How to Sell a Small Business: Step-by-Step Guide

Most business owners sell once in their lifetime. The process takes 6–12 months from first marketing contact to closing wire — longer than almost everyone expects. The tax decisions that matter most must be locked in before you sign a letter of intent. Here's what the process actually looks like and where each decision point falls.

This is the procedural complement to the 10-year exit planning roadmap, which covers strategic preparation and EBITDA optimization. This guide covers the transaction itself: finding buyers, evaluating offers, surviving due diligence, and closing.

Step 1: Get the business financially ready (12–36 months before)

The highest-value preparation work happens 2–3 years before you market the business — not 60 days before. Buyers pay for predictability and transferability. These are the variables that move your multiple:

• Normalize your financials. Tax-minimization accounting (maxing add-backs, running personal expenses through the business) makes sense when you're operating. It makes your business look less profitable than it is when you're selling. Minimum 3 years of clean, accrual-basis financial statements before a sale. Every add-back you claim in the marketing package will be scrutinized — and disputed ones reduce your credibility.
• Reduce owner dependence. If key customer relationships, institutional knowledge, or production capacity lives only with you, buyers will structure an earnout that keeps you working 2–3 more years on their terms. Build a management team that can run operations 30 days without you.
• Resolve open legal items. Unresolved litigation, UCC liens, lease assignment restrictions, IP ownership gaps — buyers' counsel will find every one of these in diligence. Resolve them before going to market.
• Max out retirement contributions while you have business income. A Solo 401(k) + Cash Balance Plan combination can shelter $200K–$410K/year depending on age. Once the business is sold, that high-income window closes. See the retirement plans for business owners guide.

Step 2: Know your after-tax number before you pick a price

Most owners anchor on gross sale price. What matters is after-tax, after-fees proceeds invested to fund your retirement. These are different numbers — sometimes by $500K or more on a $3M deal.

• Asset sale vs. stock sale changes your tax bill significantly. In an S-corp asset sale, all gain flows through at capital gains rates (max 23.8% federal). In a C-corp asset sale, the corporation pays tax first, then you pay again on the dividend — effective rate often 40%+. See the asset sale vs. stock sale tax guide for a numerical example.
• Use the exit calculator to model proceeds. The business exit value calculator estimates headline proceeds by EBITDA and industry multiple. Pair it with the installment sale calculator to model receiving payments over 3–5 years to avoid the top 23.8% LTCG bracket.
• Your business value is driven by EBITDA multiple. Industry multiples range from 3–5× in commoditized service businesses to 8–15× in SaaS. See the business valuation methods guide for how to calculate SDE, normalize EBITDA, and apply applicable multiples.

Step 3: Assemble your advisory team

Three advisors are essential. Trying to reduce this number is a common mistake that costs more than the fees saved.

• Business broker or M&A advisor. Brokers handle deals under $3M (market rate: 10–12% on deals under $1M, 6–10% on $1M–$3M). M&A advisors handle $3M+ transactions, charging a monthly retainer ($5K–$15K) plus a success fee (typically 2–5% of deal value on a Lehman or modified Lehman formula). The distinction matters: brokers list businesses; M&A advisors run managed competitive processes that create buyer tension and often deliver significantly better deal terms.
• M&A attorney. Not a general-practice attorney. You need someone who reviews Asset Purchase Agreements and Stock Purchase Agreements daily. An APA/SPA is a 40–100 page document filled with representations and warranties, indemnification caps and baskets, survival periods, and working capital pegs. Each negotiated point affects your post-close risk and actual proceeds.
• Fee-only financial advisor with M&A experience. Coordinates tax strategy before and during the deal: installment sale elections, charitable planning timing, PTET deduction optimization, post-close investment of proceeds. Also models whether the post-sale portfolio actually replaces your business income — a question most owners don't ask until after the wire settles. This is what Business Owner Advisor Match helps you find.

Step 4: Go to market — confidentially

A confidential, managed process protects both business value and employees. If customers, suppliers, or key employees learn the business is for sale before a deal is signed, morale collapses, customers defect, and key employees quietly update their résumés — damaging the very asset you're trying to sell.

• NDAs before any financial information. Every prospective buyer signs a mutual NDA before receiving any financial data. Blind teasers (anonymous summary describing the business category, revenue range, and deal thesis without identifying the company) go out first.
• The Confidential Information Memorandum (CIM). A 20–50 page document covering business history, financial performance (3 years normalized EBITDA), market position, management team, customer overview, and growth thesis. The CIM answers 80% of buyer questions before the first management call. A poorly prepared CIM signals an owner who isn't serious — and experienced acquirers notice.
• Managed process generates competition. A broker or M&A advisor simultaneously contacts a curated list of strategic acquirers and financial sponsors, then sets a deadline for Indications of Interest (IOI). Competition among buyers is your primary source of negotiating leverage. Without it, you have none.

Step 5: Evaluate offers and negotiate the LOI

A Letter of Intent (LOI) is typically non-binding on price and deal terms — but the exclusivity clause is binding. Once signed, you're locked out of talking to other buyers for 30–90 days. Sign the wrong LOI and a buyer can systematically chip the price during diligence ("retrade") with no competitive pressure to stop them.

Step 6: Survive due diligence (60–120 days)

Due diligence is exhausting. Buyers and their lenders will ask for everything. Sellers who are unprepared spend the due diligence period firefighting, which creates the impression of risk — and justifies price chips.

• Financial due diligence. 3 years of tax returns, P&Ls, and balance sheets reconciled to bank statements. Revenue quality analysis: is the revenue real, recurring, and contracted? Every add-back claimed in the CIM gets examined — disputed add-backs reduce your EBITDA and, therefore, your deal price.
• Quality of Earnings (QoE) report. For deals over $2M, buyers typically commission a CPA firm to produce a QoE — an independent analysis of earnings quality, add-back validity, working capital patterns, and revenue sustainability. Cost: $15,000–$60,000 (paid by buyer). The QoE findings are the primary tool buyers use to justify price reductions. Sellers who commission a sell-side QoE in advance often neutralize this tactic and accelerate the process.
• Legal due diligence. Customer and vendor contracts (assignment clauses matter — some contracts terminate upon change of control), employment agreements, IP ownership documentation, litigation history, regulatory compliance, and real estate lease terms.
• Common deal-killers: Customer concentration discovered mid-diligence; undisclosed litigation or IRS notices; lease that can't be assigned without landlord consent (and landlord demands a rent reset); key employee who quits upon learning of the sale; fractured financials where the QoE can't reconcile bank deposits to reported revenue.

Step 7: Close and post-close obligations

Closing happens via wire transfer against signed APA/SPA documents and escrow confirmation. The mechanics are anticlimactic compared to the months of work to get there. Post-close obligations are what most owners underestimate.

• Indemnification escrow/holdback. 5–15% of deal price held in escrow for 12–24 months against reps-and-warranties claims. For deals above $5M, Representation and Warranty (R&W) insurance can replace the holdback — buyer gets coverage without tying up your cash, though premiums run 2–4% of insured value.
• Transition services agreement (TSA). Buyers of owner-dependent businesses almost always require 90 days to 2 years of seller involvement post-close. Duration and compensation terms are negotiated in the APA. Failing to negotiate this carefully can mean working for the buyer essentially for free.
• Post-close financial planning. See the post-exit financial roadmap guide: how to invest proceeds, manage an installment note, structure post-sale income, and plan for estate tax under the OBBBA's permanent $15M exemption.

Pre-LOI tax planning: the decisions that can't be undone

Several tax strategies must be in place before you sign an LOI. Once you're in exclusivity with a buyer, most of these moves are no longer available.

See the full exit tax strategy guide for all 10 strategies ranked by impact.