How to Sell Your Business: A Step-by-Step Guide (2026)

To sell your business, you prepare clean financials and operating documentation, establish a defensible valuation, package the company into professional marketing materials, confidentially approach qualified buyers, negotiate a letter of intent, complete buyer due diligence, and close on legal transaction documents. For a healthy U.S. lower-middle-market company, that end-to-end process typically runs 6 to 12 months and can be led by you, a business broker, an investment bank, or an AI-enabled platform.

This guide walks through how to sell a business the way a professional sell-side advisor would run it: as a structured, competitive process instead of a one-off negotiation with whoever calls first. Below are the steps to sell a business, a realistic timeline, what it costs, the mistakes that cost owners the most money, and how to decide who should run the process. The advice is U.S.-focused and applies mostly to established companies with meaningful, provable earnings.

The steps to sell a business

A well-run sell-side M&A process moves through seven stages. Each one exists to increase buyer confidence and competitive tension, which is what ultimately drives price and terms. Skipping stages, or negotiating with one buyer before you have leverage, is the fastest way to leave money on the table.

1. Prepare the business for sale

Preparation is where most of the value is won or lost, and it should start 6 to 12 months before you go to market. Get three to five years of financial statements in order, ideally reviewed or audited, and build a clean monthly view of revenue, margins, and cash flow. Identify and document add-backs: one-time or owner-specific expenses a new owner would not incur, such as an above-market owner salary, personal vehicles, or one-time legal costs. Normalized earnings are what buyers actually pay for.

Then reduce the risks a buyer will price against you: customer or supplier concentration, undocumented processes, key-person dependence on the owner, expiring contracts, deferred maintenance, and messy corporate or tax records. The goal is a business an outsider can understand and run without you. Advisors consistently report that prepared sellers close faster and defend their asking multiple better in diligence than owners who go to market cold.

2. Establish a defensible valuation

Next, understand what the business is realistically worth so you can set expectations and screen offers. Most lower-middle-market companies are valued on a multiple of normalized earnings: SDE (seller's discretionary earnings) for owner-operated small businesses, or EBITDA for larger companies. As a general, educational range, small owner-operated businesses commonly trade around 2x to 4x SDE, while larger lower-middle-market companies commonly trade around 4x to 7x EBITDA, with wide variation by industry, growth, margins, and recurring revenue. These figures are educational estimates to illustrate typical ranges, not a guarantee, appraisal, or offer of value for any specific business.

Multiples rise with size, profitability, growth rate, recurring or contracted revenue, customer diversification, and low owner dependence; they fall with concentration, volatility, and thin margins. A proper valuation triangulates the earnings multiple, comparable transactions in your industry, and a discounted cash flow view, then reconciles them into a defensible range instead of one precise-looking figure.

3. Build the deliverables and marketing materials

Buyers evaluate what you show them, so the quality of your materials directly affects both the offers you receive and how quickly diligence moves. The standard sell-side package includes a quality-of-earnings style financial analysis, a forward projection model, a one-to-two-page anonymous teaser, a detailed confidential information memorandum (CIM/CIP) describing the business and its growth story, and a non-disclosure agreement (NDA) that gates access to sensitive information. Together these let serious buyers underwrite the deal quickly and make credible, well-supported offers.

4. Identify and approach buyers

Build a targeted list of qualified buyers, then reach out confidentially. Buyers generally fall into a few categories:

• Strategic acquirers: competitors, suppliers, or customers who gain synergies and often pay the highest prices.
• Private equity firms and their portfolio companies, who buy for growth and returns, frequently via add-on acquisitions.
• Family offices and search funds, which take a longer hold and can be flexible on structure.
• Individual operators, common for smaller owner-operated businesses.

The teaser goes out first; only buyers who sign the NDA receive the CIM. Broad, competitive outreach is the single biggest lever on final price and terms.

5. Negotiate the letter of intent (LOI)

Interested buyers submit indications of interest and then a letter of intent, a mostly non-binding document that sets price, deal structure, earn-outs, financing, and an exclusivity (no-shop) period. Compare offers on total structure and certainty of close, not just headline price. A lower all-cash offer from a credible buyer can beat a higher offer loaded with earn-outs, seller financing, or financing contingencies. Try to preserve competitive tension right up until you sign, because leverage drops sharply once you grant exclusivity.

6. Survive due diligence

Once you sign an LOI, the buyer conducts due diligence, a deep review of financial, legal, tax, operational, and commercial records, usually managed through a secure virtual data room and a running, managed Q&A. This is where deals most often slow down or fall apart, typically because financials do not reconcile or promised information is missing. Clean, well-organized diligence materials keep the deal moving and prevent price re-trades. This stage usually takes 60 to 90 days.

7. Close the transaction

Attorneys draft and negotiate the definitive purchase agreement, disclosure schedules, and ancillary documents, including reps and warranties, indemnification, and any escrow. At close, ownership transfers, funds are disbursed, and any transition-services or earn-out arrangements begin. Plan for post-close obligations such as an escrow holdback and a transition period during which you help the buyer take over.

Deal structure: what you are actually negotiating

Price is only part of the deal. Two structural points matter most. First, an asset sale (the buyer purchases specific assets and liabilities) versus a stock sale (the buyer purchases the legal entity). The choice carries different tax and liability consequences for both sides. Second, how much of the price is paid at close versus tied to future performance through an earn-out or seller note. More cash at close means more certainty; more contingent consideration shifts risk onto you. Involve a transaction attorney and a tax advisor before you agree to structure in the LOI.

How long does it take to sell a business?

For a prepared, healthy company, expect roughly 6 to 12 months from launch to close, though it can run longer for complex or larger businesses. A rough breakdown: preparation and valuation take 1 to 3 months; building materials and running buyer outreach take 2 to 4 months; LOI negotiation takes a few weeks to a month; and due diligence through close takes another 2 to 4 months. Businesses with messy financials, heavy owner dependence, or unrealistic price expectations take substantially longer — or never close.

What does it cost to sell a business?

Selling costs fall into two buckets: advisory fees and transaction expenses.

• Advisory / success fees. Traditional business brokers serving smaller deals commonly charge roughly 8% to 12% of the sale price, often with a minimum fee. Investment banks handling larger transactions typically use a declining scale, most commonly a "double Lehman" variant (for example 10% on the first million, 8% on the second, scaling down from there), usually plus a monthly retainer. That structure descends from the original 1970s Lehman formula, whose 5-4-3-2-1 percentages sit well below what most lower-middle-market banks charge today. As a rule, the percentage falls as deal size rises.
• Transaction expenses. Legal fees, accounting and quality-of-earnings work, tax advice, and data-room costs are typically paid on top of the advisory fee.
• Tech-enabled alternatives. Software-driven and AI-enabled platforms now produce many of the same deliverables at a fraction of traditional percentage-based fees. Cost varies by provider and scope; the trade-off to weigh is price against hands-on senior deal experience.

Common mistakes when selling a business

• Selling to a single buyer. Without competition, you have no leverage. A process with multiple qualified buyers is the most reliable way to improve both price and terms.
• Weak or unnormalized financials. Unclear books and undocumented add-backs lower buyer confidence and invite price cuts during diligence.
• Over-dependence on the owner. If the business cannot run without you, buyers discount it or load the deal with earn-outs.
• Unrealistic price expectations. Anchoring to a number the market will not support stalls or kills deals.
• Neglecting confidentiality. Leaks to employees, customers, or competitors can damage the business mid-process.
• Taking the eye off performance. A dip in results during a long sale process gives buyers a reason to re-trade the price.
• Ignoring taxes until the end. Deal structure drives your after-tax proceeds; get tax advice before you sign the LOI, not after.

Who should run the sell-side M&A process?

There are four common ways to run a sale. The right choice depends on deal size, complexity, and how much of the work you want to own.

Option	Best fit	Typical cost	Trade-off
DIY	Very small or pre-arranged sales	Lowest out-of-pocket	Time-intensive; easy to underprice the deal without competitive tension
Business broker	Small businesses, often under a few million in value	~8%–12% success fee	Local reach; quality and buyer networks vary widely
Investment bank	Larger lower-middle-market and up	Retainer + scaled success fee	Senior expertise and buyer access; higher cost and minimums
AI-enabled platform	Owners who want bank-grade deliverables at software economics	Far below percentage-based fees	Newer model; less high-touch than a senior banker

Bankerly.ai is one example of the AI-enabled option: it runs a complete sell-side process (financial due diligence, projection model, CIM and teaser, buyer matching, managed Q&A, and a secure data room), producing investment-bank-grade deliverables at software economics, aimed at the smaller deals traditional banks often overlook. Whichever path you choose, the fundamentals do not change: know what the business is worth, then run a competitive, confidential process.

The bottom line

Selling a business well is a project, not an event. Owners who prepare early and run a structured, competitive process get better prices and terms, and their deals actually close. If a sale is on your horizon, start preparing 6 to 12 months before you want to close. The work you do up front is what buyers ultimately pay for.