GUIDES · BUYING A BUSINESS
Buying a Business: The Step-by-Step Guide for First-Time Buyers
Buying an existing business is usually lower-risk than starting one — the revenue, customers, and track record already exist. The risk just moves from “will this work?” to “are these numbers real and is the price fair?” This guide walks the whole path: deciding what to buy, reading a listing without getting fooled, valuing it, the LOI, due diligence, financing, and closing — plus the specific places first-time buyers get burned.
By Adir Semana · Founder, IdeaCrystal
The path, step by step
Every acquisition moves through the same eight stages, whether it’s a $120k laundromat or a $3M service company. The depth changes; the sequence doesn’t.
Decide what kind of business to buy
Start with the shape of the market, not a specific listing. Fragmented, owner-operated categories are where individual buyers actually compete — laundromats have only about 10,900 establishments nationwide (a fragmentation score of 95/100), food trucks around 11,600 (98), and self-storage roughly 18,300 (97). Those are small, unglamorous, cash-generating businesses that private-equity roll-ups mostly ignore. Contrast that with full-service restaurants (over 257,000 establishments but a fragmentation score of 9, meaning they lean labor-heavy and thin-margin) or hotels (score 3) and golf courses (0), which are operator-intensive and rarely a first acquisition. Match the category to how much you want to work in it, your capital, and whether the earnings are recurring or lumpy before you look at a single listing.
Find businesses that are actually for sale
Most deals surface on marketplaces (BizBuySell, BusinessesForSale.com), through business brokers, or off-market via direct outreach to owners in a category you already understand. Marketplace listings are a starting point, not a shortlist — many are stale, overpriced, or franchise-resale portals dressed up as independent businesses. Broker-listed deals come with a prepared "CIM" (confidential information memorandum) that is essentially a sales document: useful for the raw numbers, not for the seller's framing. Off-market deals are harder to find but face less competition and less price inflation.
Read the listing critically
A listing headlines two numbers: asking price and "cash flow" (usually SDE — seller's discretionary earnings). Treat both as claims to verify, not facts. Check that the SDE reconciles to tax returns, not just a seller-prepared P&L. Look at the revenue trend over three years, not the trailing-twelve-months figure a seller can cherry-pick. Ask what share of revenue comes from the top one to three customers — high concentration is a real risk even when margins look healthy. The gap between a listing's story and its tax returns is where most bad deals hide.
Value it: SDE × multiple
Small businesses are valued as a multiple of SDE, and the multiple depends heavily on industry, size, and risk. Laundromats and similar recurring-revenue, low-labor businesses often trade at 3–4× SDE; HVAC and the trades run 2.5–3.5×; e-commerce brands 2.5–4× depending on brand strength and ad dependency; restaurants are typically the lowest at 1.5–2.5× given thin margins and key-person risk; most general service businesses land around 2–3×. Run the seller's add-backs yourself before trusting the SDE number, then sanity-check the asking price against the multiple range for the category.
Make an offer with a letter of intent
The LOI (letter of intent) is the non-binding term sheet that opens the exclusive diligence period. It sets the price, the deal structure (asset vs. stock), what financing you're assuming, the diligence window, and an exclusivity clause that stops the seller shopping the deal while you spend money verifying it. Getting the working-capital mechanism and any seller-note terms into the LOI early prevents a re-trade later. Use a template as a starting point, then have a deal attorney adapt it.
Do due diligence
This is the phase that separates a good buy from a lawsuit. Reconcile bank deposits to reported revenue, audit accounts-receivable aging, physically verify inventory, and reconcile every owner add-back against an actual paper trail. Above roughly $1M in enterprise value, most lenders will require a quality-of-earnings (QoE) report — an independent accountant normalizing EBITDA and flagging what they couldn't verify. Below that, you can often self-diligence with a structured checklist. Either way, run the last three years of tax returns against the seller's cleaned-up P&L before you trust a single number.
Finance the purchase
Two levers dominate small-business acquisitions: SBA loans and seller financing, usually combined. A common structure is roughly 10% buyer down payment, a 10% seller note, and an 80% SBA 7(a) loan — with the seller note often on "full standby" for the first two years (no payments), which helps your coverage ratio in the lender's eyes. The number that decides whether any of it works is DSCR: divide annual SDE by the annual loan payment. Lenders want at least 1.25× — the business earns its own note plus a 25% cushion. Below 1.0× the deal loses money from day one, and the fix is a lower price, longer term, lower rate, or bigger down payment.
Close
The final stretch is where real dollars still move. Finalize the working-capital peg and the post-close true-up mechanism, confirm licenses and permits transfer (some take lead time to reissue), get a firm financing commitment letter rather than a verbal pre-approval, and pin down the seller's training and transition period in writing. Negotiate a non-compete with a specific radius and term, and a holdback or escrow (commonly 10–15% of price for 6–12 months) against liabilities that surface after close. Do a final walk-through of physical assets and inventory immediately before signing.
What businesses actually sell for
Price is a multiple of verified SDE, and the multiple is driven by how durable and how transferable the earnings are. These are the ranges buyers see across common owner-operated categories. Run the SDE calculator first, then apply the range.
| Category | Typical multiple | Why |
|---|---|---|
| Laundromats & self-service | 3–4× SDE | Recurring revenue, low labor, semi-absentee — the high end of the small-business range. |
| HVAC & the trades | 2.5–3.5× SDE | Sticky demand and repeat customers, but key-person and licensing risk pull the multiple down. |
| E-commerce brands | 2.5–4× SDE | Multiple swings on brand strength and how dependent revenue is on paid ads. |
| General service businesses | 2–3× SDE | The default range for most owner-operated service companies. |
| Restaurants | 1.5–2.5× SDE | Lowest multiples given thin margins, high failure rate, and key-person risk. |
Multiple ranges reflect small-business (SDE-based) valuation norms for owner-operated companies. Larger, professionally managed businesses are valued on EBITDA at different multiples.
Where buyers get burned
Almost every bad acquisition traces back to trusting a number that wasn’t verified. These are the traps that show up again and again.
Inflated add-backs
The most common way a seller lifts the asking price is padding the add-back list — a "one-time" expense that actually recurs every year, a personal vacation booked as a business trip, or a family member's salary added back without proof they did no real work. Every add-back should have documentation. Unsupported ones inflate SDE, and since price is a multiple of SDE, a $50k phantom add-back at a 3× multiple is $150k of imaginary value.
The cleaned-up P&L vs. the tax return
Sellers present a P&L prepared for the sale. Tax returns are what was actually reported to the IRS — where under-reporting or over-stating shows up. When the two disagree, believe the tax returns. If a seller can't or won't produce three years of returns, treat that as the finding.
Unverifiable cash revenue
Cash-heavy businesses (laundromats, car washes, food service) are easy to overstate and impossible to fully verify after the fact. Match reported revenue to bank deposits and, where possible, to utility usage or supply purchases. Revenue you can't tie to an independent record is revenue you shouldn't pay for.
Franchise-portal listings
Some "businesses for sale" are actually franchise-resale or new-franchise leads — you're buying the right to pay ongoing royalties, not an independent going concern. Read whether the listing is an existing operating business with its own P&L or a franchise placement, and price the royalty stream into any valuation.
Customer or contract concentration
A clean P&L where 40% of revenue comes from one customer is a fragile business. If that customer is quietly shopping for a new vendor, the earnings you're buying can evaporate the quarter after close. Ask for a revenue-by-customer breakdown and, where the process allows, check the concentration risk yourself.
Non-transferable leases and licenses
Liquor licenses, health permits, and professional licenses are sometimes non-transferable, and a lease may require landlord consent or a fresh negotiation on change of control. Confirm transferability before you fall in love with a deal — a business you can't legally operate on day one isn't the business you thought you were buying.
Frequently asked questions
Is buying an existing business a good idea?
For most buyers, an existing business is lower-risk than starting from scratch: it already has revenue, customers, and a track record you can verify. The risk shifts from "will this work?" to "are the numbers real and is the price fair?" — which is a diligence problem, not a market-creation problem. The catch is that a good business rarely sells cheap, and a cheap one usually has a reason. The work is separating the two before you sign.
How much is a business worth with $100,000 in sales?
Revenue alone doesn't set the price — earnings do. Small businesses are valued on SDE (seller's discretionary earnings), not revenue, times an industry multiple. A business with $100k in sales might have $30k of SDE after a real add-back review; at a 2–3× multiple that's roughly $60k–$90k of value. A different business with the same $100k in sales but $10k of SDE is worth a fraction of that. Always work from verified SDE, not the top line.
Can I buy a business for $10,000?
Occasionally — very small, low-earning, or distressed businesses change hands at that level, and seller financing can shrink the cash you need at close. But a $10k business usually generates a $10k-ish level of profit, which may not replace a salary. More realistically, budget for a down payment (often ~10% of price under an SBA structure) plus working capital and diligence costs. The cash-to-close question is answered by the financing structure, not the sticker price.
How do you value a business for purchase?
Take the business's SDE (net profit plus owner salary, perks, one-time costs, and non-cash charges like depreciation), verify each add-back against documentation, then multiply by the industry-appropriate multiple — roughly 1.5–2.5× for restaurants, 2–3× for general service businesses, 3–4× for recurring-revenue businesses like laundromats. Then sanity-check whether the resulting price passes a financing test (DSCR of at least 1.25×) at the terms you can actually get.
What is due diligence when buying a business?
Due diligence is the verification phase after the LOI, where you confirm the seller's claims before committing. It covers financial (reconciling bank deposits to revenue, auditing add-backs and AR), legal (contracts, liens, licenses, litigation), and operational (customer concentration, key employees, lease terms) checks. On deals above roughly $1M, a quality-of-earnings report is usually part of it. Scale the depth to the deal size — a $150k acquisition doesn't need the same rigor as a $3M one, but the pre-LOI screening matters at every size.
Can you buy a business with an SBA loan?
Yes — the SBA 7(a) program is the most common financing path for buying an established small business, funding up to around 80–90% of the purchase price. Approval hinges on DSCR: the business's SDE has to cover the annual loan payment with at least a 1.25× cushion. A frequent structure pairs the SBA loan with a modest buyer down payment and a seller note on standby, which strengthens the coverage ratio the lender sees.
What is seller financing and why does it matter?
Seller financing is when the seller lets you pay part of the price over time instead of all at close. It matters for two reasons: it reduces the cash you need up front, and it keeps the seller's incentives aligned with the business actually performing after you take over — they only get paid in full if the earnings they promised are real. A seller who refuses any financing on an otherwise healthy business is worth a question.
Do I need a buying-a-business checklist?
Yes — a structured checklist is what keeps you from skipping the check that would have caught the problem. Work it in phases: screen before the LOI, go deep after, and confirm the closing mechanics before you sign. It doesn't replace a quality-of-earnings report or a deal attorney, but it tells you whether a listing is even worth spending that money on.
BEFORE YOU SIGN
Get an independent market read on any listing before you spend thousands on due diligence.
A seller’s numbers tell you what the business earned. A Deal Scan tells you what’s happening in the market underneath it — demand trend, competitor density, and review sentiment for the specific trade area. Run it on every listing you’re weighing, then spend the diligence budget on the one that clears the check.