Preparing to Sell Your Business: What to Do 12–24 Months Before You Go to Market

According to BizBuySell's 2025 Year in Review, the small business transaction market set records in 2025 with 9,586 closed deals. Yet only 15% of business owners have undergone a professional valuation before listing. Another 53% are working off a rough estimate. The remaining 33% have no idea what their company is worth. That gap between assumption and reality is where deals collapse, or close at a fraction of what the business should have commanded.

This guide covers what to do in the 12–24 months before you go to market. Not the deal process itself (that starts when you engage a buyer). This is the work that determines whether buyers fight over your business or pass on it.

Why Preparation Is the Difference Between a Good Sale and a Great One

The data on unprepared sellers is blunt. Deloitte's 2025 Private Company Outlook survey of 100 private company leaders found that the number-one reason sellers received lower-than-expected valuations was going to market without conducting an exit readiness assessment beforehand. Not bad timing. Not a weak economy. A lack of preparation.

On the buyer side, the numbers are equally clear. Bain & Company's 2026 Global M&A Report, based on a survey of 300+ M&A executives, found that 75% of frequent acquirers now meet or exceed their synergy targets, largely because they've gotten more rigorous about diligence. That rigor cuts both ways: from the seller's perspective, every gap in your financials, every undocumented process, every customer concentration risk becomes ammunition for a buyer to renegotiate. Or walk.

The owners who close at the top of their range share a pattern: they built a business exit strategy and spent 12–24 months before going to market making their business easier to buy. They cleaned their books, reduced their own involvement in day-to-day operations, diversified their revenue, and built the kind of business a buyer could underwrite with confidence.

Preparation doesn't guarantee a premium. But going to market unprepared almost guarantees you'll leave money on the table.

24 Months Out: Lay the Foundation

Two years before you plan to go to market, the goal is straightforward: understand where you stand and start closing the gaps.

Get a Preliminary Valuation

You need a realistic number before you can plan around it. Not a back-of-the-napkin guess based on what you heard a competitor sold for. A formal assessment that accounts for your normalized earnings, your industry's current multiples, and the specific characteristics of your business that push the number up or down.

BizBuySell's 2025 data shows the median cash flow multiple for small business transactions at 2.61x, with revenue multiples averaging 0.69x. But those are medians. A business with recurring revenue, low customer concentration, and a management team that operates independently of the owner can trade well above those numbers. A business where the owner is the primary customer relationship, the primary decision maker, and the primary revenue generator will trade below.

The valuation tells you two things: what you'd get if you sold today, and what you'd need to fix to close the gap between that number and what you want.

Clean Up Financial Statements

Buyers and their diligence teams will scrutinize three years of financial history. That means you need three years of clean, consistent, preferably GAAP-compliant or reviewed financial statements.

Start by identifying every owner add-back: above-market compensation, personal vehicles, family members on payroll who aren't essential to operations, one-time legal or consulting fees, and discretionary expenses that wouldn't exist under new ownership. These adjustments form the basis of your normalized EBITDA or SDE, the number a buyer's model is built on.

If your books are managed by a part-time bookkeeper with QuickBooks and a shoebox of receipts, this is the year to upgrade. The SBA maintains a directory of resources for owners preparing a business for sale, and SCORE offers free mentoring that can help you find the right financial professionals. Engage a CPA or outsourced CFO who understands M&A-quality financials. The cost of a year of quality-of-earnings-ready books is trivial compared to the discount a buyer applies when financial statements don't hold up under scrutiny.

Identify and Document Normalized EBITDA

Beyond clean statements, you need a clear add-back schedule. Every adjustment should be defensible. Buyers will challenge each one. Common add-backs include owner compensation above market rate (typically $150,000–$250,000 for most small businesses, though this varies by industry and role), one-time expenses, non-recurring legal costs, and personal expenses run through the business.

The goal is a normalized EBITDA number that a buyer can rely on as the foundation of their offer. The cleaner and more defensible this number, the less room a buyer has to discount it.

Begin Reducing Owner Dependence

If you are the business (you hold the key customer relationships, make every operational decision, are the only person who knows how things actually work), your business has a problem buyers can see from a mile away.

Start delegating. Hand off customer relationships to your next-tier managers. Document the decisions you make daily so someone else could make them. If you don't have a next-tier manager, that's the first hire to make.

The test is simple: could your business run for 90 days without you showing up? If the answer is no, a buyer knows it, and they'll price that risk into their offer.

18 Months Out: Strengthen the Business

With the foundation set, the next six months are about eliminating the specific risk factors that give buyers negotiating leverage.

Diversify Your Customer Base

Customer concentration is one of the most common deal killers in the lower middle market. If a single customer accounts for more than 25% of your revenue, buyers will either discount the multiple, structure an earnout around that customer's retention, or walk entirely.

According to FOCUS Investment Banking, customer concentration above 20% of revenue typically triggers a detailed buyer review and can reduce transaction valuation by 20–35%. The fix takes time. That's why you start at 18 months, not 6.

The work is straightforward even if it's not easy: expand your sales pipeline, pursue new verticals, and reduce the proportional weight of your largest accounts. You don't need to fire your biggest customer. You need to grow the rest of the book until no single client dominates.

Build or Formalize the Management Team

Buyers want to acquire a business, not a job. If your management team is you plus a few loyal employees who've been with you for 15 years but don't have defined roles, that's a risk.

Formalize titles, responsibilities, and reporting structures. If you have a strong operator who runs day-to-day but doesn't have the title or compensation to match, fix that now. Buyers pay attention to whether key people have retention incentives: employment agreements, non-competes, and compensation structures that keep them in place through a transition.

The management team is one of the first things a PE firm evaluates in diligence. Private equity buyers, who represent the dominant buyer class in the $5M–$50M deal range according to IBBA's 2025 Market Pulse research, are specifically underwriting whether the team can execute without the seller. That same research shows the typical engagement-to-close timeline runs 6–10 months, with an additional 3–6 months of seller transition, reinforcing why preparation must start well before you go to market.

Document SOPs and Key Processes

If your operating procedures live in your head or in a handful of tribal-knowledge employees, that's a liability in diligence. Buyers want documented, transferable processes.

This doesn't require an enterprise-grade documentation system. It means writing down how your business actually runs: how you onboard customers, how you deliver your product or service, how you handle billing disputes, how you manage inventory or project timelines. The format matters less than the existence.

Resolve Legal, IP, and Compliance Issues

Outstanding litigation, unregistered trademarks, expired contracts, environmental liabilities, or unresolved regulatory issues will surface in diligence. Every one of them becomes a negotiation point, or a deal breaker.

Run a legal audit now. Renew any lapsed contracts with key vendors or landlords. Register any unprotected intellectual property. If there's pending litigation, work to resolve it or at least understand the exposure so you can address it proactively during the sale process rather than having a buyer discover it.

12 Months Out: Optimize for Buyers

One year out, the business should be clean, the team should be in place, and the financials should tell a coherent story. Now you're building the case for why a buyer should pay a premium.

Shift Revenue Toward Recurring or Contractual Models

Recurring revenue trades at a higher multiple than project-based or one-time revenue. This is true across nearly every industry and every buyer type. A landscaping company with 200 monthly maintenance contracts is worth more than one doing the same revenue through one-off projects.

If your business is project-based, look for ways to introduce retainers, maintenance contracts, subscription models, or annual agreements. Even converting 20–30% of your revenue to a recurring structure can move the multiple by 0.5x or more.

Optimize Working Capital

Buyers model working capital requirements as part of their offer. If your business ties up excessive capital in aged receivables, slow-moving inventory, or unfavorable payment terms, that capital requirement reduces the effective purchase price.

Tighten collections. Negotiate better terms with your vendors. Reduce excess inventory. The goal is a working capital position that's efficient and predictable, something a buyer can model without adding a cushion for uncertainty.

Build a Clear Growth Story

Buyers pay for future earnings, not past performance. At 12 months out, you should be able to articulate a credible growth thesis backed by pipeline data, market trends, and operational capacity.

Skip the fantasy slide deck projecting hockey-stick growth. Instead: here's our current revenue, here's our pipeline, here's the market we're pursuing, and here's what it would take to capture the next $1M–$5M in revenue. Show buyers what they're buying into, not just what exists today.

Deloitte's 2026 Global Divestiture Survey, based on responses from 1,500 executives, found that preparation quality continues to be the single largest driver of value in divestitures. The share of sellers meeting or exceeding their valuation targets improved from roughly one-third in 2024 to nearly half by end of 2025, a shift Deloitte attributes directly to more disciplined pre-sale preparation. Sellers who rushed to market consistently received less than their targets.

Prepare a Data Room Framework

Don't wait until a buyer requests documents to start organizing them. Build the data room now.

A standard sell-side data room includes: three years of financial statements, tax returns, customer contracts, vendor agreements, employee agreements, organizational charts, lease agreements, IP documentation, insurance policies, and any regulatory filings. Your M&A advisor will provide a detailed index, but having these documents organized 12 months out means diligence moves quickly when the time comes. Speed protects your leverage.

6 Months Out — Go-to-Market Preparation

At six months, preparation shifts from improving the business to packaging it for sale.

Engage an M&A Advisor

This is the point where most sellers benefit from professional representation. An experienced M&A advisor manages the buyer outreach, structures the competitive process, and protects the seller's negotiating position throughout the deal.

The difference between a represented and unrepresented seller isn't abstract. Represented sellers benefit from a structured process that creates competition among buyers. Competition is the single most effective driver of price and terms. Unrepresented sellers are negotiating against experienced buyers and their advisors, often without understanding market norms for deal structure, earnouts, working capital adjustments, or indemnification.

Finalize the Confidential Information Memorandum

The CIM is your business's marketing document, the full package a buyer reviews before deciding whether to submit an offer. It covers your company's history, financial performance, market position, growth opportunity, and management team.

A strong CIM tells a specific, data-backed story about why your business is worth a buyer's time and capital. A weak one reads like a brochure. Your advisor will typically lead the CIM development, but you should expect to invest real time providing the detail and context that makes it credible.

Build the Buyer and Investor Target List

Not every buyer is the right buyer for your business. Strategic acquirers, private equity firms, independent operators, and family offices all approach acquisitions differently, with distinct valuation frameworks, deal structures, and post-close expectations.

Your advisor should build a targeted list based on your specific business characteristics, deal size, industry, and geographic footprint. The goal is a managed, competitive process with multiple qualified buyers at the table. A single conversation with one buyer gives that buyer all the leverage.

For context on how long the active sale process takes once you're at this stage, Adaptive Capital Partners' guide to sale timelines breaks the deal process into stages, from preparation through close.

The Complete Seller's Pre-Sale Checklist

Use this as a working reference. Not every item applies to every business, but every category should be addressed before going to market.

Financial

• Three years of GAAP or reviewed financial statements
• Normalized EBITDA with defensible add-back schedule
• Monthly financial reports (P&L, balance sheet, cash flow)
• Accounts receivable and payable aging reports
• Debt schedule with terms and covenants
• Tax returns (federal, state, local) for three years

Operational

• Organizational chart with defined roles
• Key employee agreements and non-competes
• Documented standard operating procedures
• Technology and systems inventory
• Customer onboarding and delivery processes

Legal

• Entity formation documents and operating agreements
• All material contracts (customers, vendors, landlords)
• Intellectual property registrations (trademarks, patents, copyrights)
• Insurance policies (general liability, D&O, key person, E&O)
• Regulatory licenses and permits
• Pending or threatened litigation summary

Strategic

• Top 20 customer revenue analysis (concentration, tenure, contract terms)
• Revenue breakdown by type (recurring vs. project-based vs. one-time)
• Pipeline and backlog documentation
• Market analysis and competitive positioning
• Growth roadmap with supporting data

When to Bring in Professional Help

The most common mistake sellers make is waiting until they're ready to sell before seeking advisory support. By that point, the clock is running, and the leverage shifts to the buyer.

An M&A advisor's value starts during the preparation phase, months before the deal. The Exit Planning Institute's value acceleration methodology formalizes this approach: an experienced advisor can identify which value drivers will move your specific multiple, diagnose operational risks that buyers will exploit in diligence, and help you sequence the preparation work so you go to market with the strongest possible position.

Adaptive Capital Partners works with sellers months and sometimes years before a transaction, helping owners understand where they stand, what their business would command in the current market, and what specific changes would improve the outcome when they're ready to go.