Due diligence checklist: investment

Legal due diligence checklist for an investment in an established business, for a company which has a trading history and may also act as the parent company for a group of companies.

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When do I use this document?

  • for the legal due diligence for an investment transaction
  • where the subject company is an established business and has a trading history
  • as initial requests for the company to answer and provide supporting documents

What are the key features?

  • requests in tabular form, with the company’s answers to be inserted in the table
  • requests covering 10 key subject areas, including:
    • corporate
    • contracts
    • litigation and compliance
    • assets
    • intellectual property
    • commercial property
    • employees
    • finance and insurance
    • taxation

What other documents are available?

For a form of due diligence checklist for the investment in a start-up business, see

When do I use this document?

  • for a company’s statutory registers, also known as statutory books or company books.
  • for a private limited company.
  • for company registers which will be stored electronically.

What are the key features?

  • easy to complete statutory register template.
  • registers of:
    • members (shareholders).
    • share allotments.
    • share transfers.
    • directors.
    • company secretary.
    • directors’ residential addresses.
    • charges.
    • people with significant control (PSC Register).

What else do I need to know?

Companies Act 2006 requires a company to prepare and maintain certain statutory registers, including:

  • a register of directors and secretary and a separate register of directors’ residential addresses.
  • a register of members.
  • a register of charges (if created prior to 6 April 2013).
  • unless exempt, a register of people with significant control (a PSC Register).

These registers, often called the company’s statutory books, must be kept either at the company’s registered office or at another specified address.

Most of these registers can be inspected by the public on payment of a fee. The register of directors’ residential addresses is not available for public inspection.

The registers can be held in electronic form.

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Updated by a lawyer on 21/07/2025

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