What is Due Diligence?

Definition

Due diligence is the comprehensive investigation undertaken before completing an acquisition, investment or financing transaction. Its purpose is to verify information provided by the seller, identify risks and opportunities, and support informed decision-making.

The process typically covers financial, commercial, legal, tax, operational, IT, cyber and ESG matters, depending on the nature of the transaction. Buyers use due diligence to validate financial performance, assess contractual obligations, understand operational risks and evaluate future growth prospects.

Increasingly, vendors also commission vendor due diligence reports before launching a sale process to anticipate buyer questions and facilitate a smoother transaction.

Why it matters

Effective due diligence reduces uncertainty, improves negotiation outcomes and helps prevent unexpected issues after completion.

In practice

Preparation is often the difference between a smooth transaction and a lengthy negotiation. Businesses that organise financial information, contracts and operational data well in advance generally achieve more efficient sale processes and inspire greater confidence among potential buyers.