How Much Does It Cost to Sell a Business in the UK? (2026 Guide)

The Question Every Business Owner Asks First

If you are thinking about selling your business, the very first question on your mind is almost certainly: "What will it cost me?"

It is a fair question — and one that too many business brokers dodge. At Transition 360 Partners, we believe you deserve a straight answer. So here it is: a transparent breakdown of every cost involved in selling a business in the UK in 2026.

The Short Answer

For a typical UK SME sale handled by a professional broker, you should expect total costs of between 5% and 12% of the final sale price, depending on the size and complexity of the deal. For a business selling at £500,000, that means roughly £25,000 to £60,000 in total fees and costs.

But that headline number hides a lot of nuance. Let us break it down.

1. Business Broker Fees

This is usually the largest single cost. Most UK business brokers charge in one of three ways:

Fee Structure	Typical Range	How It Works
Success fee only	5%–10% of sale price	You pay nothing unless the business sells. The broker takes a percentage at completion.
Retainer + success fee	£2,000–£10,000 retainer + 3%–8% success fee	A monthly or upfront retainer covers the broker's costs, with a lower success fee at completion.
Fixed fee	£5,000–£50,000+	A flat fee agreed upfront, regardless of sale price. More common for larger deals.

What affects the percentage? The smaller the business, the higher the percentage tends to be. A business selling for £200,000 might attract a 10% fee (£20,000), while a £5 million sale might be 3%–5% (£150,000–£250,000). This is because the amount of work involved is similar regardless of deal size.

Our approach at T360P: We operate on a success-fee basis for most mandates, meaning you only pay when your business sells. We believe this aligns our interests with yours — we only succeed when you do.

2. Legal Fees

You will need a solicitor experienced in business sales. This is not optional — the Sale and Purchase Agreement (SPA) is a complex legal document that protects your interests.

Typical cost: £3,000–£15,000+ (depending on deal complexity)
What drives the cost up: Multiple properties, complex intellectual property, earn-out structures, warranties and indemnities
What keeps it down: Clean company structure, straightforward asset sale, experienced solicitor who has done this before

3. Accountancy Fees

Your accountant will need to prepare completion accounts, advise on tax structuring, and potentially produce a vendor due diligence pack.

Typical cost: £2,000–£10,000
Tax planning: If you qualify for Business Asset Disposal Relief (formerly Entrepreneurs' Relief), you could pay just 10% Capital Gains Tax on the first £1 million of qualifying gains. Your accountant's advice here could save you tens of thousands.

4. Valuation Costs

A professional business valuation gives you (and potential buyers) confidence in the asking price.

Typical cost: £1,500–£5,000 for a formal valuation report
Free alternative: Many brokers, including ourselves, offer a free initial valuation as part of the engagement process

5. Marketing and Advertising

Getting your business in front of the right buyers costs money — though most brokers include this in their fee.

Business-for-sale portals: £500–£2,000 per listing per year (Daltons, BusinessesForSale.com, RightBiz)
Targeted outreach: Most brokers handle this at no extra cost
Information Memorandum preparation: Usually included in broker fees, but can cost £1,000–£3,000 if commissioned separately

6. Hidden Costs People Forget

These are the costs that catch sellers off guard:

Management distraction: The sale process typically takes 6–12 months. During this time, your attention is split. If revenue dips because you are focused on the sale, the business could be worth less at completion.
Staff retention: If key employees leave during the process, it can reduce the business value significantly.
Warranty claims: Post-completion warranty claims can cost thousands if the SPA is not drafted carefully.
Earn-out risk: If part of your payment is deferred (an "earn-out"), you are effectively lending money to the buyer with no guarantee of full payment.

What About Selling Without a Broker?

You can sell your business privately, and some owners do. You will save the broker fee (5%–10%), but consider what you lose:

Access to buyers: A good broker has a database of thousands of qualified buyers. We have over 65,000.
Confidentiality: Without a broker as intermediary, your staff, customers, and competitors may learn about the sale prematurely.
Negotiation expertise: Experienced brokers typically achieve 10%–30% higher sale prices than private sellers.
Time: Expect to spend 15–25 hours per week on the sale process for 6–12 months.

For most business owners, the broker fee pays for itself many times over.

A Realistic Cost Example

Here is what a typical £750,000 business sale might look like:

Cost Item	Amount
Broker success fee (6%)	£45,000
Legal fees	£7,500
Accountancy and tax advice	£4,000
Valuation report	£2,500
Marketing (included in broker fee)	£0
Total estimated costs	£59,000
Net proceeds (before tax)	£691,000

With Business Asset Disposal Relief, the Capital Gains Tax on £691,000 of qualifying gains would be approximately £69,100 (at 10%), leaving you with roughly £621,900 in your pocket.

The Bottom Line

Selling a business is not cheap, but it should not be a mystery either. The total cost typically runs 8%–12% of the sale price when you include all professional fees. The key is understanding what you are paying for and ensuring every pound spent is working to maximise your final proceeds.

Want to know exactly what selling your business would cost? Get a free, confidential valuation [blocked] from our team. We will give you an honest assessment with no obligation and no hidden fees.

This article is part of our "They Ask, We Answer" series, where we address the questions business owners ask most frequently. If you have a question we have not covered, get in touch [blocked] — we will answer it honestly.

Real Client Example: What It Actually Cost

One of our recent clients, the owner of Precision Engineering Ltd in the Manufacturing sector, sold their business for £3.2M in 6 months. Their total costs broke down roughly as follows:

Broker success fee: Based on our standard sliding scale (5% on the first £1m, reducing thereafter)
Legal fees: Approximately £8,000–£12,000 for a transaction of this size
Accountancy fees: Around £3,000–£5,000 for tax planning and completion accounts
Due diligence preparation: Minimal — we handled the information memorandum and data room

The owner's net proceeds after all costs were significantly higher than they would have achieved selling privately, because our competitive bidding process attracted multiple qualified buyers.