M&A Due Diligence Checklist: What Buyers Should Investigate Before Acquiring a Business

A practical M&A due diligence checklist for buyers covering contracts, debt, employees, intellectual property, taxes, litigation, and closing risks. The appropriate course depends on the agreements, the parties, and the facts. Below are the issues worth reviewing before making a consequential decision.

Why due diligence matters

A business acquisition can transfer more than customers and revenue. Depending on structure, the buyer may inherit liabilities, assume contracts, take on employees, or discover that key assets are encumbered. Due diligence tests the seller's claims and helps the buyer decide what price, structure, protections, and closing conditions are appropriate.

Corporate records and ownership

Verify formation documents, good standing, capitalization, ownership records, board and shareholder approvals, subsidiaries, and outstanding options or convertible instruments. Determine whether the seller actually owns the interests or assets being offered and whether third-party consents are needed.

Financial performance and debt

Review financial statements, tax returns, bank records, accounts receivable aging, working capital, customer concentration, and recurring versus one-time revenue. Identify loans, liens, guarantees, equipment financing, and obligations that may become due on a change of control. Coordinate legal and financial review rather than treating them as separate exercises.

Material contracts and commercial relationships

Identify top customer and supplier contracts, leases, licenses, exclusivity arrangements, change-of-control provisions, assignment restrictions, termination rights, and unusual pricing commitments. A valuable contract may not transfer automatically in an asset deal, and a stock acquisition can also trigger consent requirements.

Employees and independent contractors

Review employment agreements, compensation plans, accrued obligations, benefits, contractor classification, immigration compliance where relevant, and pending workplace claims. Determine which personnel are essential after closing and what retention arrangements may be necessary.

Intellectual property, data, and regulatory matters

Confirm ownership of trademarks, software, domains, proprietary processes, and customer data. Review assignments from founders and contractors, open-source obligations, cybersecurity incidents, privacy practices, permits, and industry-specific licenses. A business that depends on intellectual property it does not own may be worth substantially less than advertised.

Litigation, taxes, and closing protections

Examine threatened and pending claims, government inquiries, tax liabilities, insurance coverage, and environmental or real estate exposure where relevant. Translate findings into purchase-price adjustments, indemnities, escrow or holdback terms, representations, covenants, and closing conditions. No checklist replaces diligence tailored to the target's industry.

Frequently asked questions

Is an asset purchase automatically safer? Not always; successor liability, assumed obligations, and operational constraints still matter. How long should diligence take? It depends on size, complexity, and document readiness. Can diligence findings change the price? Yes, often through negotiation.

Discuss Your Situation

If you are considering a transaction or facing a business-law issue, contact Alex Nahai Law to discuss the relevant documents, risks, and available options.

This article provides general information, not legal advice. Reading it does not create an attorney-client relationship. Laws and facts may change; obtain advice tailored to your circumstances.