Purchase of Business Agreement: Buying a Company or Assets in the UK

Buying a business can be the fastest way to grow, enter a new market, or skip the pain of starting from scratch. But whether you’re acquiring a local café, an e‑commerce store or a service firm, the deal will live or die by the contract that documents it - your purchase of business agreement.

Get this agreement right and you’ll know exactly what you’re buying, what risks you’re taking on, and how and when the handover happens. Get it wrong, and you could inherit hidden debts, lose key customers on day one, or pay for assets you never receive.

This guide breaks down the essentials under UK law in plain English. We’ll explain the common deal structures, what a purchase of business agreement needs to cover, and the practical steps to run a smooth acquisition - so you’re protected from day one.

What Is A Purchase Of Business Agreement?

A “purchase of business agreement” is the main contract that records the terms of your acquisition. It sets out what you’re buying, how much you’ll pay and when, the seller’s promises about the business (warranties), any protections for specific risks (indemnities), and the mechanics for completion and handover. In UK practice, the exact document name depends on the structure:

• Share deals are documented with a Share Sale Agreement (you buy the shares of the company that owns the business).
• Asset deals are documented with a Business Sale Agreement (also called an asset purchase agreement), where you buy selected assets and rights.

Both approaches use a similar legal “toolkit”, but they allocate risk differently. Your purchase of business agreement is the roadmap for the entire transaction - from locking in the price and deposits to transferring employees and securing landlord or customer consents. It’s also your safety net if anything the seller promised turns out to be untrue.

It’s common to start with heads of terms (a simple summary of the deal) and confidentiality. If you’re reviewing the seller’s accounts or customer lists, make sure a robust Non-Disclosure Agreement is in place before information is shared.

Share Sale Vs Asset Sale: Which Structure Fits Your Deal?

Before you draft anything, decide whether you’re buying the shares in the company (a share sale) or the business assets from the company (an asset sale). The choice affects tax, risk, employees and how complex the handover will be.

Share Sale (Buy The Company)

In a share sale, you step into the shoes of the existing shareholders. The company itself carries on with all of its assets, employees, contracts and liabilities as before - you just own it.

• Pros: Typically simpler operationally (no need to retitle assets or re‑paper every contract), continuity for customers and staff, potential to preserve licences and permits that are in the company’s name.
• Cons: You inherit all liabilities (known and unknown), so warranties, indemnities and a thorough legal due diligence process are critical. Stamp Duty at 0.5% applies to the consideration for shares.

Asset Sale (Buy The Business Assets)

In an asset sale, you pick and choose what you acquire - for example, stock, equipment, brand, domain name, customer contracts and goodwill - and you usually leave unwanted liabilities behind.

• Pros: Cleaner way to avoid legacy liabilities, flexibility to exclude problematic contracts or assets, often clearer tax treatment of specific assets.
• Cons: Transfers can be administratively heavier: each asset may need a separate transfer, third‑party consents can be required (landlord, key customers or suppliers), and you’ll need to address employee transfers under TUPE. VAT may apply unless treated as a transfer of a going concern (TOGC).

How To Decide

Your choice will turn on risk appetite, tax advice, the state of the target’s contracts and licences, and how easily property and key agreements can be transferred. If the business relies on a lease or contracts that can’t be assigned, a share sale may be the only practical route. If the seller’s company has historic liabilities you don’t want, an asset sale may be safer.

Talk to both your accountant/tax adviser and a lawyer early - deal structure impacts the entire agreement and timetable, from TUPE consultations to whether you’ll need landlord consent for assigning a lease.

What Should Your Agreement Cover? Key Clauses Explained

Your purchase of business agreement should give you clarity and protection. The exact drafting will be tailored to your deal, but these are the headline areas small business buyers typically need.

What You Are Buying (And What You Aren’t)

Spell out the assets included - for example: plant and equipment, stock, domain names, website, social media handles, trade marks, customer and supplier lists, and goodwill. If it’s a share sale, list the shares and classes being transferred and confirm the company owns the business assets in full.

Equally important: list excluded assets or liabilities. On an asset sale, you might exclude historic debts, certain litigation, or a vehicle the owner keeps.

Purchase Price And Adjustments

State the price and how it will be paid (deposit, completion cash payment, deferred payments or earn‑outs). Address price adjustments - for example, a completion accounts mechanism to true‑up working capital or stock valuation after handover. We cover mechanics and tax in the next section.

Conditions Precedent

Conditions are “must‑happen” items before completion (closing) can occur. Common conditions include:

• Landlord consent to assign the lease, or an agreement for lease for new premises.
• Third‑party consents for key customer or supplier contracts, or for software licences.
• Regulatory approvals (for example, sector‑specific licences).
• Bank consent to release charges or security over the assets.

Warranties (Seller’s Promises)

Warranties are statements by the seller about the business - for example, that the accounts are true and fair, taxes are paid, assets are owned free of third‑party rights, key contracts are valid, and there’s no undisclosed litigation. If a warranty is untrue, you may have a claim for breach of warranty to recover loss.

The seller will usually disclose exceptions in a disclosure letter. Read it carefully; anything properly disclosed will typically limit your ability to claim.

Indemnities (Specific Risk Protections)

Indemnities allocate known risks - for example, an indemnity for any HMRC liabilities up to completion, or for a threatened IP dispute. Unlike warranties, indemnities usually allow pound‑for‑pound recovery for the covered loss, so they’re powerful protections where appropriate.

Restrictive Covenants And Non‑Solicit

You don’t want the seller to set up across the road or poach your team. Include reasonable non‑compete and non‑solicit restraints (scope, geography and duration must be no wider than necessary) to protect the goodwill you’re buying.

Employees And TUPE

On an asset sale, the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) will often transfer employees to you automatically on their existing terms, with continuity preserved. You’ll need to inform and, in some cases, consult with employees (or their representatives) before completion. In a share sale, the employer doesn’t change, so TUPE usually isn’t engaged, but employees’ employee rights still need careful handling.

Make sure the agreement sets out who pays what for pre‑completion holiday accruals, bonuses, or disputes, and how employee liabilities are apportioned.

Property And Leases

If the business operates from leased premises, you’ll need landlord consent or a new lease. Build in a clear process and a longstop date for consent; consider a fall‑back (such as sub‑licensing) if consent is delayed. Buying the freehold? Your agreement should dovetail with the property transfer documents and any lender requirements.

Key Contracts And Customer Relationships

Customer and supplier contracts can be the lifeblood of a business. Some can be assigned; others require consent or novation. Your agreement should list which contracts must transfer and whose responsibility it is to secure consents. Where a third party won’t agree to transfer, consider a transitional arrangement with the seller while you put a new contract in place. For a deeper dive, see the difference between novation or assignment.

Intellectual Property And Data

Confirm ownership and transfer of IP (brand names, trade marks, designs, copyright in website content, software, product formulas), including any registered rights and applications. Ensure social media, domains and marketplaces are included. If the business processes customer data, align with UK GDPR and the Data Protection Act 2018 - for example, include obligations around lawfully transferring personal data and updating privacy notices.

Completion And Handover

Set out what happens on completion day: money flow, documents to be delivered, and practical handover (keys, passwords, point‑of‑sale systems, accounting access). A clear completion checklist helps prevent last‑minute surprises.

Price, Tax And Completion: How The Money And Handover Work

Even a straightforward small business purchase involves a few moving parts when it comes to price mechanisms, tax and completion logistics. Here’s how to think about them.

Deposits, Deferred Payments And Earn‑Outs

• Deposit: An initial non‑refundable deposit can secure exclusivity while you finalise due diligence and contracts (usually subject to agreed conditions).
• Deferred consideration: Part of the price paid over time, sometimes linked to seller support or retention risks.
• Earn‑out: A portion of the price payable only if the business hits agreed revenue or profit targets post‑completion. Define the performance metrics and who controls the business during the earn‑out period.

Completion Accounts Vs Locked Box

• Completion accounts: Price is adjusted after completion based on actual stock, cash, debt and working capital at closing. Good where values are volatile or stock is material.
• Locked box: Price is fixed by reference to a historical balance sheet date, with safeguards against “leakage” of value to the seller between that date and completion. Often used where the business has stable financials and clean records.

Tax Considerations

Tax drives value and structure, so get tax advice early. At a high level:

• Share sales: Stamp Duty at 0.5% is payable by the buyer on the consideration for shares. No VAT is typically chargeable.
• Asset sales: VAT may apply unless the sale qualifies as a transfer of a going concern (TOGC). TOGC treatment can be valuable for both parties but requires strict conditions (e.g., the buyer is VAT‑registered and uses the assets to carry on the same kind of business).
• Apportionment: In asset deals, apportion the price across asset classes (goodwill, stock, equipment, IP) for accounting and tax. Stock is often valued at cost on completion.

Build the agreed tax treatment into the agreement and ensure both parties align their filings accordingly.

Practical Completion Mechanics

On completion day, expect a series of document exchanges and funds flows. Your agreement should clearly require the seller to deliver, for example:

• Duly executed transfer documents (share transfers or asset assignments) and board/shareholder resolutions under the Companies Act 2006.
• Keys, passwords, and administrator access to systems, websites and accounts.
• Stocktake records and title documents for assets.
• Landlord consents or new leases and any required licences or permits.
• Resignations of outgoing directors (in a share sale) and releases of charges or security.

A well‑planned completion pack minimises downtime and ensures a clean handover for customers and staff.

Step-By-Step: Running A Smooth Small Business Acquisition

Every deal is unique, but this practical sequence works well for most small business purchases.

1) Secure Confidentiality And Agree Heads Of Terms

Put a robust NDA in place before any sensitive information is shared. Then map the commercial deal in short, non‑binding heads of terms: what’s being sold, the price, structure (share or asset), key conditions, target completion date, exclusivity and deposit. This keeps everyone aligned while you move into diligence and drafting.

2) Run Targeted Due Diligence

Focus on the risks that really matter to value and continuity: financial performance, ownership of assets and IP, customer contracts and churn, supplier dependencies, employment liabilities, property leases, licences and compliance, and any disputes or debts. A tailored legal due diligence process helps surface issues early so you can fix them or price them in.

3) Choose Your Structure And Timeline

Agree on share vs asset sale with tax and legal input. Build your timetable around regulatory or third‑party consents - for example, landlord approval for assigning a lease or customer consent for transferring a major supply agreement. If TUPE applies, plan for the required information and consultation steps with employees ahead of completion.

4) Draft The Purchase Of Business Agreement (And Schedules)

Your lawyer will prepare the main agreement and the supporting schedules: asset lists, contracts to be transferred, employee lists, price allocation, restrictive covenants, and the warranty suite. The seller prepares a disclosure letter to qualify the warranties. Where existing contracts must move across, line up the right paperwork (for example, a short-form novation if applicable). If shares are being sold, ensure the correct share transfer documents and stock transfer forms are included.

5) Align On Completion Mechanics

Map the money flow (including deposits, retention or escrow if used), agree the completion deliverables and sign‑off the completion checklist. If there’s an earn‑out, agree the performance metrics and how financials will be measured. For asset deals, confirm VAT/TOGC and the price apportionment schedule.

6) Close And Handover

On completion, funds are transferred and documents exchanged. Hand over keys, passwords and operational control, and communicate with staff and customers. In a share sale, update the company’s statutory registers and notify Companies House as needed. In an asset sale, complete any post‑completion assignments still outstanding.

7) Post‑Completion Steps

Tick off the tidy‑up: notify HMRC and your accountant of the acquisition, update website terms, privacy notices and supplier arrangements, migrate data lawfully under UK GDPR, and ensure insurance and licences are in your name. Where the seller is helping with a handover, set clear scope and timeframe in a short transitional services schedule.

Common Pitfalls To Avoid

• Vague asset lists: If it’s not listed, you may not acquire it. Be specific about IP, data, domains and social handles.
• Assuming contracts transfer automatically: Many require consent or a formal novation or assignment.
• Underestimating TUPE: Factor in consultation timelines and costs, and clearly apportion pre‑completion employee liabilities.
• Weak restraints: Over‑broad non‑competes risk being unenforceable; tailor scope, geography and duration to what’s genuinely needed.
• No plan for landlord consent: Build realistic timeframes and fall‑backs when assigning a lease.
• DIY documents: Off‑the‑shelf templates rarely fit real‑world deals. A tailored Business Sale Agreement or Share Sale Agreement is worth it to protect your position.

Key Takeaways

• A purchase of business agreement is your blueprint for the deal - it defines what you’re buying, how the price works, and the protections you get if things aren’t as promised.
• Choose between a share sale and an asset sale early. Share sales keep operations simple but transfer all liabilities; asset sales let you cherry‑pick assets but require more transfers and consents.
• Build in robust protections: clear asset lists, tailored warranties and indemnities, reasonable restrictive covenants, well‑defined conditions precedent, and practical completion and handover steps.
• Plan for TUPE, property and contracts. Employees may transfer automatically on asset deals; leases and key customer/supplier contracts often need landlord or third‑party consent or formal assignment.
• Get price mechanics and tax right. Consider deposits, deferrals or earn‑outs; decide on completion accounts vs locked box; address VAT or TOGC on asset deals and Stamp Duty on share deals.
• Run a structured process: NDA and heads of terms, focused legal due diligence, tailored drafting, and a tight completion checklist will keep the acquisition on track.
• Avoid assumptions. Contracts don’t always transfer, landlord consent can take time, and generic templates won’t reflect your risks. Get the right documents in place from day one.

If you’re planning a business purchase and want clear, fixed‑fee help to draft or review your purchase of business agreement, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no‑obligations chat.