How to Prepare a Business for Sale: A 12-Step Guide

The businesses that sell at the best valuations — and with the fewest surprises in diligence — typically started preparing 18-24 months before they launched a sale process. That's not a comfortable timeline for most owners who want to sell, but it's realistic.

The first 6-12 months are about fixing things. The next 6-12 months are about documenting and packaging. The sale process itself (from first outreach to close) typically runs 6-12 months on top of that.

If your books have never been reviewed or audited by a CPA, that's the first thing to fix. Buyers want 3 years of CPA-prepared financials at minimum. No exceptions.

Beyond clean statements, you need a clear Adjusted EBITDA reconciliation: a document that walks from reported net income to your claimed EBITDA, with every add-back explained and defensible. Buyers and their advisors will go line by line.

If any single customer accounts for more than 20-25% of revenue, you have a concentration problem. Buyers treat concentrated revenue as higher risk and either reprice the deal or add earnout structures to protect against customer loss post-close.

Spend the 12-18 months before your process actively working to diversify. Win new accounts, expand existing customers in different segments, or both.

Buyers are buying a business, not a person. If the business can't function without the owner making key decisions, buyers will either discount the price or structure the deal to require a long transition period.

The fix: hire and promote people into the roles you currently fill. Give them real authority. Document the fact that decisions get made without you.

Process documentation does two things: it demonstrates to buyers that the business is transferable, and it actually makes the transition smoother post-close.

You don't need a 200-page operations manual. You need documented processes for the critical functions — sales, delivery, finance, and key customer relationships.

Check that all intellectual property is formally owned by the company (not the founder). Make sure key employees have signed agreements. Resolve any pending disputes or informal arrangements before you start talking to buyers.

Buyers find everything in diligence. It's always better to disclose and resolve issues proactively than to have them surface at the 11th hour.

For deals under $50M, a boutique M&A advisor or experienced business broker is typically the right choice. For deals above $50M, an investment bank becomes more relevant.

The right advisor knows your industry, has a network of relevant buyers, and has closed deals of similar size. References from past clients matter more than pitch deck claims.