What is Due Diligence?

Due diligence is a structured review of a company, transaction, asset, or counterparty before an important business decision is made. Its purpose is to verify key information, identify potential risks, and determine whether the actual circumstances match the expectations of the parties.

Due diligence is commonly carried out before acquisitions, investments, financing, partnerships, and other significant transactions. Depending on the deal, the review may cover corporate structure, contracts, finances, tax matters, intellectual property, regulatory issues, and other relevant areas.

Due Diligence definition

Due diligence is a systematic review of facts, documents, obligations, and risks relating to a company, asset, or transaction. It helps a party make a decision based on verified information rather than relying only on statements made by a seller, partner, or target company. The scope of due diligence depends on the purpose of the transaction. 

The review may include:

• Corporate documents and ownership structure;
• Material contracts and existing obligations;
• Financial statements and liabilities;
• Tax matters;
• Intellectual property;
• Regulatory status and licences;
• Disputes and potential claims;
• Employment matters;
• Data protection and compliance issues.

In simple terms

Due diligence is a detailed check performed before a transaction. It helps a party understand what it is buying, financing, or taking responsibility for, and which risks may arise after closing.

Main types of Due Diligence

Due diligence is rarely limited to a single review. Depending on the transaction, companies may assess several areas at the same time.

Common types include:

• Corporate due diligence – review of company structure, shareholders, directors, corporate approvals, and ownership.
• Financial due diligence – analysis of financial statements, cash flow, debt, liabilities, and the quality of financial reporting.
• Tax due diligence – review of tax obligations, filings, potential exposures, and disputed matters.
• Commercial due diligence – assessment of the business model, market, customers, suppliers, and competitive position.
• IP due diligence – review of trademarks, patents, copyrights, licences, and ownership of intellectual property.
• Regulatory due diligence – assessment of licences, authorisations, regulatory status, and compliance with applicable requirements.
• Employment due diligence – review of employment contracts, key personnel, compensation, and potential workforce liabilities.

In larger transactions, these areas are often combined into one due diligence process to provide a broader view of risks before closing.

How does Due Diligence work?

The due diligence process usually begins once the parties define the purpose of the transaction and the scope of the review. The exact steps depend on the transaction type, industry, and level of risk.

A typical process includes:

• Defining the scope. The parties determine which areas and documents need to be reviewed.
• Collecting information. The target company or counterparty provides corporate records, contracts, financial data, licences, and other materials.
• Reviewing documents. Specialists analyse the information and compare it with the actual business structure.
• Identifying risks. The review focuses on inconsistencies, liabilities, missing approvals, regulatory issues, and other potential red flags.
• Requesting clarification. Additional questions and documents may be requested where necessary.
• Preparing findings. Key issues are usually summarised in a due diligence report or decision-making summary.

The results of due diligence may affect valuation, purchase price, contractual warranties, indemnities, deal structure, or even lead a party to withdraw from the transaction.

How does Due Diligence affect business decisions?

Due diligence does more than identify risks. It can also change the terms of a transaction before closing. If the review reveals material issues, the parties may adjust valuation, restructure the transaction, or introduce additional contractual protections.

Due diligence findings may result in:

• A lower purchase price;
• Changes to the payment structure;
• Additional warranties and indemnities;
• Requirements to resolve specific issues before closing;
• Separation of certain liabilities;
• Changes to the deal structure;
• Withdrawal from the transaction if critical risks are identified.

For example, if the review reveals a dispute over intellectual property ownership or a missing required licence, the buyer may require the issue to be resolved before closing or renegotiate the commercial terms.

Key2Law can support due diligence in cross-border transactions, help structure the review process, and assess identified corporate, contractual, and regulatory risks.

Examples of Due Diligence

Due diligence is used in many commercial situations where risks should be assessed before a final decision is made.

Example 1. Acquisition

A company plans to acquire a competitor. Before closing, the buyer reviews ownership, material contracts, debt, tax liabilities, IP, and potential disputes.

Example 2. Investment

An investor considers investing in a startup. Due diligence may cover the cap table, shareholder rights, financial position, key contracts, and ownership of technology.

Example 3. New business partner

A company plans a long-term relationship with a foreign counterparty. The review may include ownership structure, sanctions exposure, regulatory status, and reputation risks.

Example 4. Financing

A lender assesses a borrower before providing financing. The review may focus on financial condition, existing debt, security, and ability to repay.

Due Diligence vs Audit

Due diligence and an audit may both involve reviewing documents and financial information, but they serve different purposes. Due diligence is usually performed before a specific transaction or business decision, while an audit is more commonly focused on financial statements and the quality of reporting.

In short, due diligence is primarily aimed at supporting an informed business decision, while an audit focuses on independent verification of financial information and reporting.

Frequently Asked Questions

What does Due Diligence mean?

Due diligence is a structured review of a company, transaction, asset, or counterparty before an important business decision.

When is Due Diligence performed?

It is commonly carried out before acquisitions, investments, financing, partnerships, and other transactions where risks and key information should be assessed in advance.

Who performs Due Diligence?

The review may involve internal teams, financial specialists, accountants, tax advisers, compliance experts, and other professionals depending on the scope.

How long does Due Diligence take?

The timeline depends on the size of the company, complexity of the transaction, volume of documents, and depth of the review. A limited review may take much less time than a complex cross-border transaction.

Can a party withdraw after Due Diligence?

Yes. If the review identifies critical risks, a party may renegotiate the terms or withdraw from the transaction where the parties’ arrangements allow it.

Key takeaways

1. Due diligence is a systematic review of a company, transaction, asset, or counterparty before an important business decision.
2. The review may cover corporate, financial, tax, IP, regulatory, employment, and other matters.
3. Due diligence findings help identify risks, liabilities, and inconsistencies before closing.
4. The results may affect valuation, purchase price, warranties, indemnities, and transaction structure.
5. Due diligence differs from an audit because it focuses on a specific transaction or business decision rather than only financial reporting.