Despite signed LOIs and significant time investment from all parties, a meaningful percentage of business sales fail during due diligence. Understanding the most common causes helps both buyers and sellers navigate this phase with fewer surprises and more successful closings.
Financial Misrepresentation
The leading deal killer is discovering that the financial information the seller provided does not match the supporting documentation. Revenue that cannot be verified in bank deposits, add-backs that are not supportable with documentation, or material expenses that were not disclosed in the P&L all erode buyer trust and justify deal termination. Sellers who present accurate, fully documented financials from the start eliminate this risk entirely.
Undisclosed Liabilities and Legal Issues
Buyers who discover undisclosed legal disputes, tax liens, environmental contamination, regulatory violations, or significant hidden liabilities during due diligence have both the legal right and the practical incentive to terminate or renegotiate significantly. The discovery of an undisclosed IRS tax lien or IDOR audit, for example, requires resolution before any lender will fund the acquisition.
Lease and License Obstacles
Landlords who refuse to assign leases at reasonable terms, liquor licenses that cannot be transferred due to municipal caps, or healthcare licenses that have disqualifying compliance history are common late-stage deal obstacles. These issues are almost always identifiable early in the process — catching them in the first two weeks rather than the last two weeks of due diligence saves enormous time and cost for everyone involved.
The best preparation for navigating due diligence successfully — for both buyers and sellers — is transparency from the first conversation. Deals that fail in due diligence almost always had warning signs that were visible earlier but were not addressed directly. Proactive disclosure and problem-solving is always better than discovery under the pressure of a closing deadline.