Most business owners find out they should have started exit prep much earlier. According to Harvard Business Review research, the M&A failure rate is somewhere between 70% and 90% . Many businesses go to market and try to sell, and a lot of entrepreneurs haven’t done formal exit planning before listing. The cost? Rushed negotiations, founder dependency discounts, and financials that make buyers nervous. Most advisors say 18–24 months of preparation is the sweet spot, long enough to fix what’s broken, show consistent performance, and get buyers competing for your company. This isn’t retirement planning. It’s about building a business someone actually wants to buy.
Key highlights
- Research published by Harvard Business Review puts the M&A failure rate somewhere between 70% and 90%.
- Succession planning should begin at least 18–24 months before your desired exit
- Founder-dependent businesses take a hit on valuation; some industry sources suggest independent businesses sell for 7 – 8x EBITDA while highly dependent companies may struggle to get 3 – 4x multiples.
- Quality of Earnings reports, or broader vendor due diligence, help you find problems before buyers do, which usually means higher prices.
- Acquinox Advisors can guide you through the process early one so you’re prepared for buyers early on.
The gap most owners never see coming
You’ve spent two decades building a business. Solid revenue, healthy margins. Your accountant thinks it should fetch a decent EBITDA multiple. You hire advisors in January, expecting to close by summer. Then things get uncomfortable.
The first buyer’s due diligence team starts asking questions faster than you can answer them. Why did gross margin drop last quarter? Who owns the relationships with your top clients? What happens if you step away for sixty days? Your bookkeeper left last year and reconciliations are a mess. The buyer’s Quality of Earnings report flags add-backs they don’t like. Customer analysis shows 57% of revenue comes from two accounts.
The buyer doesn’t walk. They restructure the deal. Your expected cash-at-close becomes something more complicated: less upfront, earn-outs tied to customer retention, rolled equity, and a two-year employment agreement at below-market pay to “ensure continuity”.
This isn’t a worst-case scenario, you can still sell. But clearly not an ideal deal and this happens all the time in middle-market M&A when sellers aren’t ready.
Why prepare 18 – 24 Months in advance, not just 3 or 6 ?
Creating a solid exit plan can take up to 18 months. Growing the company’s value to hit your target number? Often longer. The first 18 months should be sufficient to fix the structural problems buyers use to justify paying you less. The rest builds the track record that commands better prices.
The Maths of rushing It
Six months isn’t enough time. You can’t show sustained improvement in key metrics. You can’t meaningfully reduce customer concentration. You can’t prove the business runs without you. You walk into negotiations with less leverage, and buyers know it.
What 18–24 months actually gets you
Full audit cycles with time to address findings. Multiple quarters of consistent performance. A management team that looks capable. Tax planning that’s actually implemented. And critically: enough runway to get multiple buyers interested, so you’re not stuck negotiating with whoever showed up first.
For guidance on how to prepare a company for sale, a structured approach helps.
Sometimes the best move is entering the market now. But often, investing 12–24 months in getting ready pays off. Being exit-ready means building a business that’s attractive, transferable, and can survive buyer scrutiny.
The Four-Phase Roadmap
Phase 1: Figure out where you stand (months 18 – 24)
The first ninety days won’t feel great. You’re finding out what buyers will find out, just early enough to fix it. Start with a comprehensive business valuation to know your baseline.
Ask yourself honestly:
- Can you produce accurate financials for the past thirty-six months within two weeks?
- If your top customers show concentrated revenue, a Quality of Earnings report will flag this as a discount. The profitability numbers won’t matter.
- If you disappeared for sixty days, would revenue, operations, and customer satisfaction stay stable?
Get the diagnostics done:
Business owners preparing to sell should get a Quality of Earnings report early. The best time is 6–12 months before going to market. That gives you time to fix issues and clean up financial reporting. Finding problems now means you’re not explaining them to buyers later.
Phase 2: Fix what matters (months 12 – 18)
Diagnostics done. Now you actually do the work.
Clean up the EBITDA
A Quality of Earnings report focuses on Normalised EBITDA, looking for anomalies, questionable add-backs, and operational risks. It picks apart revenue quality including leakage, aggressive recognition policies, concentration problems.
Understanding the difference between EBIT and EBITDA matters here, since EBITDA is the basis for most valuation methods.
Add-backs need documentation: above-market owner pay, one-time legal or consulting fees, non-recurring repairs, personal expenses that run through the business. To get through a QoE without haircuts:
- Reconcile everything. 24 months. To the penny.
- Document every personal or one-time expense. Keep receipts.
- Make sure revenue recognition matches when you actually delivered the work.
- Have explanations ready for monthly margin swings.
Spread the revenue
According to Wall Street Prep, “a customer that contributes more than 10% of total revenue, or the top five customers contributing more than 25%, are deemed potential red flags.” You don’t need to fire your biggest customer; you need to grow everywhere else so they’re a smaller percentage. Target new segments. Set minimum contract values. Diversify within existing accounts. Build recurring revenue.
Phase 3: Make yourself less essential (months 6–12)
This is the hard part. You’re deliberately making yourself replaceable and counterintuitively, this makes your company worth more. The founder dependency problem is real: Businesses where everything runs through the founder sell for less. Sometimes a lot less. According to industry data, founder-dependent businesses get valuations well below market comparables. Independent businesses in the lower middle market might get 7 – 8x EBITDA while founder-dependent ones struggle for 3 – 4x.
Key person discounts typically fall between 5% and 25%, though appraisers have wide discretion. In bad cases, the discount can be much higher.
How to reduce the risk:
- Transfer customer relationships to team members. Document the handoffs.
- Give managers real decision-making authority. Not just titles.
- Write down not just how you do things, but why, so people can make decisions without you.
- Cross-train. No single points of failure.
- Build tracking systems that run without you checking in.
Phase 4: Get Ready to Sell (Months 0 – 6)
By now, the business should run without you. Financials are clean. Customers are spread out. Processes are documented. This phase prepares your defence for whatever issues remain and sets up a competitive sale. A solid due diligence process from your side can get ahead of buyer concerns.
Your sell-side Quality of Earnings report:
With a QoE already done, you can speed things up by giving buyers reliable financial analysis from a credible third party. The report shows you’ve already found and addressed issues. If it flagged customer concentration or revenue recognition problems, you’ve (hopefully) fixed them.
A sell-side QoE often leads to higher prices because most M&A deals are valued on earnings multiples. Better earnings quality = better valuation.
Understanding valuation multiples helps you see where your business stands relative to industry norms.
What waiting actually costs you
The owner who says “we’ll see how things go this year” often regrets it. On a $10 million expected valuation, a meaningful discount isn’t just retirement lifestyle money, it can be generational wealth left on the table.
According to Harvard Business Review, the M&A failure rate runs between 70–90%. Life events, market shifts, or unexpected offers can change your timeline overnight. The difference between being ready and scrambling? Often hundreds of thousands of dollars.
Why three months won’t cut It
The best time to sell is when you don’t have to. When you’ve spent 18–24 months building a business buyers actually want, you walk into negotiations with options. You’re not desperate for any deal; you’re picking from the deals available.
| Unprepared exit | Prepared exit |
| Scrambling to find any buyer | Building relationships with the right buyers |
| Limited competition | Multiple qualified bidders |
| Issues found during due diligence | Issues found and fixed beforehand |
| Price renegotiation, deal restructuring | Price more likely to hold |
| Earn-outs, rolled equity, messy terms | Cleaner terms, less contingent consideration |
| Long employment agreements | Transition on your terms |
Results vary based on market conditions, your business, and plenty of other factors. But the pattern holds.
When you’re ready to explore options, contact Acquinox Advisors’ company sale advisory services to guide you through the process.
