One of the most common questions sellers ask before starting the process is: how long is this going to take? The honest answer is that selling a business takes longer than most people expect. The average small business sale takes six to twelve months from the decision to sell to closing. Some deals close in three months. Others drag on for two years. Understanding the phases and what drives delays helps you plan realistically and avoid the frustration that derails deals.

The Full Timeline: Phase by Phase

Phase 1: Preparation (1 to 3 Months)

Before your business is market-ready, you need to do the prep work that most sellers underestimate. This phase includes:

• Getting three years of financial statements cleaned up and organized
• Calculating your SDE or EBITDA and knowing your defensible asking price
• Hiring a broker or deciding to go FSBO
• Creating a Confidential Business Review or offering memorandum
• Preparing a summary of operations, customer contracts, lease agreements, and key employee information

Sellers who rush this phase regret it. Buyers ask detailed financial questions early. If you cannot answer them clearly, you signal disorganization or risk, and buyers either walk or negotiate harder.

If you are not sure how to frame your financials for buyers, start with our guide on how to value your business before selling. A clear, well-documented valuation is the foundation of a fast, clean sale.

Phase 2: Marketing and Buyer Search (1 to 4 Months)

Once your business is packaged and priced, you need buyers. The time this takes depends heavily on your industry, deal size, and whether you have a broker with an active buyer network.

Small main street businesses under $500,000 in sale price typically generate interest within four to eight weeks of listing on platforms like BizBuySell. Mid-market businesses between $1 million and $5 million may take three to six months to find a qualified buyer, because the pool of people who can fund a $2 million acquisition is significantly smaller than those who can fund a $300,000 purchase.

Common delays at this stage:

• Overpricing based on wishful thinking rather than market data
• Weak confidential marketing materials that do not generate interest
• Industry-specific buyer droughts (certain industries are just hard to sell in particular years)

Phase 3: Buyer Conversations and Letters of Intent (2 to 6 Weeks)

Once you identify a serious buyer, the next step is a Letter of Intent (LOI). The LOI outlines the proposed deal structure: purchase price, payment terms, due diligence period, and any contingencies. Negotiating an LOI typically takes one to three weeks.

The LOI is not the finish line. It is the starting gun for the real work. Most LOIs include an exclusivity clause that prevents you from talking to other buyers for 30 to 90 days while the buyer completes due diligence. This is important: once you sign an LOI, you are off the market.

Phase 4: Due Diligence (30 to 90 Days)

Due diligence is where deals slow down and sometimes fall apart. The buyer’s team will request financial records, customer contracts, lease agreements, employee files, tax returns, and anything else that affects the value or risk profile of the business.

A well-prepared seller with organized records can complete due diligence in 30 days. An unprepared seller, or one who has messy books or undisclosed issues, can stretch due diligence to 90 days or longer. Each request for a missing document extends the timeline.

Common due diligence killers:

• Tax returns that do not match the financial statements you provided
• Customer concentration that was not disclosed upfront
• Equipment or lease issues discovered for the first time
• Key employee agreements that are not documented

Phase 5: Purchase Agreement and Closing (2 to 6 Weeks)

Once due diligence is complete, your attorneys draft the purchase agreement. This document covers every aspect of the transaction: representations and warranties, indemnification clauses, non-compete terms, working capital adjustments, and the allocation of the purchase price across asset classes. Plan for one to three weeks of legal back-and-forth.

If the buyer is using an SBA loan, add another 30 to 60 days for bank underwriting and approval. SBA 7(a) loans are the most common financing mechanism for small business acquisitions, and they add time. SBA 7(a) loans require the lender to complete its own due diligence process on the buyer, the business, and the deal structure before funds are released.

What a Realistic Timeline Looks Like

Here is a realistic scenario for a $750,000 main street business sale:

• Month 1: Get financials in order, hire broker, create offering materials
• Month 2: Go to market, begin fielding inquiries
• Month 3: Qualify buyers, begin serious conversations
• Month 4: Execute LOI, begin due diligence
• Months 5 to 6: Complete due diligence, negotiate purchase agreement
• Month 7: SBA loan approval, final closing

Seven months is reasonable. Eight to ten is common. Twelve-plus is frustrating but not unusual if the first buyer falls through and you have to restart from Phase 2.

What Slows Down a Deal (And What You Can Control)

Most delays fall into three categories: seller-side, buyer-side, and market conditions.

Seller-side delays you can prevent:

• Disorganized financials that require back-and-forth clarification
• Slow response to buyer document requests
• Unrealistic pricing that repels qualified buyers
• Operational issues discovered mid-due diligence

Buyer-side delays you cannot fully control:

• Financing problems (buyer cannot get the loan they expected)
• Cold feet after signing the LOI
• Slow attorneys on the buyer’s side
• Lender delays

What you can do about it: Screen buyers harder upfront. Ask for proof of funds or a pre-qualification letter from an SBA lender before you enter due diligence. Lose a few weeks screening buyers and save three months on a deal that was never going to close.

How Deal Size Affects Timeline

Smaller deals close faster. Here is a rough guide by deal size:

• Under $250,000: 3 to 6 months total is common. Simpler structures, smaller buyer pools, and less complex due diligence.
• $250,000 to $1 million: 6 to 10 months is typical. SBA financing common, adds 30 to 60 days.
• $1 million to $5 million: 8 to 14 months. More buyer vetting, more complex due diligence, larger legal workload.
• Above $5 million: 12 to 24 months. M&A advisors replace brokers, institutional buyer processes slow things down.

For a deeper look at what your business is worth at each size tier, see our complete guide: How to Value a Small Business: The Complete Guide.

One Deal Falling Through Is Not the End

Somewhere between 20% and 50% of small business deals under LOI do not close. Buyers back out during due diligence. Financing falls through. Sellers discover undisclosed issues mid-process. Deals die for all kinds of reasons.

When this happens, you restart the buyer search. Depending on how far you got, this can add another three to six months. The preparation you did for the first buyer is still useful; you do not start from zero. But the clock resets on the marketing and buyer search phase.

This is why the best time to start the sale process is before you are desperate to sell. Running the process with patience, without a hard deadline forcing you to accept a bad deal, is the single biggest advantage a seller can have.

For context on whether to use a broker or handle the process yourself, see: Business Broker vs FSBO: Which Gets You More When Selling Your Business?

Related Reading: M&A for Small Business: The Complete Guide

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