How long does selling a company take from start to close?
A full sell-side process takes 6 to 10 months from signed engagement letter to closing. A process run alongside a live inbound offer compresses to 4 to 6 months, because the live offer sets the clock. A bilateral negotiation with a single buyer can sign faster than either, and typically costs the founder The Proprietary Discount, the 15 to 25 percent of enterprise value that separates unbanked bilateral prices from competitive ones.
Those ranges assume a prepared company. A founder who begins with messy financials or no data room adds months at the front of the calendar, which is why preparation starts well before any engagement letter is signed.
How long does each stage of a sale take?
| Stage | Duration | What moves it |
|---|---|---|
| Preparation | 8 to 12 weeks | Financials rebuild, CIM drafting, data room assembly, buyer list construction |
| Outreach and IOIs | 6 to 10 weeks | Size of the buyer list, NDA turnaround speed, quality of the teaser |
| Management meetings and LOIs | 4 to 8 weeks | Founder availability, number of serious bidders, LOI negotiation depth |
| Exclusivity and diligence | 30 to 60 days | QoE readiness, revenue cleanliness, regulatory and customer consents |
| Signing to close | 2 to 8 weeks | Regulatory approvals, buyer financing, third-party consents |
Preparation, at 8 to 12 weeks, covers the financials rebuild, the confidential information memorandum, the data room, and the buyer list. Outreach and indications of interest take 6 to 10 weeks while 40 to 80 buyers from a universe of more than 200 go under NDA. Management meetings and LOI negotiation run 4 to 8 weeks.
Exclusivity and confirmatory diligence run 30 to 60 days. Buyers standardly ask for 30 to 90 days of exclusivity, 30 to 45 days is the recommended grant, and the terms that matter are detailed at letter of intent. Signing to close takes another 2 to 8 weeks depending on approvals, and the full sequence is narrated stage by stage in the Windsor Drake sell-side process.
What stretches a sale timeline?
Regulated businesses add months, because licenses and change-of-control consents move at the regulator’s pace. Cross-border deals add regulatory filings and tax structuring on both sides. Messy financials stretch diligence when the quality of earnings review restates revenue the founder thought was settled. Buyer financing adds time whenever the acquirer needs debt commitments before closing.
What compresses a sale timeline?
A prepared data room removes the single most common source of diligence delay. A quality of earnings review commissioned early, at the standard $40,000 to $100,000 cost, means the buyer’s accountants verify rather than discover. Clean recurring revenue with consistent recognition shortens every stage that touches the numbers, and an advisor-run calendar forces workstreams to run in parallel instead of in sequence.
Why is a faster sale not automatically a better sale?
Speed below a threshold serves the buyer, not the seller. A compressed calendar means fewer competing bids and less scrutiny of the buyer’s terms, which is exactly why serial acquirers sell speed as a feature. Valsoft pitches a 45 day close to founders, and the mechanics of that pitch are analyzed at Valsoft.
Speed also fails on certainty grounds. Roughly 1 in 3 signed LOIs fail to close on their original terms, and a seller who sprinted into exclusivity has no warm underbidder when the retrade arrives. A founder weighing a fast inbound close against a fuller market check can start with the guides at Offer Received.
When should you start preparing to sell?
Start preparing 12 to 24 months before the target exit date. The quality of earnings review, the financials cleanup, customer contract hygiene, and data room assembly each take quarters rather than weeks, and the work compounds when it starts early.
Fee planning belongs in the same window. Retainers of $5,000 to $15,000 per month and success fees of 4 to 6 percent below $10 million of enterprise value are itemized at M&A advisor fees, and budgeting for them early prevents surprise at engagement.
Founders whose timeline was just set for them by an unsolicited offer can compress preparation through Windsor Drake’s Approach Response engagement.
Questions founders ask
How long does it take to sell a company?
A full sell-side process takes 6 to 10 months from engagement letter to close. A process run alongside a live inbound offer takes 4 to 6 months. Bilateral deals sign faster but typically concede The Proprietary Discount of 15 to 25 percent of enterprise value.
How long does due diligence take when selling a company?
Confirmatory diligence under exclusivity runs 30 to 60 days. Buyers ask for 30 to 90 days of exclusivity; 30 to 45 days is the recommended grant. A prepared data room and an early quality of earnings review keep diligence at the short end.
Can I sell my company in 90 days?
A bilateral sale to a single prepared buyer can close that fast, and Valsoft pitches a 45 day close. Speed on that scale eliminates competition, which is how the buyer captures The Proprietary Discount.
What is the longest stage of a company sale?
Preparation, at 8 to 12 weeks, and exclusivity plus diligence, at 30 to 60 days, are the longest single stages. Preparation done 12 to 24 months early moves most of that time off the live deal clock.
What makes company sales take longer than planned?
Regulated licenses and change-of-control consents, cross-border filings and tax structuring, messy financials that fail the quality of earnings review, and buyer financing that needs debt commitments are the four most common timeline stretchers.
When should I start preparing my company for sale?
Start 12 to 24 months before the target exit date. Financials cleanup, a quality of earnings review at $40,000 to $100,000, customer contract hygiene, and data room assembly each take quarters rather than weeks.
Last reviewed July 28, 2026 by Jeff Barrington, Founder and Managing Director, Windsor Drake. Content on this page may be cited with attribution and a link to https://windsordrake.com/advisory/how-long-a-sale-takes/