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Business Law

Buying a Business

Last updated: 22 March 2026Typical cost: £2,000 - £10,000+

Quick Summary

Buying a business is one of the largest financial commitments you can make. Legal due diligence is essential to uncover hidden liabilities, verify contracts, and protect your investment. A specialist business acquisition solicitor typically costs between £2,000 and £10,000 depending on the size and complexity of the deal.

Asset Purchase vs Share Purchase

There are two main ways to buy a business: an asset purchase and a share purchase. In an asset purchase, you buy specific assets of the business — such as equipment, stock, customer contracts, the trading name, and goodwill. You do not buy the company itself, so you generally do not inherit the company's debts or liabilities (with some important exceptions, particularly around employee rights under TUPE).

In a share purchase, you buy the shares of the limited company that owns the business. The company continues to exist with all its assets, contracts, employees, and liabilities. This means you inherit everything — including any unknown debts, tax liabilities, or legal claims. Share purchases require more extensive due diligence to uncover potential problems.

Asset purchases are generally preferred by buyers because they offer more control over what you acquire and limit your exposure to historical liabilities. Share purchases are often preferred by sellers because they are cleaner (one transaction transfers everything) and may attract more favourable tax treatment through Capital Gains Tax Business Asset Disposal Relief (formerly Entrepreneurs' Relief).

Your solicitor will advise on the best structure based on the specific circumstances. Key factors include the tax implications for both parties, the nature of the business's contracts (some may not be assignable), employee considerations under TUPE, and any regulatory licences that may not be transferable.

The Purchase Process Step by Step

The business purchase process typically follows a structured sequence. It begins with heads of terms (also called a letter of intent), which is a non-binding document setting out the key commercial terms agreed between buyer and seller, including the price, what is being purchased, any conditions, and the proposed timeline. Although mostly non-binding, heads of terms usually include binding confidentiality and exclusivity provisions.

Due diligence then takes place, with your solicitor and accountant examining the business in detail. The length of this process depends on the size and complexity of the business — it can take anywhere from 2 weeks for a simple asset purchase to 3 months for a complex share purchase. Your accountant will focus on financial due diligence (verifying the accounts, tax position, and profitability), while your solicitor handles legal due diligence.

The purchase agreement is then drafted and negotiated. For an asset purchase, this will be a Business Purchase Agreement. For a share purchase, it will be a Share Purchase Agreement (SPA). Both will contain detailed warranties and indemnities from the seller about the state of the business. Warranties are statements of fact that, if untrue, entitle you to claim damages. Indemnities are promises to compensate you pound-for-pound for specific losses.

Completion is the day the deal closes. The purchase price is paid (often through your solicitor), shares or assets are transferred, and you take control of the business. There is often a post-completion period for transitional support from the seller, handover of passwords and systems, and notification to customers and suppliers.

How Much Does It Cost to Buy a Business?

Legal fees for buying a business depend on the deal structure and complexity. For a straightforward asset purchase of a small business, legal fees are typically £2,000 to £5,000. For a share purchase with full due diligence, expect to pay £5,000 to £10,000 or more. Very large or complex transactions can exceed £20,000 in legal fees.

In addition to your solicitor, you will need an accountant to carry out financial due diligence and advise on the tax structure of the acquisition. Accountancy fees for due diligence typically range from £2,000 to £8,000. A business valuation, if you need one, costs £1,000 to £5,000 depending on the size and complexity of the business.

Stamp duty is payable on share purchases at 0.5 percent of the purchase price. For asset purchases, stamp duty may apply to any property being transferred (at standard SDLT rates) and potentially to goodwill. Your solicitor and accountant will advise on the specific tax implications.

If you are borrowing to fund the acquisition, your lender will usually require their own legal review, which adds to the cost. They may also require personal guarantees, security over the business assets, and specific conditions to be met before releasing funds. Factor in all of these costs when deciding on your budget for the acquisition.

Protecting Yourself After the Purchase

The purchase agreement should include comprehensive warranties from the seller covering all material aspects of the business. Key warranties include confirmation that the accounts are accurate and not misleading, that there are no undisclosed liabilities, that all material contracts have been disclosed, that the business is not involved in any litigation, and that it is compliant with all relevant laws and regulations.

You should also negotiate specific indemnities for known risks identified during due diligence. Unlike warranties (where you need to prove loss), indemnities provide pound-for-pound compensation for specified liabilities. Common indemnities cover tax liabilities arising before completion, environmental liabilities, and the cost of resolving specific issues identified during due diligence.

A retention or escrow arrangement is common, where a portion of the purchase price (typically 10 to 20 percent) is held in a solicitor's escrow account for a period after completion (usually 12 to 24 months). This gives you a readily available fund to claim against if warranty or indemnity claims arise. Without this, you would have to pursue the seller personally, which can be difficult if they have moved abroad or spent the proceeds.

Non-compete and restrictive covenants should prevent the seller from setting up or working for a competing business for a specified period (typically 2 to 3 years) and within a specified geographical area. These clauses must be reasonable to be enforceable, and your solicitor will advise on appropriate scope and duration.

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Disclaimer: This page provides general information about the law in England and Wales. It is not legal advice and should not be treated as such. Every situation is different, and you should consult a qualified solicitor for advice specific to your circumstances.

Buying a Business? Legal Steps & Due Diligence (2026) | The Solicitor Directory