What Makes the Sale of a Business Fall Through?

By Michael D. Rubin, CEO & Founder · Updated September 2026 · 722 words

Deals fall through for four kinds of reasons: the seller was not truly ready, the buyer was not truly able, something unexpected surfaced in due diligence, or a third party such as a landlord or an overzealous advisor got in the way. Most of these can be spotted and dealt with before a buyer is ever introduced, which is why preparation protects a sale more than negotiation does.

A failed deal costs more than the lost months. The company has been exposed to a buyer who now knows its numbers, employees may have sensed something, and the next buyer will ask why the last one walked away. Sorting the causes into four groups makes it easier to see which ones you can control, and nearly all of them fall into that category.

When the seller is the cause

Each of these is fixed by the same discipline: know why you are selling, get a realistic opinion of value or a formal business valuation, disclose early and bring your professional team in before going to market.

• No firm reason to sell. An owner who is only testing the market lacks the commitment to push through the hard parts of a deal, and tends to back away when the first difficult term appears.
• An unrealistic price. Sincere sellers can still expect more than the market will pay, and the gap only widens as diligence proceeds.
• Undisclosed problems. New competition, a lost customer or a disagreement among co-owners about whether to sell at all, discovered by the buyer later, ends trust quickly.
• Late tax and legal planning. Asking your CPA and attorney about structure only after the buyer is found often means changing agreed terms, and buyers resist changes.

When the buyer is the cause

Buyers can lose their nerve at the moment of commitment, especially individuals leaving a secure career for the first time. Some hold unrealistic ideas about price or underestimate the hours and effort involved in running a company. Others are talked out of it by a spouse, partner or investor who never liked the idea. And some simply cannot get financing.

Screening buyers before they see detail, including proof of funds, their motivation and their experience, removes most of this risk. A related danger is the buyer who tries to renegotiate late in the process; our answer on preventing a buyer from retrading the price covers it.

When something surfaces in due diligence

Some problems seem to come from nowhere: an environmental issue at the site, a gap between reported and provable earnings, a dispute with a local, state or federal agency. In truth most were knowable. A pre-sale review of your records, permits and property finds them while you can still fix or disclose them on your terms.

Earnings that cannot be substantiated to the buyer's satisfaction are the most common case. If your books and tax returns tell different stories, resolve that with your CPA before any buyer sees them. The guide on what makes a sale fall apart in due diligence goes through the typical problems.

When third parties get in the way

A landlord may refuse to assign the lease or demand new terms as the price of consent. A lender may slow the process. And advisors on either side can become the obstacle: an attorney unfamiliar with transactions can raise so many objections that the deal dies, even though the purpose was to close it on sound terms.

Hiring a transaction attorney who regularly handles business sales, and checking lease assignment terms early, prevents most third-party problems. Experienced deal attorneys also tend to be more efficient, which keeps legal costs in proportion. Not every failure can be prevented; occasionally a buyer or seller simply discovers the timing is wrong. Those cases are the exception.

What we do before a buyer ever sees your company

MDR & Associates reviews financials, leases and known issues before going to market, screens every buyer for funding and motivation, and negotiates several letters of intent at once so that one buyer's exit does not end the sale. We also work alongside your own transaction attorney and CPA, so tax and legal questions are settled before terms are agreed rather than after. Our ten-step process is built around those safeguards. To see how your company would hold up, request a valuation snapshot.

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Questions owners ask next

What happens if a deal falls through during due diligence?

You are usually free to return to other interested buyers once any exclusivity period ends. That is much easier if several letters of intent were negotiated at the same time and the backup buyers were kept informed. Find out why the deal failed and fix the cause before re-engaging.

Do I pay my advisor if the sale does not close?

With a success-fee-only arrangement, no. MDR & Associates is paid only if and when the company sells; if it does not close, the owner owes nothing. Some advisors charge retainers or monthly fees, so confirm the terms in any engagement letter before signing.