Resource · M&A · 2026

M&A Due Diligence Checklist for 2026

A practical, downloadable M&A due diligence checklist covering all 12 diligence areas, plus how to run it without chasing documents by email.

By Mathias Celis, Co-Founder, AlkmistLast updated June 20269 min read

TL;DR

An M&A due diligence checklist organises every document a deal needs into tracked areas: corporate, financial, tax, legal, commercial, HR, IT, IP, property, compliance, insurance, and environmental. Download the free Excel template below, or run the same list live in Alkmist so nobody chases by email.

Download the checklist

M&A Due Diligence Checklist template (Excel)

A ready-to-use checklist across 12 diligence areas, with status dropdowns, owner and due-date columns, and an automatic progress summary. Free, no sign-up.

Download the template (.xlsx)

Prefer to work in a spreadsheet? The template mirrors the checklist below. Prefer to run it live, with automated follow-up and secure client uploads? That is what the Alkmist portal does.

What an M&A due diligence checklist covers

An M&A due diligence checklist is a structured list of the documents and information a buyer needs to review, organised by area, each item tracked with an owner, a due date, and a status.

Diligence succeeds or stalls on whether every request is tracked. A good checklist groups requests by area, assigns an owner and a due date, and shows status at a glance, so nothing is missed before signing.

The 12 diligence areas

Each area below is a section in the downloadable template.

  • 01Corporate & structure

    Incorporation docs, cap table, board minutes, group structure, subsidiary agreements.

  • 02Financial

    Audited statements, management accounts, projections, AR/AP ageing, debt agreements.

  • 03Tax

    Corporate returns, VAT filings, authority correspondence, transfer pricing.

  • 04Legal & contracts

    Material contracts, litigation schedule, standard terms, guarantees.

  • 05Commercial & customers

    Top customers, churn data, pipeline, pricing strategy.

  • 06HR & employment

    Employee census, key contracts, pension schemes, collective agreements.

  • 07IT & data

    Systems overview, GDPR records, cybersecurity, software licences.

  • 08IP

    Registered IP, licensing agreements, domains and brand assets.

  • 09Property & assets

    Leases and title deeds, fixed asset register, capex commitments.

  • 10Compliance & regulatory

    Licences and permits, regulatory correspondence, AML policies.

  • 11Insurance

    Policy schedule, claims history.

  • 12Environmental

    Permits and assessments, health and safety records.

How to run it without email chaos

A checklist in a spreadsheet still has to be chased. Running the same list in a portal turns each item into a tracked request that chases itself: automated follow-up, secure client uploads, party isolation between counterparties, and a live status view.

That is the difference between a template and a workflow. Start with the download, and when the email chasing gets old, run it in Alkmist.

EU
Data residency
ISO 27001
Certified
8
Permission roles
8,000+
Users on Alkmist

Frequently asked questions

What is an M&A due diligence checklist?
A structured list of the documents and information a buyer needs, organised by area (corporate, financial, tax, legal, and so on), each item tracked with an owner, due date, and status.
Is the template free?
Yes. The Excel template is free to download with no sign-up, and covers all 12 diligence areas with status dropdowns and a progress summary.
What are the main due diligence areas?
Corporate and structure, financial, tax, legal and contracts, commercial, HR, IT and data, IP, property, compliance, insurance, and environmental.
How is running the checklist in Alkmist different from the spreadsheet?
Alkmist turns each checklist item into a tracked request with automated follow-up, secure client uploads, and party isolation, so the list runs itself instead of being chased by email.

See Alkmist in action

Run your diligence checklist live

See how Alkmist turns the checklist into a tracked, secure workflow. Book a demo.