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The Ultimate Sales Due Diligence Checklist for M&A Founders
Don't risk your valuation. Use our 5-Pillar Sales Due Diligence Checklist to audit your M&A Sales Strategy, prove Revenue Predictability, and secure the best exit multiple.
The Ultimate Sales Due Diligence Checklist for M&A Founders
Founders, CEOs, and M&A Leaders: You’ve built the technology, you’ve secured the revenue, and now the buyers are circling. Your focus has to shift from building value to proving it. The greatest risk to your multi-million-pound exit is not in your code or your accounts; it’s in your sales function.
The buyer's finance and commercial diligence teams don't care about your potential; they care about certainty. They are looking for reasons to reduce the multiple. This definitive Sales Due Diligence Checklist is your weapon to proactively address every sales system red flag and Secure the Best Exit Multiple.
The Value Proposition is simple: The integrity of your sales machine determines the size of your cheque.
Introduction: The 7-Figure Valuation Reduction Trap
In UK and EMEA M&A, the sales engine is the primary source of Exit Valuation Risk. A buyer's assessment of your sales process directly influences the purchase price and the deal structure. If your revenue growth is seen as unpredictable, or relies on "heroics" and key individuals, the buyer will discount the valuation, potentially by seven figures.
The goal of your preparation should be a proactive Revenue Predictability Audit. You need to show that your revenue is not just growing, but that it is repeatable, scalable, and verifiable. This is the only way to avoid the trap of over-reliance and secure a high multiple.
Need to de-risk your M&A exit now? Before you proceed with this checklist, get an expert opinion on your current sales maturity.
Get a Free 1:1 Review of Your Due Diligence Checklist with Matt Earle.
The 5 Critical Pillars of Sales Due Diligence
M&A due diligence generally includes reviews of sales, customers, and revenue by customer, product line, and geography. Our framework breaks the sales diligence process into five critical pillars. Your ability to answer the following questions with irrefutable data is the key to demonstrating a low-risk, high-value asset.
Pillar 1: Revenue Predictability & Forecasting
This pillar proves that your future revenue is not a forecast, but a mathematical certainty. Buyers focus heavily on the predictability of ARR (Annual Recurring Revenue) and subscription revenues, as this translates directly to higher exit valuations.
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Churn and Retention: Can you provide churn analysis and customer retention metrics over the last three years, segmented by customer size and product line?
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Forecast Accuracy: What has been your average forecasting accuracy over the last 12 months, and is this data verifiable by a third party or audited accounts?
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Pipeline Integrity: Does your sales pipeline accurately reflect buyer-verified milestones, or is it inflated with opportunities that lack definitive commitments?
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Revenue Recognition: Is your revenue recognition support clear and fully compliant with local UK standards for the three-to-five-year look-back period?
Pillar 2: Process Systemisation & Audit Readiness
The buyer wants to acquire a process, not just a team. This section of the Sales Due Diligence Checklist ensures your sales motion is documented, measurable, and repeatable.
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Defined Stages: Are your sales pipeline stages (e.g., Discovery, Solution Design, Negotiation) clearly documented with mandatory exit criteria for each?
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Playbook Documentation: Do you have a documented Playbook for Discovery, Value Proposition, and Objection Handling that is actively used and coached across the team?
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Sales-Marketing Alignment: Are there clear SLAs (Service Level Agreements) between Sales and Marketing to guarantee lead quality and Predictable Revenue flow?
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Pricing Model Integrity: Is the pricing and discounting model standardised and enforced, or does it vary widely based on individual salesperson negotiation?
Pillar 3: Customer Base & Concentration Risk
Concentration risk is a major red flag that can significantly lower the valuation multiple. Buyers will closely examine customer retention and product concentration.
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Customer Concentration: What percentage of your Total Revenue is represented by your top 5 customers, and are there any change-of-control clauses in their contracts?
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Customer Switching Costs: Are customer contracts structured with switching costs (technical or contractual) that mitigate the risk of post-acquisition attrition?
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Channel Agreements: Are all channel partnerships, distributor agreements, and referral arrangements documented, current, and transferable?
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Customer Satisfaction: Can you provide verifiable customer satisfaction metrics and churn rates that prove customer success is embedded in the operational model?
Pillar 4: People & Leadership Structure
The buyer needs assurance that the revenue engine won't seize up when the Founder exits. This addresses retention and the depth of Fractional Sales Leadership expertise.
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Compensation Alignment: Is your sales compensation plan aligned with retention goals (e.g., based on renewal value, not just first-year bookings)?
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Key Personnel Dependency: Is the pipeline success dependent on a few key individuals, or are the top performers coaching and using a scalable system?
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Contract Integrity: Are all employee and contractor agreements current, documented, and compliant with UK employment law?
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Succession Plan: Is there a clear, documented plan for transitioning management and Fractional Sales Leadership responsibilities post-acquisition?
Pillar 5: Technology & Data Integrity (CRM Audit)
Your CRM is the data room for sales due diligence. Inaccurate or incomplete data can be a deal breaker, justifying a price reduction.
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CRM Data Verification: Can you prove that your Sales Pipeline and forecasts are backed by auditable data points within the CRM (e.g., clear contact logging, updated deal values)?
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Tech Stack Documentation: Is your entire sales tech stack (CRM, enablement tools, marketing automation) documented, including vendor agreements, financial cost, and licenses?
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Data Governance: Are data protection and privacy compliance protocols (like UK GDPR) formally documented and auditable?
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Data Quality: What is the measured quality of your data—e.g., the percentage of contacts with valid phone numbers, or the accuracy of your Ideal Customer Profile (ICP) data?
WARNING: If you cannot answer at least 80% of the questions above with auditable data, your Exit Valuation Risk is significantly elevated. This signals to the buyer that your growth is luck, not process.
The Final Step: Moving Beyond the Checklist
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Completing this Sales Due Diligence Checklist is essential preparation. However, preparing the documents and verifying the data are two different challenges. Buyers expect to scrutinise your last three years of reports and cash flow forecasts. Having everything documented upfront is key to reducing the risk of delays or renegotiations.
If you're a Founder who wants to Secure the Best Exit Multiple, you must bring in a specialist operator to run the Revenue Predictability Audit and fix the flaws before they are exposed by the buyer.
A specialist in M&A Sales Strategy can help you:
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De-risk key contracts that may adversely affect the company if terminated.
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Ensure strong performance data that reassures buyers of scalability.
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Integrate systems that eliminate operational inconsistencies post-acquisition.
Don't let an avoidable sales system weakness cost you millions. Get expert guidance and turn your sales process into a verifiable asset.