to utilise these assets after the acquisition.  

Clear title and freedom to operate are key to unlocking the full value of the IP. 

Compliance and litigation

A comprehensive review of the target’s legal and regulatory compliance history is crucial to uncover any hidden liabilities. This includes identifying past, pending, or threatened litigation, regulatory investigations, or enforcement actions. It also involves assessing the company’s internal compliance systems and any breaches of laws or industry standards, such as anti-bribery, data protection, or environmental regulations.  

Understanding these risks allows an acquirer to negotiate appropriate warranties, indemnities, or price adjustments to mitigate exposure. 

Deal structure 

The legal structure of a transaction shapes tax exposure, risk allocation, and regulatory implications. The most common structures in the UK are share purchases an

Share purchase

In a share purchase, the buyer acquires the shares of the target company, taking ownership of the entire legal entity. This includes all assets, liabilities, contracts, employees, and obligations – whether known or unknown. The inheritance of all liabilities (including contingent and undisclosed) emphasises the need for diligence and investigation. 

Pros: 

  • Continuity: Business operations, contracts, and relationships remain largely unaffected. 
  • Simplicity for third parties: No need to reassign contracts, leases, or licenses. 
  • Tax efficiency: Usually more favourable for sellers due to capital gains treatment. 

Cons: 

  • Risk exposure: The acquirer assumes all liabilities – transparent or not. 
  • Due diligence burden: Requires extensive legal, financial, and operational review. 
  • Warranties and indemnities: Must be robustly negotiated to protect the acquirer. 

A share purchase is generally advantageous for sellers, as it allows a clean exit by transferring ownership of the entire company, including all assets and liabilities, making the completion a straightforward and final transaction from their perspective. 

For buyers, a share purchase is only preferable when the target company is well-managed and has minimal legacy risks. Since the buyer inherits all liabilities, it’s helpful when the company has a straightforward legal, financial, and operational history. Otherwise, the buyer may face unexpected exposures post-acquisition. 

Trade and assets purchase

In a trade and assets purchase, the buyer selects specific assets (e.g., equipment, IP, contracts) and may assume certain liabilities. The legal entity itself therefore remains with the seller. Due diligence is still important, as the specific assets and liabilities often require identification and valuation. Furthermore, third-party consents may be required for contracts, leases, and licenses. 

Pros: 

  • Risk control: The acquirer can avoid unwanted liabilities and legacy issues. 
  • Flexibility: Tailored acquisition of only the valuable parts of the business. 
  • Tax benefits: The acquirer may benefit from asset depreciation or amortisation. 

Cons: 

  • Complexity: Requires detailed documentation and asset-by-asset transfer. 
  • Third-party consents: May delay or complicate the transaction. 
  • Employee transfer: TUPE may apply, requiring careful handling of staff rights.

A trade and assets purchase would normally be favourable for buyers compared to sellers, particularly when the target business has legal, financial, or operational baggage. This structure allows the buyer to cherry-pick only the desirable assets and avoid unwanted liabilities, offering greater risk control. For sellers, liabilities and the need to manage the wind-down of the business remainTrade and assets deals can therefore be more burdensome and involve additional tax liabilities for a seller and delay a simple farewell from the company as the company first has to account for corporation tax on the sale of the assets, then the shareholders need to address the personal income/ capital gains tax implications of extracting the residual cash from the company – often referred to as the “double tax” disadvantage of a trade sale.

Documentation  

The binding legal documents should be negotiated and drafted with precision. Below, we have reviewed the most important documents in the usual order of appearance: 

Heads of Terms (“HOTs”)

The HOTs is a preliminary document which outlines the key commercial terms agreed between the buyer and seller before due diligence and detailed negotiations begin. Whilst not usually legally binding (except for confidentiality, costs and exclusivity clauses), this agreement is regarded as morally binding and sets the framework for the transaction and helps prevent misunderstandings later in the process; for example, the legally-binding purchase agreement will be drafted based on the HOTs – putting the onus on the disagreeing party to provide good reason for any changes down the line.  

Share Purchase Agreement (“SPA”) or Asset Purchase Agreement (“APA”)

The SPA is used in share acquisitions, while the APA is used in trade and asset deals. These are the principal legal contracts that formalise the sale, detailing the purchase price, payment terms, warranties, indemnities, and conditions for completion. They are heavily negotiated and tailored to reflect the structure and risks of the deal. 

Warranties are statements or assurances provided by the seller about the condition of the business or assets being sold – for example, confirming that accounts are accurate or no ongoing litigation cases exist. Indemnities, on the other hand, are contractual promises by the seller to compensate the buyer if specific losses or liabilities arise – often related to matters uncovered during due diligence or disclosed as exceptions to the warranties. 

Disclosure letter

The disclosure letter accompanies the SPA and allows the seller to disclose exceptions to the warranties given in the agreement. It serves to limit the seller’s liability by identifying known issues, such as ongoing disputes or unusual contractual terms, and is a critical tool for managing the seller’s post-completion risk. 

Board and shareholder resolutions

Internal company documents are necessary to confirm approvals and authorise the transaction. Such documents ensure the deal is legally valid and enforceable under company law.

Employment transfer documents (if applicable)

In asset purchases, where employees are transferring under TUPE, specific documentation is required to inform and consult with staff, and to formalise the transfer of employment contracts. These documents help ensure compliance with employment law and protect both parties from future claims; for example, both parties must inform and, where appropriate, consult affected employees or their representatives, as failure to comply can result in potential compensation claims.  

Third-Party consents and assignments

If the transaction involves transferring contracts, leases, or licenses, third-party consents may be needed. Assignment agreements or novation documents are used to legally transfer the corresponding rights and obligations to the acquirer, ensuring continuity of business operations. 

Regulatory approvals and notifications 

Larger acquisitions may trigger mandatory notifications or require approvals from UK regulatory bodies. Whilst such requirements are critical for legal advisers to review, such considerations are only relevant for deals of a particular scale or within certain industries. The threshold for requiring Competition and Markets Authority review for example, is based on a turnover test, share of supply test, or no-increment test. For more detail we strongly suggest discussing with your legal advisers.  

Key regimes include: 

  • Competition and Markets Authority (“CMA”): The CMA may review mergers or acquisitions that could reduce competition. Transactions meeting certain turnover or market share thresholds, or those raising public interest concerns, can be investigated and, if necessary, blocked or subjected to remedies. 
  • National Security and Investment Act 2021 (“NSIA”): The NSIA grants the UK government powers to review and intervene in transactions that could pose national security risks, especially in sensitive sectors (e.g., defence, energy, or data infrastructure). Mandatory notification and approval may be required before completion. 
  • Sector-Specific Regulators: Certain sectors (financial services, telecoms, healthcare, and energy) have additional approval requirements or ongoing notification obligations. For example, the Financial Conduct Authority (“FCA”) and Prudential Regulation Authority (“PRA”) oversee acquisitions in the financial sector. 

Data protection and GDPR considerations 

Transfers of businesses involving personal data must comply with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018. Buyers must confirm that personal data has been lawfully collected and processed, ensure appropriate data sharing provisions are in place, and, post-completion, update privacy notices and maintain compliance. 

Other key legal considerations 

  • Property: Assess the status of leases, consents, and any restrictive covenants or planning permission issues. 
  • Tax: Consider the implications of stamp duty, VAT, capital gains, and other transactional taxes. Tax indemnities and warranties are common in UK deals. Depending on the size of the operation and your expertise, we would recommend the instruction of tax advisers and/or tax due diligence (“TDD”). In a recent case, the directors & shareholders of a company had ignored the particular rights attaching to different classes of shares in issue, choosing to moderate the level of dividends paid to different shareholders as it suited them but without due regard for the company’s articles of association, where paying different dividends on different share classes was prohibited and created a potentially significant tax problem for the company and the Vendors. 
  • Anti-Bribery and Corruption: Ensure that acquisition targets have robust policies and that there is no history or risk of breaches, particularly under the Bribery Act 2010. 

Special considerations for SME acquirers 

Whilst many legal requirements are commonplace for serial acquirers, SMEs should undertake proportionate due diligence given resource constraints, negotiate clear contractual protections, and understand and comply with TUPE and data protection obligations. For further information regarding the due diligence necessary for a specific acquisition, please contact us or your legal adviser. 

As mentioned at the beginning of this article, SMEs are less likely to trigger competition or national security reviews but it is still a risk and they should nonetheless be aware of sector-specific regulations. Early dialogue with experienced advisers and a pragmatic, risk-based approach to legal compliance is fundamental to success in the acquisition arena. 

Also, as you grow by acquisition, knowledge around Competition and Markets Authority thresholds may become increasingly relevant… 

Closing thoughts 

UK acquisitions present fertile ground for growth, but also a complex legal landscape to navigate. Comprehensive due diligence, careful structuring, and diligent regulatory compliance are essential – and simplified with the assistance of advisers.  

Recent developments – including the NSIA and heightened regulatory scrutiny of overseas investment – mean that acquirers must stay abreast of evolving requirements and government attitudes, particularly in sensitive sectors. Early engagement with M&A and legal teams can help ensure a smooth journey from negotiations through to integration. 

Previously in the acquisitions series 

Part 1: Why pursue acquisitions? 

Part 2: How to finance acquisitions 

Part 3: Master strategy – Planning for a successful acquisition 

Part 4: The acquisition process (step-by-step) 

Part 5: The treasure hunt – how to find acquisition targets

We always recommend that you seek advice from a suitably qualified adviser before taking any action. The information in this article only serves as a guide and no responsibility for loss occasioned by any person acting or refraining from action as a result of this material can be accepted by the authors or the firm.

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