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Published October 21, 2026

Selling a business checklist of the documents buyers ask for

Data room per listing
  • Tax returns 2023 to 2025 14
  • Profit and loss 2025 11
  • Lease and equipment 9
  • Payroll summary 6
  • Customer contracts 3
Buyer 1057 NDA signed

Selling a business is mostly a test of whether you can prove what you say. A buyer who likes your listing will ask for documents in three waves: enough to decide whether to make an offer, much more after a letter of intent, and a final round from their lender and attorney before closing. Sellers who assemble everything before they list close faster, keep their negotiating position and avoid the slow drift where a deal dies because a lease or a tax return took three weeks to find. This checklist covers what buyers of US small and mid-sized companies commonly request, grouped the way a well-organized data room is built.

When buyers ask for each document

Not everything goes to every buyer at once. Before an NDA, a buyer sees only a blind summary with industry, region, revenue, SDE, asking price and reason for sale. After a signed NDA and some evidence of funds, a serious buyer receives the confidential information memorandum and summary financials. Detailed documents such as customer lists, employee files and contracts are usually shared only after a signed letter of intent, and the most sensitive items (names of key customers, staff salaries) often only late in due diligence. Staging disclosure this way protects you if the deal falls apart. The key is that the documents exist and sit in order from the first day, even if you release them in steps. The full sequence of a sale is in our guide on how to sell my business.

  • Before NDA, blind teaser and headline numbers only
  • After NDA and proof of funds, CIM and summary financials
  • After LOI, the full data room in stages
  • Before closing, lender, title, lease and legal closing documents

Financial documents for the sale of a business

Financial records carry the price, so buyers and lenders go through them first and most carefully. They compare tax returns with internal statements and bank deposits, and they test every add-back in your recast. Gaps between these sources are the most common reason for a lower offer late in a deal.

  • Federal business tax returns for the last three years, with all schedules
  • Profit and loss statements and balance sheets for the same three years, plus year to date
  • Monthly profit and loss for the trailing twelve months, to show seasonality
  • Bank statements for all business accounts covering the same period
  • Recast or adjusted earnings schedule with a source document for each add-back
  • Accounts receivable and accounts payable aging reports
  • Inventory list with quantities, cost and age, if the business holds stock
  • Debt schedule with lender, balance, rate, payment and any liens or UCC filings
  • Sales tax returns and payroll tax filings, with confirmation that nothing is overdue

If your books are kept on a cash basis or by a part-time bookkeeper, consider having an outside accountant review the last full year before you list. On larger deals, many buyers commission a quality of earnings (QoE) report, an independent review of revenue, margins and add-backs. Some sellers order their own sell-side QoE first, so there are no surprises when the buyer's accountants arrive.

Buyers need to know who owns the company, who can sign, and whether anything could follow the business after closing. In an asset sale, many liabilities stay with the seller, but buyers still check for liens, lawsuits and compliance problems that would affect the assets or the reputation they are buying.

  • Articles of incorporation or organization, bylaws or operating agreement, and amendments
  • Ownership records (stock ledger or membership interests) and any shareholder agreements
  • Minutes or written consents approving the sale, where required
  • Certificate of good standing from the state of formation and states where you operate
  • Business licenses, permits and professional certifications, with expiry dates
  • List of current, pending or threatened litigation and any government inquiries
  • Insurance policies, coverage limits and claims history for at least three years

Check now whether your entity is in good standing in every state where it is registered. A lapsed annual report or an unpaid franchise tax is easy to fix before a sale and surprisingly slow to fix during one, because the buyer's attorney will not let you close until the certificate is clean.

Operations, employees and customers

This is the part of the checklist that shows whether the business runs without you. Buyers pay more for a company with documented processes, a stable team and a spread of customers, and they pay less, or ask for an earnout, when everything depends on the owner.

  • Organization chart with roles, tenure, pay, benefits and full or part time status
  • Employee handbook, written policies and any employment, non-compete or bonus agreements
  • Independent contractor list and how each one is classified
  • Top customers by revenue for three years, with the share of total revenue each represents
  • Major supplier list, purchase terms and any exclusive arrangements
  • Standard operating procedures, checklists and training materials
  • Equipment and vehicle list with age, condition, maintenance records and ownership or lease status
  • Software, systems and accounts the business runs on, and how access transfers

Customer concentration is the item buyers look at most closely in this group. If a single customer accounts for more than 15 to 20 percent of revenue, expect questions about the contract, the relationship and what happens if that customer leaves after closing. Long-term contracts, a history of renewals and relationships held by staff rather than only by you all help. Where concentration is high, buyers often propose an earnout or a larger seller note, so it is worth knowing your numbers before the conversation starts.

Contracts, the lease and intellectual property

Contracts decide whether the revenue a buyer pays for can actually transfer. Look for assignment clauses that require consent from the other party, because a customer contract, a franchise agreement or a lease that cannot be assigned can stop a deal. The lease deserves particular attention in retail, restaurants, laundromats and any business that depends on location. Buyers and SBA lenders usually want the remaining term, including options, to roughly match the loan term, which is often ten years.

  • Real estate lease with all amendments, renewal options, rent escalations and assignment clause
  • Landlord contact and any estoppel certificate the landlord is willing to sign
  • Customer contracts, master service agreements and recurring service agreements
  • Supplier, distribution and licensing agreements
  • Franchise agreement and the franchisor's transfer requirements, if applicable
  • Trademarks, domain names, websites, social accounts and any patents or copyrights
  • Equipment leases and financing agreements that a buyer would assume or that you will pay off

Industry-specific items buyers often add

Some sectors carry their own checklist on top of the general one. A buyer of an HVAC or plumbing company asks about licensed technicians, service agreements and warranty obligations. A laundromat buyer wants twelve to twenty four months of water and utility bills to verify revenue. A restaurant buyer checks health inspection reports and liquor licensing. Healthcare and childcare buyers look closely at state licenses and payer contracts. Trucking and logistics buyers review safety ratings and operating authority. If your business holds a license tied to a person rather than the company, plan with your broker how the buyer will qualify for it before closing, since in some states this takes months.

Environmental questions belong here too. A dry cleaner, an auto repair shop, a gas station or a manufacturer that handles chemicals can expect the buyer, and almost always the lender, to ask for an environmental review of the site. Gather any prior reports, permits for waste disposal and records of tank inspections before you list, so a lender's environmental check does not become the reason closing slips by a month.

How to organize a data room for the sale

A data room is a single secure place where buyers review documents under NDA. Organize it with the same folders as this checklist, name files clearly with the period they cover, and keep an index that lists every file. Track which buyer opened what and when, because it tells you who is serious. Remove anything with personal data you do not need to share, such as employee home addresses or social security numbers, and share customer names only when the deal is close. Every listing on CompanyBrokers comes with a secure data room that opens only after the buyer signs the NDA, and you control access per buyer. Owners who list themselves get the same tools, which is one reason many choose to list businesses for sale by owner with a structured process rather than through classified ads.

  • Folders numbered by topic (financial, legal, people, contracts, operations, industry)
  • One index document listing every file and its date
  • Access granted per buyer, with downloads limited where possible
  • Sensitive files released only after a signed letter of intent

Start your sale with a defensible number

Once your documents are in order, the next question is price. Our guide on how to value a small business explains recasting and add-backs, and the valuation tool gives you a range in about a minute, with a listing preview built from your numbers.