Most business owners look at their year-end accounts and see a healthy profit. They apply a multiple to it that they heard at a networking event, found online or from a friend, and assume that is their exit price.
In the current market, that logic isn’t just dangerous; it is totally unrealistic.
With the Bank of England base rates expected to rise this year, the “cost of money” is still a primary driver for acquirers. Whether they are Private Equity houses or trade buyers, they are no longer just looking at your top line. They are looking for reasons to de-risk their investment and get the best possible value.
In M&A terms, this is called a Price Chip. We have put together a list of five silent killers currently knocking 10% to 20% off SME valuations before the share purchase agreement (SPA) is even in draft. Don’t get caught out with these common issues; make sure you are prepared.
1. The ‘Founder Trap’ (Owner Dependency)
This is the most common value killer in the £500k–£10m bracket. If you are still the primary point of contact for your top three clients, or if every major operational decision requires your sign-off, you aren’t selling a business; you’re selling a job.
- The Consequence: A buyer will either heavily discount their valuation or insist on a long “earn-out” period where you are tied to the business for a longer term while you hand over responsibility, train a replacement and prove the business can then run without you.
2. Customer Concentration Risk
If more than 20% of your revenue comes from a single client, you have a concentration problem. In 2026, lenders are incredibly sensitive to this. If that one client leaves, the buyer’s ability to service the debt they used to buy your business vanishes.
- The Fix: Start diversifying before you sell. Even a slightly lower profit margin is preferable to a high-risk, single-source revenue stream when it comes to the final valuation multiple. Long-term contracts with main clients also negate this risk; getting these agreements early should be a key consideration.
3. Poor ‘Quality of Earnings’
Buyers pay for maintainable profit. If your EBITDA (Earnings Before Interest, Tax, Depreciation, and Amortisation) is propped up by one-off projects, Covid-era grants that haven’t been fully phased out, or discretionary personal spending through the business, an experienced auditor will find it.
- The Warning: Aggressive add-backs (trying to add personal expenses, think football season tickets or work done on your home, back into the profit) often backfire. They signal to the buyer that your books are creative, which can trigger a deeper, more painful Due Diligence process or make the buyer walk away completely.
4. Weak Data and ‘Shadow AI’ Risks
A new entry for 2026: Data Governance. Buyers are now scrutinising how SMEs use AI. If your staff have been using unapproved AI tools to handle sensitive business or client data (Shadow AI), you could potentially be sitting on a GDPR and intellectual property nightmare.
- The Impact: Incomplete staff handbooks with strict AI guidelines, a lack of proprietary IP, and little to no training can lead to significant indemnity demands that eat into your take-home cash.
5. Working Capital Inconsistencies
Many owners focus on the headline price but forget that the deal usually assumes a normalised level of working capital stays in the business. If your credit control is lax and your aged debtors are creeping up, a buyer will view this as a cash-flow risk.
- The Result: Buyers will adjust the final payment downward to cover the collection risk of your unpaid invoices. Spending the time to make sure your working capital is measured and under control is a must. Do not take it for granted.
What to do Next…
Valuation is an art, but Due Diligence is a science. The business selling market belongs to the well-prepared. By identifying these value killers one to two years before you go to market, you aren’t just tidying your books; you are actively building a business that helps you reach the valuation that you want to achieve.
Are you considering selling your business and don’t know where to start? At TIG Corporate Finance, we perform strategic reviews to identify these common issues and put a plan in place to get your business in the best possible position for a successful sale.
Click here to book a confidential call with one of our trusted and experienced corporate advisors.
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