Risk & diligence
How to Check a Business Before Buying It: A Verification Framework
How to check a business before buying it — a claim-by-claim verification framework for earnings, customers, ownership, transferability, liabilities, assets, and operating authority.
A practical research brief from the Business Buyer Check learning library.
Who This Is For
Business buyers and advisers deciding what to verify, what remains unresolved, and what should change before closing.
What This Checks
- Create a Claim Register
- Verify Earnings
- Verify Revenue Durability
- Verify What Transfers
- Verify Liabilities Beyond the Data Room
Create a Claim Register
List the assertions supporting the price: revenue, normalized earnings, recurring customers, employee continuity, asset ownership, lease term, licensing, lack of debt, and growth. Assign each claim a source, owner, status, and deadline.
Use statuses such as seller-stated, document-supported, independently corroborated, conflicted, unavailable, and not applicable. Confidence should follow the evidence, not replace it.
Verify Earnings
Reconcile tax returns, monthly statements, the general ledger, bank deposits, merchant statements, payroll, invoices, and operational reports. Rebuild SDE or EBITDA and verify every add-back.
Compare historical years, trailing twelve months, and current year-to-date performance. Normalize owner replacement, related-party costs, deferred expenses, working capital, and maintenance capex.
Verify Revenue Durability
Calculate customer concentration by revenue and gross profit. Review contracts, assignment, renewal, termination, pricing, churn, credits, refunds, backlog, and pipeline definitions. Confirm whether relationships belong to the seller personally.
Verify What Transfers
Trace ownership and transfer requirements for assets, inventory, leases, contracts, licenses, permits, phone numbers, domains, software, data, intellectual property, supplier terms, and insurance. A useful business can still be a poor acquisition if essential rights do not survive closing.
Verify Liabilities Beyond the Data Room
Search appropriate entity, UCC, court, bankruptcy, licensing, tax, EPA, OSHA, DOL, FMCSA, and industry sources. Treat possible matches as candidates until identifiers align. Treat an empty search as a recorded outcome, not proof of absence.
Reconcile and Decide
For every conflict, request the next-best evidence and estimate potential financial or operational impact as a range. Resolve the issue through evidence, remediation, price, structure, insurance, escrow, closing condition, or termination.
Refresh changeable evidence before closing and compare the current facts with the LOI baseline. Preserve versions so reviewers can see what changed.
Illustrative Buyer Example
How a Buyer Would Apply This Guide
A seller’s headline earnings support the asking price, but the supporting records are incomplete. The buyer follows this guide to identify the missing inputs, reproduce the calculation, request independent support, model the downside, and convert unresolved items into offer protections rather than treating the claim as verified.
Classification: Illustrative analysis—not a live finding, valuation conclusion, or recommendation to buy.
Official Sources and Verification Routes
Use the exact legal entity, address, filing number, license number, facility identifier, or carrier identifier shown in the source. Access, coverage, fees, and update timing vary.
Frequently Asked Questions
What is the first thing to verify?
Verify the exact legal entity and reproduce the earnings figure supporting the asking price. Those two steps control most subsequent searches and calculations.
Can public records verify seller financials?
Generally no. Seller financial verification relies mainly on tax returns, accounting records, bank or merchant evidence, payroll, invoices, and operational data.
How much verification is enough?
Scope should follow materiality, transaction structure, industry, jurisdiction, financing, and risk. Material unresolved assumptions should be visible before closing.
This educational material is preliminary decision support, not legal, tax, accounting, lending, appraisal, or investment advice. Requirements and transaction terms vary; verify current rules with qualified advisers and official sources.
Recommended Next Step
Continue to DealProof
Turn the guide’s evidence requests, official searches, and unresolved findings into buyer conditions.
Continue to DealProofYour next diligence questions
Continue Your Research Path.
These guides address the issues most closely connected to this topic.