Quick answer: Buying a business follows eight stages: define the thesis and criteria, source targets, value the business, arrange financing, agree a letter of intent, run diligence, sign the purchase agreement and close, then integrate. Price discipline, diligence and the plan for the first months are where buyers most often create or lose value. The path differs for individual buyers, search funds, platforms adding companies and buyers of divisions, so the first decision is which route fits the buyer’s capital, skills and goals.
Key points
- The path has eight stages and each one narrows the next. A written thesis shapes sourcing, sourcing shapes valuation, and valuation sets the limit that financing and negotiation must respect.
- A buyer’s value is a ceiling set by restated earnings, the risks inside them, the return the capital must earn and what lenders and the seller will fund. The lowest of those limits is the walk-away price.
- Financing is settled before the letter of intent, because a deal that cannot be funded fails late and at a cost to both sides. Seller notes, rollover equity and earnouts share risk when a gap remains.
- Diligence is planned from the thesis, with cheap tests first and each finding routed in advance to a price change, a structure change, a condition or a walk-away.
- Integration planning starts during diligence. The first hundred days decide whether the customers, people and earnings the buyer paid for stay in place.
A buyer’s path in eight stages
Buying a company is a sequence of decisions in which each stage narrows the next. A written thesis shapes where the buyer looks, what the buyer finds shapes what it can pay, and the price it can pay sets what financing and negotiation must achieve. The table is the map, and the sections after it take each stage in turn, with the guide that goes deeper.
| Stage | The question it answers | What the buyer leaves with |
|---|---|---|
| Thesis and route | Why buy, what kind of company, and by what route | A written thesis and target criteria |
| Sourcing | Where do the right companies come from | A tracked pipeline of owners in conversation |
| Valuation | What is a target worth to this buyer | A walk-away price |
| Financing | Who funds the price, and in what layers | A funding plan the lender and investors accept |
| Letter of intent | On what terms will the seller negotiate exclusively | Signed non-binding terms and exclusivity |
| Diligence | Is the thesis true | Findings routed to price, structure or exit |
| Agreement and closing | Who bears which risks | A signed contract and a closing |
| Integration | Does the business keep what was bought | A first-period plan and a scorecard |
The same sequence is described from the process side in the overview of the buy-side acquisition process, and the comparison of sell-side and buy-side advisory sets out what acting for a buyer involves.
Thesis and route: the first decision
A thesis states why the buyer is buying this kind of business and what must be true for the price to work. It names what the buyer brings that the current owner does not, such as capital, operating skill, a customer base or a platform to join, and what the buyer can afford to lose. The thesis then limits the search to industries, sizes and places the buyer can evaluate and run.
The route comes with the thesis. An individual buying one company to run usually relies on personal capital, bank debt or an SBA-guaranteed loan, and a seller note.[1] An entrepreneur who raises investor money to look for a company follows the model in the guide to search funds and self-funded searchers. A company that grows by acquisition uses the playbook in the guide to add-on acquisitions and buy-and-build, and a buyer of a division meets the separation problems in the guide to carve-out acquisitions. Each route changes who funds the deal, who approves it and how fast it can move.
Sourcing: finding owners who will talk
Targets come from broker listings, advisor-led processes, direct outreach to owners who have not listed, industry contacts and referrals from accountants and attorneys. Listed businesses arrive with materials and with competing bidders. Direct outreach takes longer, but a conversation that begins there often has no other buyer in it. Active buyers combine channels and track every conversation in one pipeline, from first contact to letter of intent. The guide to sourcing acquisition targets compares the channels, and the guide to buying a business in Charlotte applies them to one market.
Valuation: a ceiling and not a single number
A buyer’s value is the highest price at which the purchase still works. It starts from earnings restated on the buyer’s own cost basis, adjusts for the risks inside them, and is checked against the return the buyer’s capital must earn and the amount lenders and the seller will fund. The lowest of those limits is the walk-away price.
SBA’s guide to buying an existing business lists valuation methods including capitalized earnings, excess earnings, cash flow, tangible assets and specific intangibles.[2] The guide to valuing an acquisition target builds the ceiling step by step. The guides to valuation multiples and add-backs explain the inputs, and owner-operated companies are often quoted on seller’s discretionary earnings, which the comparison of SDE and EBITDA explains.
Financing: lining up the money before the offer
Buyers pay for an acquisition with layers of capital: their own equity, senior bank debt, a seller note and sometimes rollover equity or mezzanine debt. Lenders size debt to cash flow, so the layer with the least room caps the price, and notes, rollover equity and earnouts fill a gap by moving risk to the seller. A loan under SBA’s 7(a) program can finance a change of ownership.[1] SBA’s Standard Operating Procedure 50 10 8.1 took effect on October 1, 2026, so older articles may be out of date, and the lender confirms current requirements.[3] The guide to financing a business acquisition ranks the layers, the guide to SBA 7(a) loans for buying a business states what the published terms say, and the guide to rollover equity and seller notes covers the seller’s share of the risk.
The letter of intent: terms that carry the thesis
The letter of intent states the price and the assumptions behind it, how the price is paid, the treatment of debt and working capital, what diligence will cover and how long it will take, how the deal is financed and what exclusivity the buyer asks for. Usually only a few provisions bind, so the protection comes from writing the assumptions down. A later change of terms then rests on a documented premise. The guide to writing a letter of intent as a buyer covers the drafting, the seller’s reading of a letter of intent shows how the other side will take it, and the guide to exclusivity and no-shop provisions explains the clause a buyer most wants.
Diligence: testing the thesis
Diligence is planned from the thesis and not from a generic list. The buyer ranks the facts that must be true, tests the cheap ones first and routes every finding in advance to a price change, a structure change, a closing condition or a walk-away. The guide to building a buyer’s diligence plan sets out the team and the sequence.
The financial workstream, often a quality of earnings review, tests whether earnings are real and repeat. The guide to debt and debt-like items and the working capital peg guide explain two adjustments that move proceeds without changing the headline price. The guide to red flags shows what findings tell a buyer, and the hub on due diligence maps every workstream.
The purchase agreement and closing
The purchase agreement allocates risk. The structural choice comes first. In an asset purchase the buyer selects the assets and liabilities it takes, and in a stock purchase it takes the company as it stands, as the comparison of asset and stock sales explains. The agreement then sets the seller’s statements about the business and the remedies if they are wrong, which the guide to representations, warranties, indemnification and escrows covers. The guide to representations and warranties insurance explains a policy that can sit alongside or in place of part of that protection.
The non-compete and non-solicit guide covers the covenants that protect goodwill, and the seller’s guide to purchase agreement terms shows the same document from the other side. Antitrust counsel confirms whether a premerger filing is needed, and the Hart-Scott-Rodino size-of-transaction threshold is $133.9 million for 2026.[4]
Integration: the first months decide what was bought
Value can be lost after closing, and the causes are mostly visible beforehand: customers or key people leave, cash is mismanaged, or integration outruns the business’s capacity. The plan starts in diligence. The guide to the first hundred days after an acquisition sets the order of work: retention and communication, cash and reporting, learning before changing, and a scorecard against the thesis. The owner’s role after closing is covered in the guide to transition periods and post-closing roles, and the key-person guide explains why relationships carry so much of the value.
Advisors and sector guides
SBA’s guide recommends working with an attorney and an accountant.[2] A buy-side M&A advisor adds work on criteria, outreach, valuation, structure and negotiation, and The Impetus Group provides buy-side M&A advisory from preparation and outreach to negotiation and closing. Buyers focused on one sector will find the checks that matter most in the guides to buying a business by industry. This roadmap is general education and not legal, tax, lending or investment advice.
Frequently asked questions
What are the steps to buy a business?
The usual steps are to define the thesis and criteria, source targets, value the business, arrange financing, agree a letter of intent, run diligence, sign the purchase agreement and close, then integrate. Each stage has an output: a target profile, a pipeline, a walk-away price, a funding plan, signed terms, findings, a contract and a first-period plan.
How much cash does a buyer need to buy a business?
It depends on the price, the lender and the seller’s willingness to finance part of it. Buyers combine their own equity with bank or SBA-guaranteed debt and often a seller note.[1] Lenders size debt to cash flow, so the equity needed is set by how much debt the business can carry, which a buyer confirms with the lender early.
Does a buyer need an advisor to buy a business?
SBA’s guide to buying an existing business recommends working with an attorney and an accountant.[2] A buy-side M&A advisor adds work on criteria, outreach, valuation, structure and negotiation, which matters most to buyers without a deal team. The comparison of sell-side and buy-side advisory explains the difference.
How long does it take to buy a business?
It varies with sourcing, the seller’s readiness, financing and the complexity of diligence. Finding the right company often takes longer than closing it. Financing steps and third-party consents add time that the buyer controls less than the pace of its own diligence, so planning in phases is more reliable than a fixed calendar.
What mistakes cost first-time buyers the most?
Paying for the seller’s story instead of restated earnings, underestimating the owner’s role and leaving financing unconfirmed. Problems found after closing cost the most to fix. A written thesis, a walk-away price set in advance and a diligence plan tied to the thesis reduce that risk.
Thinking about a sale or an acquisition?
The Impetus Group provides sell-side and buy-side M&A advisory, from preparation and buyer outreach to negotiation and closing. A transactional valuation is often the first step, scoped and priced separately.
Related guides
- How a Buy-Side Acquisition Process Works: From Strategy to Integration: The stages of acquiring a company: criteria and sourcing, outreach, valuation, the letter of intent, diligence, financing, the purchase agreement and integration.
- Sell-Side vs. Buy-Side M&A Advisory: What Each Does: Sell-side advisors represent the owner selling a company. Buy-side advisors represent the acquirer. See what each does, how they differ and when you need one.
- Financing a Business Acquisition: Equity, Bank Debt, Seller Notes and SBA Loans: How buyers fund an acquisition: equity, senior debt, SBA-guaranteed loans, seller notes, mezzanine and rollover equity, with a sources and uses example.
- Quality of Earnings Report: What It Is and What Buyers Test: A quality of earnings report tests whether a company’s reported profit is real and repeatable. See what buyers examine, how it affects price and how sellers prepare.
- Buying a Business in Charlotte, NC: Sourcing, Financing and Local Due Diligence: How to buy a business in Charlotte, NC: where buyers find targets, how bank, seller-note and SBA 7(a) financing fit, and the lease, license and workforce checks.
- Sourcing Acquisition Targets: How Buyers Find Businesses to Buy: Where buyers find acquisition targets: broker listings, advisor-led processes, direct outreach to owners, industry contacts and referrals, plus pipeline tracking.
Sources
- 7(a) loans. U.S. Small Business Administration. Accessed October 13, 2026.
- Buy an existing business or franchise. U.S. Small Business Administration. Accessed October 13, 2026.
- Information Notice: Issuance of SOP 50 10 8.1. U.S. Small Business Administration. Accessed October 13, 2026.
- New HSR thresholds and filing fees for 2026. Federal Trade Commission. Accessed October 13, 2026.
This guide is general education. It is not a valuation opinion, appraisal, investment advice, or legal or tax advice. How these guides are made.