M&A due diligence process
Due diligence turns an agreed transaction into a tested one. The work is not only collecting documents. It is resolving questions, recording decisions, and carrying the resulting obligations through signing and closing.
The process, step by step
The process, step by step
1. Prepare before exclusivity
Build the financial, commercial, legal, people, and technology packs before a buyer controls the timetable. Reconcile every important number to its source and identify explanations that need management input.
2. Set scope and responsibility
Translate the request list into clear workstreams. Give every request an owner, a due date, and a reviewer. Agree what complete means before documents start moving.
3. Open the data room
Release information in controlled groups rather than as an unstructured upload. Keep a record of what was shared, when it was shared, and which question it answered.
4. Run questions and answers
Questions arrive from several advisers at once. Route each one to a single owner, preserve the approved answer, and attach the evidence behind it so later answers stay consistent.
5. Resolve findings
Turn findings into decisions. Some need more evidence, some need a price response, and some need a condition in the purchase agreement. Record the decision and the next action together.
6. Carry the record into closing
Use the diligence record to support disclosure schedules, consents, closing conditions, and final price mechanics. Open items should have an owner until they are closed or accepted.
The main workstreams
- Financial
- Earnings quality, working capital, debt, tax, forecasts, and the support behind adjustments.
- Commercial
- Customers, contracts, concentration, pricing, pipeline, competition, and supplier dependencies.
- Legal
- Ownership, material agreements, disputes, licences, insurance, and change of control provisions.
- People
- Key staff, compensation, employment terms, benefits, retention risk, and owner dependency.
- Technology
- Systems, security, intellectual property, licences, data practices, and operational resilience.
Keep the process connected
A request list shows what somebody asked for. A useful deal record also shows the issue behind the request, the answer given, the decision taken, and the action that follows. For preparation, use the due diligence checklist for selling a business. For the commercial terms that start the formal process, see the letter of intent guide.
How Dealinit approaches it
Dealinit keeps one current state across every workstream. Open questions sit beside their owners, decisions, next actions, and source evidence, so the team can move the transaction without reconstructing it from messages and folders. Pro is $199 per month.
Common questions
- What is the M&A due diligence process?
- It is the structured review a buyer completes before acquiring a business. The buyer tests the financial case, commercial position, legal obligations, people risks, and operating assets behind the agreed terms.
- How long does M&A due diligence take?
- A focused lower middle market process often runs for several weeks after the letter of intent. Timing depends on preparation, transaction complexity, financing, and how quickly clear answers reach the buyer.
- Who manages the process?
- The lead adviser usually coordinates the overall timetable. Finance, legal, tax, commercial, and technology specialists own their workstreams, while management provides source information and approves key answers.
- What slows diligence down?
- Missing source documents, conflicting answers, unclear ownership, and requests that sit without an owner cause most avoidable delay. A folder can hold files, but it does not manage those decisions.
- How do findings affect the deal?
- A finding may require more evidence, a change to price or structure, a closing condition, a specific indemnity, or no action. The important step is connecting the finding to the decision it produced.
- How does Dealinit support due diligence?
- Dealinit keeps requests, issues, decisions, actions, and supporting evidence in one current deal state. That gives the team a shared answer to what is open and what happens next. Pro is $199 per month.