M&A

M&A Due Diligence Checklist 2025 — The Complete Deal Room Guide

A comprehensive M&A due diligence checklist covering legal, financial, operational, and HR documents. Download and use this checklist to structure your next deal room.

PN

Priya Nair

M&A Operations Lead · February 3, 2025 · 12 min read

The M&A Due Diligence Checklist for 2025

Effective due diligence is the difference between a successful acquisition and an expensive mistake. This checklist covers the standard document categories that should be organized in any M&A data room.

1. Corporate & Legal Documents

  • Certificate of Incorporation and all amendments
  • Bylaws / Operating Agreement
  • Board resolutions and minutes (past 3 years)
  • Shareholder agreements and cap table
  • All regulatory licenses and permits
  • Outstanding litigation, claims, and disputes
  • Insurance policies

    • 2. Financial Documents

  • Audited financial statements (past 3–5 years)
  • Management accounts (past 12 months)
  • Financial projections and underlying assumptions
  • Accounts receivable and payable aging reports
  • Debt schedule and financing agreements
  • Tax returns (past 3 years)
  • Capital expenditure history

    • 3. Customer & Revenue

  • Top 20 customers by revenue (anonymized if necessary)
  • Customer contracts and MSAs
  • Churn rates and revenue retention metrics
  • Pricing history and discount policies
  • Sales pipeline and CRM data

    • 4. Intellectual Property

  • Patent portfolio (granted and pending)
  • Trademark registrations
  • Copyright registrations
  • Software source code ownership
  • Open-source license compliance review
  • IP assignment agreements from founders and employees

    • 5. People & HR

  • Organizational chart and headcount by function
  • Key executive employment contracts
  • Compensation and bonus structure
  • Employee equity / option grants
  • Non-compete and non-solicitation agreements

    • 6. Operational Documents

  • Key vendor and supplier contracts
  • Material customer contracts
  • Facility leases and real estate
  • IT infrastructure overview
  • Cybersecurity and data privacy policies
  • Disaster recovery and business continuity plans

    • How to Structure Your Data Room

    We recommend organizing documents in a numbered folder structure aligned to this checklist:

  • 1. Corporate
  • 2. Financial
  • 3. Customer & Revenue
  • 4. Intellectual Property
  • 5. People & HR
  • 6. Operational
  • 7. Legal & Compliance
  • 8. Management Presentations

    • Space Nexus auto-suggests this folder structure when you create a new M&A deal room, and our AI document processor can automatically categorize uploaded PDFs into the right folders.

    Pro Tips for Sell-Side Teams

  • . **Start early** — Begin compiling documents 3–6 months before the launch
  • . **Redact carefully** — Anonymize commercially sensitive customer data in early rounds
  • . **Stage access** — Give preliminary information to all bidders, then detailed access only to shortlisted buyers
  • . **Use activity analytics** — Track which buyers are most engaged to prioritize your outreach
  • . **Set up Q&A early** — A well-managed Q&A process signals professionalism and builds buyer confidence

    • Ready to set up your data room?

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