37 Questions to Ask Before Buying Any Small Business

Why the Right Questions Save You from the Wrong Deal

Most first-time buyers show up to seller meetings with a vague sense of what to ask. They cover a few basics, nod along, and leave feeling good about the deal. Then they close and discover the biggest customer was already shopping competitors, the equipment needs $80,000 in replacements, and the owner was the only person who knew how to run the CNC machine.

Knowing the right questions to ask when buying a business separates successful acquirers from expensive mistakes. If you have been wondering what questions to ask when buying a business, or what to ask when buying a business in general, this list covers everything. More than just questions, this guide tells you what to look for when buying a business - the answers that signal opportunity and the ones that signal danger.

These 37 questions are organized by category. Each one includes context on why it matters and what red flag answers sound like. Print this list. Bring it to every seller meeting. The answers will tell you more about the business than any broker summary ever will.

Pair this list with a structured due diligence checklist to make sure nothing slips through the cracks.

Financial Questions (1-10)

1. What has revenue been for each of the last three years?

You need the trend, not just the current number. A business doing $1.2M this year sounds good until you learn it did $1.5M two years ago. Flat or growing revenue is healthy. Three consecutive years of decline requires a steep discount and a clear turnaround plan.

Red flag: The seller only wants to discuss trailing twelve months or says "this year is our best year ever" without providing prior year data.

2. What percentage of revenue comes from your single largest customer?

This is the customer concentration question, and it kills more deals than any other single factor. If one customer accounts for more than 25% of revenue, most SBA lenders will flag the deal. If that customer leaves post-close, your revenue drops by a quarter overnight.

Red flag: The seller downplays it with "they have been with us for 15 years, they are not going anywhere." Loyalty to the current owner does not transfer to the new owner automatically. Read more about customer concentration risk and how to handle it.

3. What does your accounts receivable aging look like?

Receivables over 90 days are often uncollectible. If a business shows $300,000 in receivables but $100,000 is past 90 days, the real collectible number is closer to $200,000. That gap affects working capital and your purchase price.

Red flag: The seller does not track AR aging or says "everyone pays eventually."

4. Are there any pending tax issues, audits, or disputes?

Unresolved tax issues can become your problem in an entity purchase. Even in an asset purchase, state sales tax liabilities sometimes follow the business. Ask for the last three years of federal and state tax returns and confirm everything is filed and current.

Red flag: The seller has not filed recent returns, owes back payroll taxes, or is currently under audit with no clear resolution timeline.

5. Is any revenue collected off the books or in cash without being reported?

Sellers sometimes brag about unreported cash revenue as if it is a bonus. It is not. You cannot finance a purchase based on income the seller did not report. Unreported income also means the seller committed tax fraud, and you have no way to verify those numbers. If the seller cheats the IRS, they will cheat you.

Red flag: The seller says "the real number is higher than what the tax returns show" and expects you to pay for the unreported portion.

6. What are all outstanding debts and liabilities?

Get a full picture: bank loans, equipment financing, lines of credit, credit card balances, vendor payables, deferred revenue, gift cards outstanding, and any personal guarantees tied to business obligations. In an asset sale, most debt stays with the seller. In an entity purchase, you inherit everything.

Red flag: The seller is vague about liabilities or you discover debts that were not disclosed during initial conversations.

7. What is your total compensation, including salary, benefits, and personal expenses run through the business?

This is the foundation of your SDE calculation. Owner compensation includes salary, health insurance, car payments, phone bills, personal travel, retirement contributions, and any other personal expenses run through the business. The total can be surprisingly large. An owner taking a $90,000 salary might have another $60,000 in perks and personal expenses.

Red flag: The seller claims very low compensation. Either they are underreporting perks (which means SDE is higher than stated) or the business genuinely cannot support a market-rate salary (which is worse).

8. Are there any pending large capital expenditures or repairs?

A roof replacement, HVAC overhaul, fleet upgrade, or technology migration can cost tens of thousands of dollars. If the seller has been deferring these expenses to make the business look more profitable, those costs transfer to you on day one.

Red flag: Aging equipment that is fully depreciated but still in use, or the seller saying "everything is in great shape" when a visual inspection suggests otherwise.

9. What is the insurance claims history for the last five years?

Insurance claims reveal problems the seller may not voluntarily disclose. Workers' compensation claims can indicate safety issues. Property claims can reveal recurring problems like flooding or equipment failures. Liability claims can point to product or service quality issues.

Red flag: Multiple workers' comp claims, repeated property damage claims, or any professional liability claims that suggest negligence.

10. What are the seasonal patterns in revenue and cash flow?

Many businesses have significant seasonal swings. A landscaping company might do 70% of its revenue between April and October. An HVAC business peaks in summer and winter. Understanding seasonality is critical for cash flow planning, especially if you are taking on debt payments that do not fluctuate with the season.

Red flag: The seller presents annual numbers without mentioning that three months of the year are essentially break-even or cash-negative.

Operational Questions (11-18)

11. What happens to the business if you leave tomorrow?

This is the owner dependency question, and the answer reveals everything about operational risk. A healthy business can run without the owner for weeks. A fragile one falls apart within days. Listen carefully to how the seller answers. If they hesitate or say "well, I am pretty involved in everything," that is a problem.

Red flag: The owner is the top salesperson, the only one who knows the pricing, and the person every customer calls directly.

12. Which key employees are staying after the sale?

Key employees are often the real asset in a small business. A lead technician, office manager, or sales lead who leaves after the sale can cripple operations. Ask which employees know about the sale, which have been offered retention incentives, and which have expressed concerns.

Red flag: Key employees do not know about the sale, there are no retention agreements, or the seller says "they will be fine" without any evidence.

13. Are operating procedures documented?

Documented SOPs mean you can train new employees, maintain quality, and scale. Undocumented processes mean everything lives in the heads of current employees. Ask to see the actual documentation, not just hear that it exists.

Red flag: No written procedures exist. All knowledge is tribal. The seller says "everyone just knows what to do."

14. What software, systems, and technology does the business use?

Inventory management, CRM, accounting software, scheduling tools, POS systems, and industry-specific platforms. You need to know the full technology stack, what it costs, whether licenses transfer, and whether any systems are outdated or approaching end of life.

Red flag: The business runs on spreadsheets, outdated software, or a custom system that only one person understands.

15. What is the lease situation?

If the business operates from a leased location, the lease is critical. How many years remain? What are the renewal terms? Is there an assignment clause allowing transfer to a new owner? What is the rent relative to market rate? A lease expiring in six months with no renewal guarantee is a major risk.

Red flag: The lease expires within a year, the landlord has not agreed to an assignment, or the current rent is significantly below market (meaning a big increase is coming).

16. What is the condition and age of major equipment?

Get a list of all major equipment with purchase dates, maintenance records, and estimated remaining useful life. Calculate the replacement cost for anything that will need replacing within three years. Deduct that from your offer.

Red flag: Equipment is over 15 years old with no maintenance records, or the seller recently leased new equipment (adding debt) to make the operation look better for sale.

17. Who are the critical vendors and suppliers?

Identify any vendor where the relationship is based on the owner's personal connections rather than a formal contract. If the business gets preferred pricing or priority service because the owner and vendor are friends, that advantage may not survive the transition.

Red flag: A single-source supplier with no contract, or vendor terms that depend entirely on the owner's personal relationship.

18. What are the supply chain risks?

Ask about lead times, backup suppliers, and any disruptions in the last three years. A business that depends on a single overseas supplier for a critical component is one shipping delay away from missing deadlines and losing customers.

Red flag: Single-source suppliers for critical inputs, recent supply disruptions with no contingency plan, or raw material costs that have been rising faster than the business can raise prices.

Customer Questions (19-24)

19. How does the business acquire new customers?

Understand the full customer acquisition funnel. Is it referrals, online marketing, cold calling, trade shows, or the owner's personal network? If the primary acquisition channel is the owner's personal relationships, new customer flow may stop after the transition.

Red flag: The owner says "most of our business comes from my personal network" or "people just call us." No documented or repeatable marketing system exists.

20. What is the customer retention rate?

A business with 90%+ annual retention has predictable revenue. A business with 60% retention must replace 40% of its customer base every year just to stay flat. Calculate retention for the last three years and look for trends.

Red flag: Retention has been declining, or the seller does not track it at all.

21. Do any customer contracts have change-of-control clauses?

Some contracts allow the customer to terminate if the business changes ownership. If your top five customers all have change-of-control termination rights, you could lose them immediately after closing. Review every material contract for these provisions.

Red flag: Major customer contracts include change-of-control clauses with easy termination, and no one has discussed continuity with those customers.

22. What do online reviews say about the business?

Check Google, Yelp, BBB, industry-specific sites, and social media. Reviews reveal customer sentiment, recurring complaints, and service quality issues. A pattern of negative reviews about the same problem (slow response times, poor quality, billing disputes) indicates a systemic issue, not a one-off.

Red flag: Average rating below 3.5 stars, recurring negative themes, or recent review trends that are worse than historical averages.

23. Are any customers actively threatening to leave or expressing dissatisfaction?

Ask directly. A seller who is about to lose a $200,000-per-year customer has a strong motivation to close the sale before that happens. Cross-reference the answer with customer communications if you can access them during due diligence.

Red flag: The seller deflects or says "all our customers are happy" while the online reviews tell a different story.

24. What does it cost to acquire a new customer?

Customer acquisition cost (CAC) tells you how expensive growth will be. If the business spends $500 to acquire a customer worth $2,000 in lifetime value, that is healthy. If CAC is $1,500 and lifetime value is $2,000, margins on growth are razor thin.

Red flag: The seller does not know their CAC, or the number is high relative to customer lifetime value.

Legal Questions (25-30)

25. Are there any pending or threatened lawsuits?

Lawsuits are expensive to defend even when you win. Ask for full disclosure of any pending litigation, threatened claims, demand letters, or disputes. Do your own search of court records. In an asset purchase, most liabilities stay with the seller, but some (environmental, employment) can follow the business.

Red flag: Active litigation that the seller did not disclose, or a pattern of disputes suggesting operational or ethical problems.

26. Are all business licenses and permits current?

Expired licenses can shut down operations. Verify that all required federal, state, and local licenses are current and transferable. Some licenses require a new application when ownership changes, which can take weeks or months.

Red flag: Lapsed licenses, pending violations, or licenses that are non-transferable and require a lengthy new application process.

27. Are there any environmental issues or liabilities?

For businesses involving chemicals, manufacturing, auto repair, dry cleaning, or fuel storage, environmental liabilities can exceed the value of the business. A Phase I environmental assessment costs $2,000 to $5,000 and can save you from a six-figure cleanup bill.

Red flag: The property has a history of chemical use, underground storage tanks, or the seller resists an environmental assessment.

28. Who owns the intellectual property?

Trademarks, patents, trade secrets, proprietary software, customer lists, and domain names. Verify that the business entity (not the owner personally) owns all critical IP. If the owner holds the trademark or domain name personally, those must be transferred as part of the deal.

Red flag: IP is registered to the owner personally, key software was built by a contractor with no work-for-hire agreement, or the business uses a name it does not have trademark rights to.

29. Are there any non-compete issues?

Two sides to this: First, will the seller sign a non-compete? Without one, the seller could open a competing business across the street. Second, is the business itself subject to any non-compete restrictions from a prior transaction or agreement?

Red flag: The seller hesitates to sign a non-compete, or the business operates under restrictions from a previous sale or franchise agreement.

30. Are there any zoning or regulatory compliance issues?

Verify that the business location is properly zoned for its use and that all regulatory requirements are met. A business operating outside its zoning classification or without required permits is at risk of being shut down.

Red flag: The business has a conditional use permit that expires, operates in a zone that does not technically allow its use, or has received compliance notices from regulatory agencies.

Transition Questions (31-37)

31. What is the real reason you are selling?

Retirement, health issues, burnout, relocation, partnership disputes, and new opportunities are all common and legitimate. The concerning reasons are the ones sellers hide: declining revenue, a customer about to leave, a new competitor entering the market, or a regulatory change that will increase costs.

Red flag: The stated reason does not match the seller's behavior. A seller who says they are retiring but is only 45 and has no other plans may be running from something.

32. How long will you stay for the transition?

Most SBA lenders require a transition period. Two to four weeks is too short for any business with complexity. Three to six months is standard. Twelve months is appropriate for businesses with significant owner dependency or relationship-driven revenue.

Red flag: The seller wants to leave immediately after closing, or will only commit to two weeks of transition.

33. Will you sign a non-compete agreement?

A non-compete prevents the seller from starting or joining a competing business in the same market for a specified period (typically two to five years within a defined geographic area). Without a non-compete, you are paying for a customer base that the seller could immediately start competing for.

Red flag: The seller refuses to sign a non-compete or wants an unreasonably narrow restriction (six months, two-mile radius).

34. Which employees know about the sale?

Employee communication is delicate. If key employees find out from rumors rather than a planned announcement, they may start job searching. Understand who knows, how they reacted, and what the plan is for informing the rest of the team.

Red flag: No employees know, and the seller has no plan for telling them. Or key employees found out and are already looking for other jobs.

35. What is your ideal timeline for closing?

A reasonable timeline is 60 to 120 days from signed LOI to closing, depending on the complexity of the deal and the type of financing. Shorter timelines pressure you to skip due diligence steps. Longer timelines can indicate seller indecision or deal fatigue.

Red flag: The seller pushes for a two-week close (they are hiding something) or keeps extending the timeline indefinitely (they may not actually want to sell).

36. Are there other offers or interested buyers?

Competition among buyers can drive up price and pressure you into concessions. Ask directly, and ask the broker too. Multiple offers are normal for well-priced businesses. But a seller who claims five competing offers yet accepts your below-asking LOI is probably bluffing.

Red flag: Artificial urgency created by phantom competing offers, or a broker who pressures you to "act fast" without transparency.

37. Where do you see this business in three years without you?

This question forces the seller to think honestly about the business's trajectory independent of their involvement. Listen for specific growth opportunities, market trends, and realistic assessments. A seller who says "it will be great" without specifics is not giving you useful information.

Red flag: The seller cannot articulate a growth path, or everything they describe depends on their personal involvement, relationships, or industry reputation.

How to Use These Questions Effectively

Do not fire all 37 questions at a seller in one meeting. Spread them across multiple conversations. Start with the financial and operational questions, which are the most objective. Save the transition and legal questions for later in the process when you have more leverage and context.

Take detailed notes during every conversation. Sellers sometimes contradict earlier statements, and you need a record to catch inconsistencies. Bring a trusted advisor or partner to meetings when possible. A second set of ears catches things you miss.

Cross-reference every answer with documentation. If the seller says retention is 90%, ask for the data. If they say equipment is in great shape, get maintenance records. Trust but verify is the foundation of good due diligence.

For a structured approach to organizing and tracking your findings, use the free due diligence checklist tool to make sure every category gets covered before you sign a purchase agreement.

You can also review our guide on 10 red flags in business acquisitions to know exactly what warning signs to watch for as the seller answers these questions.

Ready to Evaluate a Business?

BuyerEdge automates the financial analysis behind many of these questions. Upload the seller's financials and get instant analysis of revenue trends, customer concentration, SDE calculations, and red flags that take hours to find manually.

Start your free analysis and go into your next seller meeting with the data you need to ask the right follow-up questions.

Frequently Asked Questions

What are the most important questions to ask when buying a business?

The three most critical questions are: what percentage of revenue comes from the largest customer (concentration risk), what happens to the business if the owner leaves tomorrow (owner dependency), and what has the revenue trend been over the last three years (growth trajectory). These three questions alone will disqualify the majority of bad deals before you invest time and money in due diligence.

How do I know if a business is worth buying?

A business is worth buying when the financials are verifiable, the revenue is diversified across multiple customers, operations can run without the current owner, the asking price aligns with market multiples for the industry, and the growth trajectory supports your debt service and return requirements. Use these 37 questions to systematically evaluate every dimension of the business.

What should I look for in a business's financials before buying?

Start with three years of tax returns and monthly P&L statements. Look for consistent or growing revenue, stable gross margins, reasonable owner compensation, and clean accounts receivable. Compare tax returns to the broker-provided financials line by line. Discrepancies are common and not always a dealbreaker, but they must be explained and documented. Calculate SDE using our SDE guide to understand what the business actually earns for the owner.

How do I evaluate the risk of buying a small business?

Risk comes from five main areas: customer concentration (revenue depending on too few customers), owner dependency (operations depending on the seller), financial inconsistencies (numbers that do not add up), legal liabilities (lawsuits, compliance, environmental), and market risk (industry decline, new competitors). These 37 questions are designed to surface risk in every category so you can price it into your offer or walk away before wasting time and money.