How To Prepare Your Business For Sale In The UK
How to sell your business in the UK

How to sell your business in the UK. The 12-month preparation guide
What business buyers actually look for and what kills deals at the last minute
A buyer sat across the table from a two million pound business last autumn. The accounts were clean. The revenue was growing. The owner had spent three years grooming the company for sale.
The deal collapsed in due diligence. Not because of fraud, or hidden liabilities, but because 73% of the revenue was tied to a single customer, and the buyer's lawyers spotted it before the owner thought to mention it.
This is not unusual. According to data from the UK's leading M&A advisers, more than one in three SME transactions fall apart after heads of terms are agreed, usually because of issues the seller never thought to address. This guide tells you exactly what buyers are looking for, how they think, and what you need to fix before you ever get to that table.
67% of UK SME owners have no formal exit plan, and most don't start preparing until they're already talking to buyers. By then, it's too late to fix the things that matter most.
How buyers actually think
Before we get into specifics, understand the buyer's mindset. Whether it's a trade buyer, a private equity firm, or a management buyout team, they are not buying your past. They are buying a version of the future that doesn't need you in it.
Every question they ask, every document they request, every meeting they take is answering one underlying question: if the current owner disappeared tomorrow, would this business still operate and grow? This is something I cover a lot in my book, “Go To $ell”.
The more the answer is yes, the higher the multiple they'll pay. The more the answer is 'it depends on the owner', the lower their offer, or the more onerous the earn-out.
Buyers don't pay for what you've built. They pay for what they believe they can extract from it -- without you.
The seven things serious buyers look for
1. Recurring, predictable revenue
Buyers price certainty. A business with 60% of revenue on subscription or retainer contracts will command a meaningfully higher multiple than one relying on project work and repeat goodwill. If you can demonstrate that revenue reoccurs without active selling, you've removed the buyer's biggest fear: revenue cliff. Before sale, move as much income as possible onto contracts, SLAs, or rolling retainers, even modest ones signal intent.
2. Customer concentration below 20%
The rule of thumb used by most private equity buyers: no single customer should represent more than 20% of revenue. Beyond that, it becomes a risk flag, and if your largest customer is 40% or more of turnover, expect the buyer to either discount the multiple aggressively or structure the deal with substantial deferred consideration tied to retention. If you have one dominant customer, the work is simple but not quick: you need to either grow other customers or diversify the revenue base before approaching the market.
3. A management team that doesn't need the owner
This is the single most common deal-killer in UK SME transactions. If you are the relationships, the key person, the one who handles the difficult clients, buyers see a business that starts depreciating the moment you leave. The fix isn't finding a replacement. It's building systems, documented processes, and empowered managers who make decisions without coming to you. Plan for at least 18 to 24 months to properly de-risk key-person dependency.
4. Clean, auditable financials
Buyers are not just looking at your P&L. They are looking at the gap between your management accounts and your statutory accounts. They are looking at how you've treated director drawings, company expenses, and add-backs. If your accountant has been helpful over the years in ways that make the EBITDA look better than it is, sophisticated buyers will find it, and they will price it in. Get three years of clean, consistently prepared accounts before you start any sale process.
5. A coherent growth story
Buyers are not just paying for today's earnings. They're paying for tomorrow's. If you can show a credible pipeline, a defensible market position, and two or three growth levers that a new owner could pull, you move from being valued on historic EBITDA to being valued on forward-looking potential. The business plan you write for a buyer should not be optimistic fiction. It should be grounded projection with evidence. Buyers will stress-test every assumption.
6. Intellectual property and competitive moat
What stops someone setting up tomorrow and taking your customers? This might be proprietary technology, a long-term contract, a hard-to-replicate team, a dominant local brand, or a unique process. If your only moat is 'we're good at what we do', that's a relationship, not a moat. Buyers want defensibility. Make sure your IP is properly owned by the company (not sitting in a founder's name), your contracts are assignable, and your key supplier relationships are documented.
7. A willing, prepared, emotionally ready seller
This one rarely appears in lists, but experienced M&A advisers will tell you it's critical. Sellers who haven't emotionally processed the exit create friction, delay decisions, and sometimes torpedo their own deal when reality sets in. The best transactions happen when the seller knows exactly why they're selling, what they're doing next, and what their financial requirements are. Clarity of intent is contagious, it reassures buyers that you're serious and won't change your mind at the eleventh hour.
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What kills deals at the last minute
Due diligence is where deals go to die. After weeks or months of negotiation, a buyer's legal and financial team conducts a forensic examination of everything you've told them. Here is what typically surfaces, and destroys value or kills transactions outright.
What buyers want to find:
• Contracts properly signed and filed
• IP owned by the company, not the founder
• PAYE and VAT up to date
• Employment contracts for all staff
• Clean Companies House record
• No undisclosed litigation
• Accurate customer revenue data
• Processes documented and transferable
What actually derails deals:
• Revenue concentrated in one customer
• Verbal agreements with key suppliers
• Director loans that look like profit extraction
• Employees on outdated or missing contracts
• HMRC enquiries or late filings
• Pending disputes you didn't disclose upfront
• Accounts that don't match the narrative
• Owner cannot step back during transition
The disclosure trap: Many sellers assume that disclosing a risk in a warranty schedule protects them and doesn't affect price. It does both. Anything you disclose that wasn't in the original Information Memorandum gives the buyer grounds to renegotiate. The best strategy is to fix problems before sale, not disclose them.
The earn-out problem, and how to avoid it
When buyers are nervous about risk, usually because of key-person dependency, customer concentration, or uncertain forward revenue, they structure deals with earn-outs. Typically, this means 50 to 70% of the consideration is paid on completion, with the remainder contingent on hitting revenue or profit targets in years one to three post-sale.
Earn-outs sound fair in principle. In practice, they are deeply problematic for sellers. You lose control of the business but remain accountable for the results. You are subject to decisions made by new owners who may have different priorities. And disputes about whether targets were hit -- or what caused them to be missed, are extremely common.
Anyone who has worked with me will have heard me say “Never enter into a gentleman’s agreement, in the event of a dispute there exists neither the gentlemen nor the agreement”
The best way to avoid a significant earn-out is to eliminate the conditions that make buyers nervous. That means fixing the seven factors above, ideally 18 to 24 months before you intend to sell.
What buyers are actually paying in the UK right now
Valuation multiples vary significantly by sector, size, and quality. Here are the ranges for UK SME transactions in 2025:
Professional services (accountancy, legal, consulting): 4 to 7x EBITDA, depending on recurring revenue and client concentration
Technology and SaaS businesses: 6 to 12x revenue or 8 to 15x EBITDA for high-growth businesses with strong retention
Manufacturing and engineering: 4 to 6x EBITDA, with a premium for proprietary products and long customer relationships
Recruitment: 5 to 8x EBITDA, with strong discounts applied for owner-dependent billers
Healthcare and care services: 6 to 9x EBITDA, driven by regulatory barriers to entry
Retail and hospitality: 3 to 5x EBITDA, highly variable by site quality and lease terms
These are headline ranges. The businesses that achieve the top of these ranges all share one thing: they have spent time preparing. They are not selling from distress or necessity. They are selling from a position of strength, with clean financials, strong management teams, and a compelling growth story.
The difference between a 4x and a 7x deal is almost never sector. It's preparation.
The 12-month preparation plan in brief
If you're planning to sell in the next one to three years, here is where to focus your energy:
Months 1 to 3: Get a professional valuation. Understand your current multiple and what the gap is to the top of your sector range. Fix your accounts, clean up add-backs, director drawings, and any informal arrangements.
Months 3 to 6: Address customer concentration. Win new clients, diversify revenue, move customers onto formal contracts. Begin the process of systematising your role.
Months 6 to 9: Build or strengthen your management team. The goal is that a buyer can see the business operating without you. Document key processes, train your people to make decisions, and step back gradually.
Months 9 to 12: Prepare your Information Memorandum. Engage an M&A adviser. Identify your preferred buyer profile, trade, PE, or MBO -- and begin selective outreach. Do not go to market until you are ready.
The bottom line
Business buyers are not adversaries. The best deals happen when buyer and seller are both fully prepared, transparent, and aligned on what's being sold. It really is that simple.
The best thing you can do right now is find out where you actually stand. Not where you think you stand, where a buyer would score you today.
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About the author
Stuart Mason -- Exit Guide for Small Businesses, Best Selling Author, Founder
Stuart has advised over 200 UK business owners through the growth sale process over the last 20 years. He is the author of TWO best sellers “How To Wreck Your Business” and “Go To $ell” and founder and creator of the UK's newest and hottest SME exit planning programme, “Go To $ell – The Business Exit Blueprint”. His Business Exit Readiness Score has already been used by more than 500 business owners to benchmark and improve their exit position. Stuart’s style is abrupt and streetwise, delivering exactly what exiting business owners need.











