When a business owner first decides it’s time to sell, the natural instinct is to focus on the outcome: the price, the timing, the handshake. But according to experts at IBA Inc., a leading business brokerage serving Seattle and Bellevue, the most common and costly mistake is underestimating the process itself.
“Most entrepreneurs do not realize how sophisticated and complicated the process associated with selling a business is when they first start thinking about selling.” That single sentence captures why so many deals fall apart or leave money on the table. Selling a privately held business is not like selling a house or a car. It is a multi-disciplinary operation that touches nearly every aspect of the company and the owner’s personal financial life.
The Hidden Complexity of a Sale
A successful sale requires more than a buyer and a signed agreement. As the IBA team notes, “A best practice sale process requires knowledge & experience related to accounting, finance, tax, law, real estate, business, insurance, and present market conditions related to their geographic area and industry.” Each of these areas can derail a deal if mishandled. For example, a tax structure that minimizes liability for the seller might be unattractive to a buyer. A lease that is not transferable can kill a deal. An outdated insurance policy can create a due diligence red flag. And without a clear understanding of current market multiples in your industry and region, you may price the business too high—scaring off buyers—or too low—leaving value behind.
Why Owners Get It Wrong
Most owners are experts in running their business, not in selling it. They know their customers, their product, and their operations. But they rarely have deep experience in investment banking, M&A law, or business valuation. They may also be emotionally attached, which makes it hard to see the business as a financial asset that a buyer will scrutinize. This is why the first step should not be “find a buyer” but “build a team.”
A professional business broker or M&A advisor brings a playbook that covers every phase: preparation, valuation, marketing, buyer qualification, negotiation, due diligence, and closing. They also have access to databases and networks that individual owners do not. According to the International Business Brokers Association, using a professional intermediary significantly increases the likelihood of a successful transaction and often results in a higher sale price.
The Cost of Going It Alone
Owners who try to sell without professional help often make avoidable mistakes. They may disclose too much or too little information. They may negotiate on price without understanding the tax implications. They may fail to prepare the business for sale, leaving financial records in disarray. They may also inadvertently alert employees, customers, or competitors, which can destabilize the business and reduce its value.
A structured process, by contrast, protects confidentiality, creates competitive tension among buyers, and ensures that all legal and financial documents are in order. It also saves the owner time—time that is better spent running the business while the sale is pending.
What to Do Instead
If you are thinking about selling, the first step is to educate yourself. Read about the process, talk to others who have sold, and consult with a professional. A good broker will not just list your business; they will help you understand the entire lifecycle of a sale. They will also help you time the sale, prepare the business, and identify the right type of buyer—whether that is a strategic acquirer, a financial buyer, or a management buyout.
At IBA Inc., the team emphasizes that selling a business is a “best practice” process, not a casual transaction. They have seen thousands of deals and know the pitfalls. Their advice to owners is simple: don’t go it alone. The complexity is real, and the stakes are high. A successful sale is not just about getting a check; it’s about structuring a deal that meets your financial goals, minimizes taxes, and protects your legacy.
In short, the biggest mistake is thinking that selling a business is simple. It is not. But with the right preparation and the right advisors, it can be a rewarding and profitable experience.