Selling a founder led business: the 5 cracks buyers attack first
A buyer opens due diligence on a founder led business through the same five cracks every time: dependence on the founder, customer concentration, quality of earnings, hidden legal or tax liabilities, and the robustness of the team and systems. Each one, once confirmed, becomes a discount, an earn out, or a warranty you carry personally. You close them one to two years before the sale, not during due diligence, while there is still time to change the numbers.
When a serious buyer opens your file, they are not trying to fall in love with your company. They are looking for reasons to pay less, or not to pay at all. In a founder led business those reasons are almost always the same, and a seasoned buyer running disciplined acquisition analysis knows exactly where to look. They work through them in a set order, because each one, once confirmed, knocks down the price or shifts a warranty onto your shoulders. Knowing these five lines of attack lets you defuse them a year or two before you sell, while there is still time to change the numbers. It is also what separates the SMEs and startups that sell well from those that sell cheap.
1. Dependence on the founder
This is the first question, sometimes asked over the first coffee. What happens to this business if you step away for three months and touch nothing? If the answer is an awkward silence, the buyer has just found their main lever. A company where the founder signs the proposals, holds the key client relationships alone, approves every quote and is the only one who knows the real margins is not a company. It is a well paid job. And a job does not sell at 5 or 6 times EBITDA.
The buyer does not pay for what you do. They pay for what keeps running once you are gone.
The test they run is simple. They take your ten largest customers and ask who on the team handles each one day to day. If your name comes up more than three times, expect an earn out clause that holds back 20 to 40 percent of the price over two or three years, tied to your staying on and to client retention. The defense is built in advance. Document the processes, formally hand the major accounts to your team, and make sure the last six months of numbers were delivered without your direct involvement.
2. Customer concentration
The second line of attack is arithmetic. The buyer adds up what your three largest customers contribute to revenue. If one of them is worth more than 20 percent, or the trio passes 50 percent, that risk becomes their central concern. Losing a single contract could wipe out the profitability they have just bought. A business with 4 million in revenue where one client is worth 1.2 million is not worth the same as another, also at 4 million, spread over forty accounts, even at identical EBITDA.
They go further than the raw percentage. They ask how long the relationship has lasted, whether a written contract exists, how much of the term is left to run, and whether the client is tied to you personally or to the company. A large client with no contract, managed by the founder, is the worst possible case. The defense takes time. Diversifying takes years, securing takes months. Getting your major accounts to sign multi year contracts, even on unchanged terms, turns a dependency into an asset.
3. Quality of earnings
Next comes the line by line examination of your EBITDA. The buyer does not trust the headline number; they normalize it. Out go the one off items you booked as recurring, back come the costs you avoided but a successor will have to carry. I have watched a headline EBITDA lose a third of its value in an afternoon of adjustments, without a single figure being wrong, simply reset to market. In a family run business, that normalization almost always holds unpleasant surprises.
- Owner salary: if you pay yourself 80,000 euros while a hired managing director would cost 180,000, the buyer deducts 100,000 euros from your EBITDA. It is a real cost they will have to bear.
- Private spending booked as business expense: car, travel, thinly documented entertainment. Stripped out, it shrinks the valuation base, and worse, it dents your credibility on every other line of the accounts.
- Rent between you and your own property company: a below market rent inflates EBITDA artificially and gets corrected to market.
- One off income: a large non recurring order or a windfall gain has no place in the normalized earnings the multiple is applied to.
Every 50,000 euro adjustment on an EBITDA valued at 5 times takes 250,000 euros off the price. The defense is to clean up your accounts at least two financial years before the sale. Take out the private items, normalize your salary, separate recurring earnings clearly from the exceptional. A buyer pays a premium for numbers they can read, because clean numbers lower their risk.
4. Legal and tax blind spots
After the numbers, the buyer digs for hidden risk. These are not problems that show up on the balance sheet, but latent liabilities that can surface after the deal closes. They look for change of control clauses in your customer contracts and your lease, the kind that let a partner walk away the day you sell. They check who actually owns your brand, your website, your code. It is not unusual for the logo or the domain to still sit with the founder personally, or with an agency that was never properly paid.
They also go through employment contracts, overtime that was never provisioned, contractors who could be reclassified as employees, and VAT and social security compliance over several years. A single quantifiable reassessment turns into either a price holdback in an escrow account or a liability warranty you carry personally for five years. The defense is a mock audit. Have your own adviser hunt for these flaws before the buyer does, because what you disclose yourself gets negotiated, while what they uncover costs you dearly.
5. Robustness of team and systems
The last line of attack is more qualitative, but it is decisive for the final multiple. The buyer judges whether the business can run without daily heroics. Is there a second line of management able to hold the fort? Does the key information live in systems, or in the heads of three irreplaceable people? Are margins known by product and by customer, or estimated as a whole once a year? A business that is readable and properly delegated sells at a higher multiple, because the buyer sees a short transition and low risk.
The truth is that these five lines of attack cannot be fixed during due diligence. By that point, every flaw is ammunition in the buyer’s hands. They are fixed upstream, over a year or two, while you still have time to delegate a client relationship, get a contract signed, clean up a financial year or provision a risk. The sale price is not decided on the day of the deal. It is built across the years that lead up to it.
The first step is simply to know, honestly, where your own flaws sit across these five dimensions, and which of them will cost you the most. Our structured exit readiness self assessment, built for SMEs and startups, gives you that picture in a few minutes and tells you where to start to protect your price before due diligence begins.
Key points
- A buyer pays for what keeps running without you, not for what you do: a business dependent on its founder sells like a job, not an asset.
- One customer worth more than 20 percent of revenue, or a top three above 50 percent, reads as risk and pulls the price down regardless of EBITDA.
- Buyers always normalize EBITDA: a market salary for you, private costs stripped out, one off income isolated. Every 50,000 euro adjustment cuts 250,000 euros off a 5 times valuation.
- What you disclose gets negotiated; what the buyer uncovers costs you dearly. A mock audit beats a five year liability warranty.
- All five cracks are fixed upstream, over a year or two, never during due diligence.
Frequently asked questions
When should I start preparing my business for sale?
Ideally one to two years before you launch a process. Most of the levers that protect the price, delegating a key account, getting a multi year contract signed, cleaning up two financial years, take months to show up as credible numbers. Starting six weeks before the first buyer means negotiating with every crack wide open.
How do I keep the earn out small?
An earn out is the buyer’s insurance against your departure, so the less indispensable you are, the smaller it gets. If your largest accounts are run by the team and the last six months of results were delivered without you, the buyer has little ground to hold back 30 percent of the price over three years. Founder dependence sets the size of the earn out, not how well you negotiate on the day of signing.
Can a single large client really lower the valuation?
Yes, even when EBITDA looks strong. The buyer thinks in risk: losing that contract would wipe out the profit they are buying, so they apply a discount or demand a warranty. A signed multi year contract, even on unchanged terms, does not diversify your base but it noticeably lowers that perceived risk.
Why normalize EBITDA before selling?
Because the buyer will do it anyway, and rarely in your favor. They add the cost of a salaried director if you pay yourself below market, strip out private spending and one off income, and correct below market rents. Present accounts that are already clean over two years: they earn a premium, while numbers the buyer has to restate breed suspicion about everything else.
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