Buying an existing business in London gives you instant access to established customers, revenue, a team, and a track record. It is often faster and less risky than starting from zero — but the process has its own complexity. This plain-English guide walks through how business acquisitions work in the UK market, where to find businesses for sale, and how to get the deal done.

UK Business Acquisition: How It Differs From the US

If you have experience of business acquisitions in the US, there are some important structural differences in the UK to understand:

Share Purchase vs Asset Purchase

In a share purchase, you buy the shares of the company itself — inheriting all its assets, contracts, liabilities, and history. In an asset purchase, you buy specific assets of the business (equipment, contracts, customer lists, intellectual property) without taking on the company entity. Share purchases are simpler for the seller (cleaner tax treatment) but carry more risk for the buyer (you inherit unknown liabilities). Asset purchases give the buyer more control over what they are taking on. Your solicitor will advise on which structure is appropriate.

Heads of Terms

Before the formal transaction documents are drafted, the parties typically agree a Heads of Terms (HoT) document — broadly equivalent to a Letter of Intent in the US. The Heads of Terms sets out the key commercial terms: purchase price, payment structure, conditions to completion, and any exclusivity period. Most Heads of Terms are not legally binding (except for exclusivity and confidentiality provisions).

Stamp Duty on Share Purchases

If you buy shares in a UK private company, you pay Stamp Duty at 0.5% of the purchase price. This is a significant cost on larger transactions and should be factored into your offer calculations. There is no Stamp Duty on asset purchases (though Stamp Duty Land Tax may apply if property transfers are included).

Where to Find Businesses for Sale in London

• Rightbiz (rightbiz.co.uk): One of the largest UK business-for-sale portals, with a strong London listings section across all sectors.
• BusinessesForSale.com: Global marketplace with a substantial UK and London section. Good for service businesses, retail, and hospitality.
• Christie & Co: Specialist business transfer agent particularly strong in hospitality, leisure, healthcare, and retail. Christie’s London team handles transactions across all price points.
• Daltons Business: UK-focused marketplace with broad coverage. Strong in food and drink, retail, and service businesses.
• Direct approach: Many London business owners are open to acquisition approaches that never appear on any marketplace. Reaching out directly to businesses in your target sector — with a credible introduction — can unlock off-market opportunities.

Due Diligence in the UK Context

Due diligence on a UK business is similar in principle to anywhere else — but there are UK-specific data sources that make it particularly thorough:

Companies House Records (Free)

Every UK limited company must file annual accounts and a Confirmation Statement with Companies House. These are publicly available for free at companies.house.gov.uk. You can see filed accounts, directors, shareholders, charges (loans secured against the company), and filing history. Check that accounts are filed on time (late filings are a yellow flag), that the director team is stable, and that there are no registered charges that would complicate the transaction.

VAT and PAYE History

Request VAT registration certificates and PAYE reference documentation as part of due diligence. Gaps or inconsistencies in VAT filing history can indicate cash management issues. Check whether the business has been involved in HMRC disputes or investigations.

HMRC Compliance

Ask for confirmation of Corporation Tax payment history. An HMRC clearance request (submitted by the seller’s accountants) can be made on certain transaction structures to confirm HMRC’s position before completion.

Financing a Business Acquisition in London

• British Business Bank: The BBB’s programmes include acquisition finance through accredited lenders. No direct lending but the Finance Hub (british-business-bank.co.uk) helps match buyers with appropriate lenders.
• Commercial banks: Barclays, HSBC, Lloyds, and NatWest all have specialist business acquisition lending teams for acquisitions above approximately £250,000.
• Private equity / management buyout finance: For larger transactions, PE-backed debt finance and management buyout structures are well-established in the London market.
• Vendor finance: In many London small business transactions, the seller provides a portion of the purchase price as a deferred payment or loan. This aligns incentives and reduces upfront capital requirements.

Legal Requirements

A solicitor is required for any business acquisition of meaningful size. The SBA’s guide to buying an existing business provides a useful framework for evaluating whether acquisition is the right path before you engage advisors. They will:

• Draft or review the Share Purchase Agreement or Asset Purchase Agreement
• Conduct legal due diligence (title searches, contract review, IP verification)
• Manage the completion process and fund transfers
• Handle any post-completion filings at Companies House and HMRC

Expect legal fees of £5,000-£25,000 for a small-to-mid-market London acquisition depending on complexity.

Typical Valuation Multiples in the London Market

• Service businesses (consulting, professional services): 2-4x EBITDA
• Retail businesses: 1-2x EBITDA, heavily dependent on lease terms and location
• Hospitality: 2-4x EBITDA depending on site quality and brand
• Tech and SaaS: 4-8x ARR at seed/SME scale, higher at growth stage
• Established professional practices: 0.5-1.5x gross fees (sector-dependent)

For guidance on structuring the business after acquisition, see our guide to starting a business in London and our London business lawyers guide for finding the right solicitor for your transaction.

Take the First Step

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