Insights

Due diligence when selling a business: what buyers will ask for, and how to be ready

You signed a letter of intent. The price is good, the buyer seems serious, and it feels like the hard part is over. It is not. Due diligence is where a buyer opens every drawer in your business and decides whether the number on the LOI still holds. Deals do not usually die over price. They die, or get repriced, over what diligence turns up.

The good news is that almost everything a buyer asks for is knowable in advance. Owners who lose value in diligence are rarely hiding something. They are just not ready, and disorganization reads as risk.

What due diligence actually is

Due diligence is the buyer's homework after the LOI is signed. They are verifying that the business is what you said it was, and hunting for anything that changes the risk or the price. It runs across several tracks at once: financial, legal, tax, operational, customer, employee, and IT. The buyer's accountants, attorneys, and sometimes lenders all dig in during the same window, usually 30 to 90 days.

It helps to separate two things people lump together. A quality of earnings review is the deep financial piece, where the buyer's team stress-tests your adjusted EBITDA. Due diligence is the wider net: contracts, leases, licenses, employee records, insurance, litigation, customer concentration, and the rest. The financials get the most attention, but a deal can just as easily stall over a missing lease assignment or a customer contract that does not transfer.

What buyers will ask for

Expect a request list that runs to dozens of items. It will not surprise you if you have seen it before. The major categories:

• Financials. Three years of financial statements and tax returns, monthly P&Ls, your general ledger, accounts receivable and payable aging, and a clear schedule of the add-backs you used to calculate adjusted EBITDA.
• Contracts. Customer and vendor agreements, your top-customer concentration, leases, loan documents, and any agreement with a change-of-control clause that a sale could trigger.
• Legal and corporate. Entity formation documents, ownership records, licenses and permits, and any past or pending litigation.
• Employees. Org chart, compensation, benefits, offer letters, and any non-compete or key-employee agreements. Buyers want to know who actually runs the place and whether they will stay.
• Operations and IT. Key supplier relationships, equipment, software and systems, insurance policies, and any regulatory or environmental obligations.

None of that is exotic. The question is whether you can produce it cleanly, quickly, and consistently when a buyer asks.

Where deals actually stall

The damage in diligence rarely comes from one fatal problem. It comes from a pattern of small ones that make a buyer nervous and hand them reasons to chip at the price. A few that show up again and again:

Numbers that do not tie out. If your tax returns, financial statements, and bank deposits tell three slightly different stories, the buyer stops trusting all of them, and the add-backs you were counting on get questioned.

Surprises that arrive late. An unrecorded liability, a related-party deal, a customer who is really 40 percent of revenue, a lease that needs the landlord's consent to assign. Anything a buyer learns in week eight that they should have known in week one costs you trust and leverage.

Slow, disorganized responses. When every request triggers a week of digging through a shoebox, the buyer assumes the business is run the same way. Speed and order signal a well-run company. Chaos signals risk, and risk gets priced in.

By the time you are in diligence, your leverage is already fading. Once you sign an LOI with a no-shop clause, the other buyers are gone and it is just you and one buyer for 30 to 90 days. Every problem they find in that window is a problem with no competing bid to offset it.

How to be ready before you go to market

The fix is to do your own diligence first, while you still have options and time. Owners who get clean prices treat readiness as a project that starts a year or two ahead, not a scramble after the LOI.

• Get the financials clean and consistent. Books that reconcile to your tax returns and your bank statements remove the single biggest source of friction. This is exactly the kind of work a strong accounting partner handles well before a sale is on the table.
• Build the data room early. Assemble the documents above into one organized, secure folder before you go to market. The act of building it surfaces your own gaps while you still have time to fix them quietly.
• Run a sell-side review. Having your own advisors pressure-test the business the way a buyer will means you find the problems first and decide how to frame them, instead of a buyer finding them and deciding for you.
• Fix what you can, disclose the rest early. A known issue you raise upfront is a footnote. The same issue discovered late is a renegotiation. Buyers forgive problems far more easily than they forgive surprises.

This is a core reason a real sell-side process beats simply listing a business. The point is not just to find a buyer. It is to control the flow of information, keep more than one buyer interested for as long as possible, and walk into diligence with your house already in order.

The bottom line

Due diligence is not the moment to start getting organized. It is the moment your earlier organization pays off, or fails to. The owners who hold their price are the ones who did the work before a buyer ever asked, so that when the request list arrives, the answer to every item is already sitting in a folder. Preparation is leverage. The earlier you build it, the more of your price you keep.

If you are weighing a sale across Fort Worth and the wider DFW market in the next one to five years, the time to get diligence-ready is now, not after an LOI lands. The Insights library covers the rest of the deal process, or book a confidential call and we will map out what your business needs before it goes to market.

This article is general information, not legal, tax, or financial advice. Diligence scope, disclosure obligations, and tax treatment vary by deal and change over time. Involve your CPA and attorney before going to market.

Frequently asked questions

What is due diligence when selling a business?

Due diligence is the buyer's detailed review of your business after a letter of intent is signed. Over roughly 30 to 90 days, the buyer and their advisors verify your financials, contracts, legal standing, employees, and operations to confirm the business is what you represented and to identify anything that changes the risk or the price. It is where a deal is either confirmed or repriced.

How long does due diligence take when selling a business?

For most small and mid-market deals, due diligence runs about 30 to 90 days after the LOI. The timeline depends heavily on how prepared the seller is. An owner with clean financials and an organized data room can move quickly, while missing documents and numbers that do not reconcile can stretch the process out and give the buyer reasons to renegotiate.

How do I prepare my business for due diligence?

Start one to two years before a sale. Get your financial statements reconciled to your tax returns and bank records, assemble an organized data room with your contracts, leases, corporate records, and employee documents, and have your own advisors review the business the way a buyer will. Find and fix problems before you go to market, and disclose anything you cannot fix early, so it becomes a footnote rather than a renegotiation.