Skip to main content

Insight article

February 2, 2026

The role of due diligence in corporate transactions

In corporate transactions, due diligence is a key stage that usually follows agreement of Heads of Terms, allowing the Buyer to investigate the target company or its assets before committing to the deal.

magnifying glass and papers

In the world of corporate transactions, the term due diligence is frequently used, but its meaning and importance can sometimes be overlooked. Due diligence is a critical phase that typically follows the agreement of Heads of Terms between the Buyer and Seller. It is the Buyer’s opportunity to investigate the target company or its assets in detail before committing to the purchase.

What is due diligence?

Due diligence is essentially an information-gathering exercise conducted by the Buyer to assess the true state of the target’s business or its assets. The goal is to verify whether the agreed purchase price accurately reflects the company’s or the assets’ financial health, legal standing, operational risks, and future prospects.

This process allows the Buyer to uncover any hidden issues that could affect the value or viability of the deal.

The Seller’s role in due diligence

While due diligence is led by the Buyer, the Seller plays a crucial role. The Seller must provide comprehensive and accurate documentation to support the Buyer’s review. This typically includes:

  • Financial records (e.g. audited accounts, management accounts, forecasts)
  • Legal documents (e.g. articles of association, shareholder agreements)
  • Material contracts (e.g. supplier, customer, lease agreements)
  • Employment information (e.g. contracts, benefits, disputes)
  • Intellectual property and compliance records
  • Real estate (e.g.  leases and title to property)

These documents are usually uploaded to a secure online data room, where the Buyer’s advisers can access and review them systematically.

The duration of due diligence can vary depending on the complexity of the target business and the responsiveness of the Seller. Delays in providing requested documents or resolving identified issues can extend the timeline, so early preparation is key.

Common issues uncovered during due diligence

Due diligence can reveal a range of issues, such as:

  • Undisclosed liabilities (e.g. pending litigation, tax exposures)
  • Outdated or non-compliant employment contracts
  • Inconsistencies in financial reporting
  • Missing or invalid intellectual property registrations

Identifying these risks early allows the Buyer to mitigate exposure, either by renegotiating the deal terms or requesting specific protections. 

How Buyers respond to findings

If the Buyer uncovers concerns during due diligence, they may:

  • Renegotiate the purchase price; or
  • Request indemnities to cover specific risks; or
  • Seek additional warranties in the Share Purchase Agreement (SPA) or Asset Purchase Agreement (APA).

These protections are designed to shift risk back to the Seller if certain issues materialise after completion.

The outcome of due diligence

Once the Buyer and their advisers are satisfied with the information provided, the transaction can progress to the next stage of finalising the SPA or APA. However, it is important to note that disclosure is an ongoing process. New information may continue to emerge and be addressed right up until the agreement is signed and if the Seller becomes aware of anything during the process which it thinks ought to be disclosed, such as pending litigation, it should make the Buyer aware. 

Due diligence is not just a formality; it is a vital safeguard for Buyers and a test of transparency for Sellers. A well-managed due diligence process can build trust, clarify expectations, and lead to a smoother and more successful transaction. For Sellers, being organised and proactive can help maintain momentum and avoid unnecessary renegotiations or delays.

How can we help?

Due diligence works best when it is well planned, well managed and properly interpreted. We support Buyers in scoping enquiries, reviewing findings and assessing how issues should be reflected in the deal terms. We also support Sellers in preparing for disclosure, running an efficient data room process and responding to enquiries in a way that maintains momentum and reduces the risk of late-stage renegotiation. Speak to our head of corporate and commercial, Victoria Holland, today.

About the author

Zarenna Porter is a solicitor in the Corporate and Commercial department. Her work spans a wide range of corporate and commercial matters, including acquisitions and disposals, share buybacks, company reorganisations and the drafting and negotiation of commercial contracts and agreements. She has supported businesses operating across different sectors, tailoring her advice to suit the distinct needs of both sole traders and larger corporate entities.

Stay in touch

Subscribe to our newsletter

Stay in touch

By completing your details and submitting this form you confirm you are happy for us to send you marketing communications and that you agree to our Website Privacy Policy and Legal Notice and to us using Mailchimp to process your data.


Sending

News/Insight

  • The do’s and don’ts of using AI in your business
    AI can help businesses improve efficiency and make informed decisions, but it also comes with risks. Explore the key do’s and don’ts of using AI responsibly, including data protection, legal considerations and the importance of human oversight.


    Read more
  • Next equal pay appeal: when can market pressures justify different pay
    When can recruitment and retention pressures justify different pay? Karen Cole explores the Next equal pay appeal, explaining why equal pay risks remain and what employers should consider when reviewing pay packages and the evidence supporting their


    Read more
  • Domestic Abuse Protection Orders: where are they available and what other protection can you seek?
    Domestic Abuse Protection Orders can offer tailored protection, but availability is currently limited. Pippa Marshall explains how they work, who can apply and the other protective orders available, including non-molestation and occupation orders.


    Read more
  • Missing beneficiaries and unknown heirs: what should executors do?
    What should an executor do if someone entitled to inherit cannot be found? James McMullan explains how to trace missing beneficiaries, the limits of statutory notices and the options to consider before distributing an estate.


    Read more
  • Pay transparency in recruitment: Is your business ready to disclose salaries?
    Employers may eventually have to provide salary information much earlier in the recruitment process under proposals being considered by the Government.


    Read more

What they say...

  • Bryan E, September 2026
    Absolutely outstanding “This firm is super professional, efficient and friendly at the same time. You could not wish for a better service. I have used them for my Will and a range of other matters over many years. I’ve found all the vario

  • Jan Norris, September 2026
    Excellent Service “Charlotte Barbaroussis has prepared our wills, LPAs and a discretionary trust. She was professional, kind and patient throughout. A very fine person to have looking after us.”

  • Brian Nunan, August 2026
    “I dealt with the group for many years, and no matter which solicitor I used, the results were always the same. Excellent!”

  • Client, July 2026
    Constructive and empathetic “I contacted Pippa Marshall at RIAA Barker Gillette through a recommendation regarding a family law matter. Pippa was always clear, efficient, empathetic and helpful, offering constructive insights on my situation. I

  • Dino, July 2026
    A lucky professional meeting! “We had an excellent professional experience to recommend to all those who need legal help in the UK.”

Read more
Send this to a friend