Share Sale vs Asset Sale in the UK: Which Is Better?

Thinking about buying or selling a small business? One of the first decisions you’ll face is whether the deal should be structured as a share sale or an asset sale.

Both routes can get you to completion, but they work very differently in law, tax and risk. Choose the wrong one and you could inherit liabilities you didn’t expect, miss out on valuable tax reliefs, or spend months chasing landlord and supplier consents.

In this guide, we’ll break down share sale vs asset sale in plain English, explain the practical pros and cons for UK small businesses, and outline the key legal documents and steps so you can move forward confidently.

What Is The Difference Between A Share Sale And An Asset Sale?

In a share sale, the buyer purchases the shares in the company from the current shareholders. Legally, the company remains exactly the same - same contracts, employees, licences and liabilities - but with new owners. The company carries on trading as before, just under different control.

In an asset sale (also called a business sale), the buyer purchases selected assets of the business from the company or sole trader/partnership. This can include equipment, stock, IP, goodwill, and sometimes contracts and leases. The buyer usually sets up its own entity to acquire those assets. Liabilities generally stay with the seller unless specifically transferred.

Think of it as buying the “vehicle” (share sale) versus buying the “contents” (asset sale). One transfers ownership of the whole company; the other cherry-picks the parts you want.

When Does A Share Sale Make Sense For Small Businesses?

A share sale can be the simplest way to transfer a trading business that needs continuity. These are common scenarios where a share sale is attractive:

• Regulatory licences or contracts are hard to assign: If the business relies on licences, accreditations or customer/supplier contracts that are difficult (or time-consuming) to transfer, keeping the same company avoids re-approval or consent processes.
• Brand and operational continuity matter: The company keeps the same VAT number, bank accounts, payroll, website subscriptions and vendor relationships. This minimises disruption for staff and customers.
• Tax planning for sellers: Depending on circumstances, sellers may prefer capital gains treatment at the shareholder level and may be aiming for reliefs such as Business Asset Disposal Relief (subject to eligibility).

However, share sales come with a key trade-off: the buyer acquires the company “warts and all”. Even with rigorous due diligence, historic liabilities (e.g. tax, employment, environmental) legally remain with the company and therefore indirectly with the buyer.

Because of that, buyers typically require robust warranties and indemnities in a Share Sale Agreement, plus detailed disclosure from the seller to manage risk.

When Is An Asset Sale The Better Option?

An asset sale can be attractive where you want to acquire the commercial value of a business while leaving behind unknown liabilities. Popular reasons include:

• Liability control: By default, only assets and liabilities you expressly agree to take on are transferred. This can ring-fence risk and make insurers/investors more comfortable.
• Flexibility: You can pick the assets you want (e.g. brand, customer database, stock, equipment) and exclude others (e.g. legacy disputes or debt).
• Tax and balance sheet planning for buyers: Buying assets may enable different tax treatment (e.g. capital allowances on qualifying plant and machinery). Always get tailored tax advice.

The trade-off is complexity. Each asset and contract usually needs to be identified and transferred individually. You’ll often need third party consents - for example, landlord approval to assign a lease, or customer consent to transfer a key supply agreement. When people, premises and many contracts are involved, those consent processes can drive timing and cost.

In UK practice, asset deals are documented in a Business Sale Agreement (sometimes called an Asset Purchase Agreement). You’ll also prepare a suite of assignment and novation documents to move contracts across.

Legal And Tax Considerations You Can’t Ignore

1) Employees And TUPE

On an asset sale, the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) typically apply if the business is a “going concern”. That means employees assigned to the business usually transfer automatically to the buyer on their existing terms, with continuity of service preserved.

Both buyer and seller must follow consultation obligations, and certain dismissals connected to the transfer can be automatically unfair. If you’re planning to reorganise roles after completion, get advice early: TUPE can be technical, and non-compliance can be costly.

On a share sale, there’s no change in employer (the company remains the employer), so TUPE doesn’t usually apply. You still need to consider internal comms, retention incentives and any post-completion restructuring under general employment law.

2) Contracts, Leases And Consents

On a share sale, contracts and leases stay with the company, so generally no assignment is needed - but watch for “change of control” clauses that trigger consent or termination rights. These are common in SaaS, distribution and major supply contracts.

On an asset sale, you’ll need to transfer each contract you want to keep. If a contract can be assigned without consent, an assignment may be enough for one-way obligations. Where both rights and obligations are moving and the other party’s consent is required, you’ll likely use a novation. If you’re unsure which to use, this overview of novation or assignment is a helpful starting point.

Premises are often critical. Most commercial leases require landlord consent. Start early and expect to provide financials and references. Our guide to assigning a lease explains the typical process and pitfalls.

3) Intellectual Property And Data

On a share sale, registered IP (trade marks, designs) remains owned by the company. On an asset sale, you’ll need formal IP assignments for each right (registered and unregistered). That can include brand assets, domain names, social media handles and copyright in content and software. Where relevant, use properly drafted IP assignment documents to make sure ownership is clear and enforceable.

If the business includes a customer database or other personal data, ensure transfers comply with UK GDPR and the Data Protection Act 2018. You’ll likely need to update privacy notices, record the change in your records of processing, and put in place appropriate transfer terms with processors. Sometimes a refreshed Privacy Policy is sensible if your legal entity is changing how data is handled.

4) Licences And Permits

Certain industries require approvals that do not readily transfer (e.g. some FCA permissions, sector-specific registrations, or public sector framework agreements). In a share sale, approvals typically remain valid. In an asset sale, you may need to reapply or arrange for fresh registrations in the buyer’s name, which can affect timelines.

5) Tax And Duty

Tax position varies by deal structure and the parties’ circumstances, but some common UK points include:

• Stamp Duty on shares: Share purchases typically attract 0.5% stamp duty on the consideration for shares (subject to thresholds/exemptions). For a deeper dive on costs, see our note on stamp duty on shares and assets.
• SDLT and property: An asset deal may trigger SDLT if land interests are transferring.
• VAT and TOGC: Asset deals may qualify as a “transfer of a going concern” (TOGC), which can be outside the scope of VAT if conditions are met. The details are specific - get tax advice early to avoid unwelcome VAT bills.
• Capital allowances: Buyers may claim allowances on qualifying plant and machinery acquired in an asset sale; fixtures apportionments should be agreed in the contract.
• Seller CGT: Sellers face different capital gains consequences depending on whether they sell shares or assets; reliefs such as Business Asset Disposal Relief depend on eligibility and need careful planning.

Tax can move the needle significantly on price and structure. It’s worth modelling both routes with your accountant before you lock in heads of terms.

Key Documents And Deal Structure: What Will You Need?

Share Sale: Typical Documents

• Heads of Terms (non-binding), including exclusivity and confidentiality
• Disclosure Letter and bundle: seller discloses exceptions to warranties
• Share Sale Agreement (SPA): price, conditions, warranties, indemnities, restrictions
• Tax Covenant (if required): allocates pre/post-completion tax liabilities
• Share transfer forms and board/shareholder approvals: you may also need formal share transfer documentation and Companies House filings
• New governance documents post-completion: for example, a Shareholders Agreement if investors are coming in alongside the buyer

Asset Sale: Typical Documents

• Heads of Terms (scope of assets/liabilities, price mechanism, employees)
• Vendor due diligence pack: contracts, licences, IP, HR, financials
• Business Sale Agreement (APA): identifies assets, liabilities, price, warranties
• Assignments and novations for key contracts; landlord licence to assign for the lease
• IP assignments; stock transfer documentation; completion deliverables
• Employee transfer measures: TUPE information/consultation records and measures letter

Warranties, Indemnities And Price Adjustments

In both structures, buyers typically rely on contractual protections to manage risk:

• Warranties: statements of fact about the business (e.g. compliance, accounts, IP ownership). If untrue, the buyer may claim damages. The seller mitigates risk by disclosing exceptions in the Disclosure Letter.
• Indemnities: targeted protections for specific known risks (e.g. a pending claim). These shift certain losses directly to the seller.
• Price mechanics: completion accounts or locked box approaches are common; stock valuation and debt/cash adjustments should be precisely defined.
• Retention/escrow: part of the price may be held back for a period to cover warranty claims.

Getting these right can prevent disputes later. A clear schedule of assets, a clean list of transferring employees, and unambiguous price mechanisms save headaches on completion day.

Practical Steps To Get The Deal Over The Line

1) Plan The Structure Early

Before you issue or sign heads of terms, speak with your accountant and lawyer about share sale vs asset sale. This is the moment to weigh tax, risk and practicalities - changing course later is difficult once the parties have aligned expectations.

2) Run Sensible Due Diligence

Buyers should test what they’re getting. At a minimum, review financials, key contracts, IP, employees, disputes, licences and data protection. Sellers who prepare a tidy data room and anticipate questions keep the process moving. If you want structured support, our due diligence package helps you focus on the key risk areas for small business deals.

3) Map Consents And Approvals

Create a consents tracker listing counterparties, the basis for consent (assignment or change of control), what they require to approve, and the critical path items (like the lease). Start these conversations early; third parties often work to their own timelines.

4) Lock Down Contract Transfers

For asset deals, agree which contracts are “must have”, which are “nice to have”, and how you’ll handle any that won’t transfer in time. Consider side letters, transitional services or price adjustments if a key customer hasn’t consented by completion. Use the right transfer document - assignment or novation - for each contract, as noted above.

5) Protect The Brand And Data

Ensure all brand assets and IP actually move to the buyer on completion (including domain registrar accounts and social media admins). For data, plan how systems and processors will switch over lawfully, and update customer-facing notices if needed. Where appropriate, refresh your Privacy Policy and processor terms so they reflect the new ownership and any new legal entity handling personal data.

6) Think About People And Culture

Employees are at the heart of most small businesses. On asset deals, manage TUPE consultations with care and keep messaging consistent. On share deals, communicate change professionally and consider retention or bonus schemes where continuity is critical. Ensure contracts, handbooks and policies are up-to-date; if you’re hiring afresh, make sure each new starter has a compliant Employment Contract and appropriate policies.

7) Get Your Completion Logistics Right

Completion day runs smoothly when deliverables are clear and pre-agreed. Think keys, passwords, bank mandates, Companies House filings, stock counts, and meter readings. A practical completion checklist keeps everyone aligned and avoids last-minute scrambles.

8) Don’t Forget Post-Completion Actions

After completion, you’ll need to file relevant Companies House updates (e.g. PSC and officer changes for share deals), notify HMRC where required, switch over utilities and insurance, and confirm direct debit mandates. In asset deals, make sure all assignments are registered where necessary (e.g. updating trade mark ownership), and that supplier/customer billing details are correct to avoid cashflow hiccups.

Key Takeaways

• In a share sale, the buyer acquires the company “as is”, which helps with continuity but brings historic liabilities with it. In an asset sale, the buyer cherry-picks assets and usually leaves liabilities behind, but must manage assignments, novations and consents.
• Employees may transfer automatically on asset deals under TUPE; on share deals the employer stays the same but you should still plan people and comms carefully.
• Map out consents early. Watch for change-of-control clauses on share deals and assignment/novation requirements on asset deals, including landlord approval for leases.
• Tax can be decisive: consider stamp duty on shares, SDLT on property, VAT/TOGC, capital allowances and CGT reliefs. Get tailored advice before locking in heads of terms.
• Use the right documents. Share deals are governed by a Share Sale Agreement; asset deals by a Business Sale Agreement, with the necessary assignments and novations. Ensure IP and data are properly transferred and compliant.
• Strong due diligence, clear disclosure, and practical completion planning reduce risk and keep your timeline on track. A focused due diligence process and a robust completion checklist make a real difference.

If you’d like help choosing between a share sale and an asset sale - or need support drafting the contracts and handling consents - you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.