Business Purchase Agreement in the UK: For Buyers and Sellers

Buying or selling a small business is a big moment - exciting, but also full of moving parts. The contract that pulls it all together is the business purchase agreement.

Get this agreement right and you’ll lock in a smooth transfer with clear obligations, fair risk allocation and minimal surprises. Get it wrong and you could inherit hidden liabilities, lose key customers or face disputes that drain time and money.

In this guide, we break down what a business purchase agreement is, how it differs from a share sale, what to include, and the UK legal issues you can’t ignore (like TUPE, VAT/TOGC and assignment of contracts). We’ll keep it practical so you can move forward with confidence.

What Is A Business Purchase Agreement?

A business purchase agreement (often called an “asset purchase agreement” or “APA”) is the contract used to buy and sell the assets that make up a business, rather than the shares in a company. In an asset deal, the buyer chooses which assets and liabilities to take, and which to leave behind.

For small businesses, an asset deal can be attractive because it lets both sides tailor the deal: equipment, stock, website, trade marks, customer contracts, and goodwill are typically included; unwanted liabilities can be excluded.

The agreement sets out the price and payment mechanics, exactly what’s being transferred, warranties and indemnities, how employees are handled under TUPE, any conditions that must be met before completion, and what documents each party must deliver on completion day. A well-drafted Business Sale Agreement is essential to capture all of this clearly and to protect you from day one.

Two other documents commonly sit alongside the agreement:

• A disclosure letter (seller’s disclosures against the warranties).
• Ancillary transfer documents (for example, IP assignments, lease assignments, stock transfer forms for any shares in subsidiaries being included, and novation or assignment of key contracts).

Asset Deal Or Share Deal: Choosing The Right Structure

Before you dive into drafting, decide whether the transaction should be an asset purchase or share purchase. The structure drives tax, risk, consents, and the content of the agreement.

Asset Purchase (Business Purchase Agreement)

In an asset deal, the buyer acquires specified assets and (if negotiated) certain liabilities. The seller remains the same company or sole trader - you’re buying the business “parts,” not the corporate vehicle.

Pros for buyers:

• Pick-and-choose assets and liabilities.
• Potentially cleaner exit from historical liabilities.
• Possible VAT relief via TOGC if conditions are met (more below).

Pros for sellers:

• Flexibility to retain assets or lines of business.
• Can simplify negotiations around legacy liabilities.

Watch-outs:

• Contract-by-contract transfer. Third-party consents may be required to assign leases, supplier or customer agreements.
• Title and transfer logistics for each asset category (IP, domain names, plant, stock).
• Employee transfers under TUPE if the business is a going concern.

Share Purchase

In a share deal, the buyer acquires the shares of the company that operates the business. The company’s assets, liabilities, contracts and employees largely remain in place - it’s a change of ownership at the top.

Pros for buyers:

• No need for contract-by-contract assignments (usually fewer change-of-control hurdles, though some contracts still restrict this).
• Continuity for staff and customers.

Pros for sellers:

• Potential tax advantages depending on circumstances.
• Clean break - seller exits the company entirely.

Watch-outs:

• Buyer inherits all historical liabilities (hence heavy reliance on warranties, indemnities and due diligence).
• Complexity around tax and minority shareholders if the cap table isn’t simple.

If a share deal is on the table, you’ll be looking at a Share Purchase Agreement instead (we can also support with a Share Sale Agreement). Not sure which route suits your situation? It’s wise to get tailored advice on structure before you start negotiating, as it affects price, risk and timing.

Pre-Contract Steps And Due Diligence

Before you sign anything binding, protect your position and gather the facts. A few sensible steps upfront can save headaches later.

1) Put Confidentiality In Place

If you’ll be sharing financials, customer lists, recipes, code or other trade secrets, have a signed Non-Disclosure Agreement in place before you disclose. Keep disclosures limited to what’s necessary until diligence is complete.

2) Agree Heads Of Terms (Non-Binding)

A short-form term sheet sets expectations on price, assets included, deposits, exclusivity, target completion date, and any conditions precedent (like landlord consent or FCA permissions). A clearly drafted Heads of Agreement helps align the parties and speeds up the main contract.

3) Run Legal And Commercial Due Diligence

Thorough due diligence underpins a fair price and targeted warranties. Common areas include:

• Financials: revenue quality, margins, stock ageing, debtors/creditors.
• Contracts: change-of-control restrictions, key customer/supplier dependencies, termination rights.
• Assets: ownership, encumbrances, correct registrations, maintenance history.
• IP: trade marks, copyrights, domain ownership, licensing, open-source use.
• Employment: contracts, payroll compliance, disputes, handbooks, TUPE impact.
• Regulatory: licences and permits, health and safety, data protection compliance.
• Litigation: claims, complaints, insurance coverage.

Our team can help scope and run the checks you need with a targeted Legal Due Diligence review so you don’t miss red flags.

4) Plan The Transfer Mechanics

Map out what needs to change hands and how. Examples:

• Customer and supplier contracts: will you use novation or assignment?
• Premises: can the lease be assigned, or will you negotiate a new one? Read up on Assigning a Lease.
• Intellectual property: does the seller own the IP (not contractors)? You’ll likely need an IP Assignment.
• Licences and permits: what will transfer, and what must be re-applied for?

5) Consider Timing, Price Mechanism And Funding

Decide if you’ll use completion accounts (price true-up after completion) or a locked box (price fixed off a historic balance sheet date, with leakage protections). Factor in deposits, deferred consideration and earn-outs, and ensure funding lines up with the completion timetable.

What To Include In Your Business Purchase Agreement

Every deal is different, but most business purchase agreements cover the following core areas.

Scope Of Sale: Assets And Excluded Items

List exactly what’s included (and excluded). Typical inclusions are:

• Tangible assets: equipment, stock, furniture, vehicles.
• Intangible assets: goodwill, domain names, websites, software, social media handles, trade marks and other IP.
• Contracts: selected customer and supplier agreements (by assignment or novation).
• Records: books and records needed to operate the business.

Be specific: serial numbers, asset schedules and IP registries help avoid ambiguity.

Purchase Price And Payment Mechanics

Set out the headline price, deposits, how and when it’s paid, and any deferred or earn-out components. If using completion accounts, specify accounting policies, working capital targets and dispute resolution. If using a locked box, define leakage and permitted leakage clearly.

Conditions Precedent

Make completion conditional on key items such as landlord consent, material third-party consents, regulatory approvals, financing, and satisfactory TUPE consultation (if applicable). Include a long-stop date and allocation of responsibility to pursue consents.

Warranties And Indemnities

Seller warranties are statements of fact about the business (ownership of assets, contracts accuracy, compliance, disputes, tax, employees, IP). If a warranty proves untrue and you suffer loss, you can claim damages.

Indemnities are stronger protections for specific, identified risks (for example, an ongoing dispute, a tax risk, or product liability issue). Balance is key - buyers want comfort; sellers want caps, time limits and disclosure-based protection.

Disclosure Letter

This is where the seller qualifies the warranties by disclosing known issues. It’s a key risk allocation tool: buyers get transparency; sellers avoid being accused of misrepresentation where issues were clearly disclosed.

Employees And TUPE

Where a business is transferred as a going concern, the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) typically apply. TUPE protects employees’ existing terms and continuity of employment. In practice:

• Employees assigned to the business automatically transfer to the buyer on current terms.
• Dismissals connected to the transfer are risky and can be automatically unfair unless for an economic, technical or organisational reason entailing changes in the workforce (ETO reason).
• There are duties to inform and, in some cases, consult with employee representatives ahead of the transfer.

The agreement should set out who consults, who bears pre- and post-transfer liabilities, and how to handle accrued holiday pay, bonuses and pensions. If you’ll be issuing new contracts after completion, ensure a compliant Employment Contract template is ready.

For a broader overview of staff rights when you sell, see our guide to selling your business and employee rights.

Contracts, Leases And Licences

Clarify the process for transferring key relationships:

• Commercial contracts: will they be transferred by novation or assignment"Who obtains consent, and what happens if consent isn’t granted"
• Property: set the plan for lease assignment, subleases or new leases, and who pays landlord/legal fees. Our article on Assigning a Lease covers the typical steps.
• Licences and permits: set out which ones transfer and which must be re-applied for (think alcohol licences, environmental or industry-specific permissions).

Intellectual Property And Data

Make sure the buyer actually gets what they think they’re buying. Cover:

• Assignment of registered and unregistered IP, including trade marks, copyright in content and software, databases and domain names. Use an accompanying IP Assignment to perfect title.
• Contractor IP: confirm that any IP created by contractors has been assigned to the seller; if not, secure assignments at or before completion.
• Data protection: confirm compliance with the UK GDPR and Data Protection Act 2018, and ensure any necessary data sharing or processing agreements are in place; update privacy notices post-completion as needed.

Restrictive Covenants And Seller Assistance

Protect the value you’re buying with reasonable post-completion restrictions on the seller (for example, not soliciting customers or staff, and not competing within defined time and geography). Consider handover support (consultancy for a few months, introductions to key customers, training on systems).

Liability Caps, Time Limits And Procedures

Agree sensible limitations on warranty claims (caps, baskets, de minimis thresholds, time limits), notification procedures, and how disputes will be handled. These provisions are critical for both sides to quantify risk.

Completion Deliverables And Transitional Arrangements

List what each party must deliver on completion: director or owner approvals, resignation letters where relevant, stock take reports, keys and access codes, bank mandate changes, transfer forms, and ancillary documents. Consider transitional services if you’ll rely on the seller for systems or admin for a short period.

Tax, TUPE And Key Compliance Issues

Getting tax and regulatory compliance right up front avoids unpleasant surprises later.

VAT And Transfer Of A Going Concern (TOGC)

Business asset sales are often subject to VAT. However, if the sale qualifies as a transfer of a going concern (TOGC), VAT is not chargeable on the purchase price. Broadly, the buyer must use the assets to carry on the same kind of business, there mustn’t be a break in trading, and both parties should be VAT registered where required. Document the parties’ intentions in the agreement and ensure practical steps (like registration timing) line up. Our article on selling as a going concern covers the key points sellers and buyers weigh up.

Stamp Taxes And Property

If you’re taking over a lease or buying property, consider Stamp Duty Land Tax (SDLT). The agreement should allocate responsibility for any SDLT or Land Registry fees, and note who instructs conveyancers. If the deal includes vehicles, check any separate vehicle tax or registration requirements.

Consumer, Data And Sector Rules

• Consumer law: if you sell to consumers, you must comply with the Consumer Rights Act 2015 and related regulations on returns, refunds and advertising.
• Data protection: UK GDPR and the Data Protection Act 2018 apply to customer and employee data. Audit what data is being transferred and update privacy notices and records of processing activities; consider a data-sharing or processing schedule within the main agreement or as part of your GDPR Package.
• Regulatory licences: check if any FCA, alcohol, food, care, transport or other sector-specific licences are needed and how they transfer (or don’t).

Employees And TUPE (At A Glance)

As noted above, TUPE typically preserves employees’ terms and continuity. The agreement should:

• Identify transferring employees and any excluded individuals.
• Allocate responsibility for pre- and post-transfer liabilities and claims.
• Set the process and timing for information/consultation duties.
• Cover handover of personnel files in a GDPR-compliant way.

Contract Transfers: Consents, Novations And Assignments

Many contracts restrict change of control or assignment. Decide which approach each contract needs, who seeks consent, and what happens if consent can’t be obtained by completion. The difference between novation or assignment matters: assignment transfers rights (not obligations), while novation replaces the seller with the buyer for both rights and obligations (usually with the counterparty’s consent). Build appropriate conditions precedent and post-completion cooperation clauses into the agreement.

Leases And Landlord Approvals

Landlords often require formal consent processes and their own legal fees to be covered. Bake those steps and costs into your plan. If you can’t get consent in time, consider a short underlease or licence arrangement as a bridge, with clear back-to-back obligations and a deadline to complete the full assignment. Our explainer on Assigning a Lease outlines the typical sequence.

Intellectual Property And Brand Protection

Make sure the brand, domain names and trade marks move with the business and are enforceable in the buyer’s name at completion. If the seller’s company name contains the brand, require a change of name post-completion to avoid confusion, and implement the necessary IP Assignment documents.

Completion Mechanics And Transitional Support

Spell out exactly how completion will work: stock valuation method, handover of keys and codes, release of security interests, and switch-over of payments and subscriptions. If you’ll need the seller’s help for a short period (for example, to keep accounting software running or to keep licences in place while your new ones are processed), include a short transitional services schedule with scope, fees and duration.

Key Takeaways

• A business purchase agreement (asset purchase) lets you choose the assets and liabilities you transfer, but it requires careful planning for consents, TUPE and the logistics of moving each asset across.
• Decide early whether an asset deal or a share deal suits your goals, risk appetite and tax profile - the structure drives what goes into the contract and what diligence you need.
• Put a Non-Disclosure Agreement in place, agree a clear Heads of Agreement, and run targeted Legal Due Diligence to validate the price and focus your warranties and indemnities.
• Cover the essentials in the agreement: detailed asset schedules, clear price mechanics, robust warranties (with a fair disclosure process), TUPE handling, IP transfer, and pathways for contract and lease transfers (including novation or assignment and Assigning a Lease).
• Don’t forget VAT/TOGC, SDLT on property, and compliance with consumer and data protection laws - getting these right avoids unexpected costs or fines.
• Use tailored ancillary documents like an IP Assignment and a well-structured Business Sale Agreement so you’re protected from day one and the transfer is legally effective.

If you’d like help drafting or reviewing a business purchase agreement, or you want advice on structure, TUPE, tax and transfer mechanics, our friendly team is here to help. You can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.