Preparing a business for sale is not something that starts when you decide to call an M&A advisor.

Some of the changes that matter most to buyers take a year or two to show results. Reducing customer concentration takes time. Building a management team takes time. Moving important relationships away from the owner takes time.

Other improvements can happen much faster. Financial reporting can be cleaned up in a matter of months, and documents can be organized closer to the start of a sale process.

The important part is knowing what to work on first. If you are considering a sale in the next two years, the highest-impact changes are usually the ones that need enough history for a buyer to believe they will last.

24 Months Before a Sale: Focus on the Business

Two years before a potential sale, focus on the parts of the business that cannot be changed quickly.

Customer concentration is a good place to start. If one customer represents a third of revenue, reducing that exposure means winning enough new business to make the customer a smaller percentage of the total. That can take several sales cycles.

If concentration cannot realistically be reduced, the relationship itself may be strengthened. A large customer under a multi-year agreement, supported by a broader team, presents a different risk to a buyer than the same customer purchasing annually with a relationship that depends entirely on the owner.

Management depth is another long-term project.

A buyer will want to understand what happens to the company after the owner leaves. Hiring a general manager shortly before a sale does not answer that question. A management team that has already run the business successfully for a year or two does.

The same applies to owner dependence more broadly.

Ask yourself what would happen if you were unavailable for three months. Which customer relationships would be affected? Who would make pricing decisions? Who would handle important suppliers? Which approvals still require you personally?

If too much of the business depends on the owner, responsibilities and relationships need to move gradually to other people in the company. Buyers will want to see that the transition works in practice, not just on an organization chart.

This is also a good time to address issues that may require a longer lead time. That could include renegotiating a related-party lease onto market terms, resolving ownership questions, cleaning up corporate records, or getting tax advice on how a future transaction might be structured.

These issues are usually easier to address before a sale process begins.

12 Months Before a Sale: Get the Financials Ready

About a year before going to market, the financial record becomes a priority.

Buyers need financial statements they can verify and reconcile to tax returns, bank records, and underlying accounting data. Consistency matters. So does having a reliable monthly close and balance sheet accounts that are actually reconciled.

If personal or discretionary expenses run through the business, they should also be clearly identifiable rather than mixed into operating expenses without explanation.

This is also the time to start documenting EBITDA adjustments properly.

If an expense will eventually be presented as an add-back, keep the supporting documentation when the expense occurs. Buyers and their accountants will want to understand what the adjustment was, why it should not be considered part of ongoing earnings, and where it appears in the general ledger.

It is much easier to build that record throughout the year than to reconstruct it during diligence.

Working capital should also be reviewed well before a transaction.

Many deals include a working capital target based on the company’s historical operating needs. Improving collections, inventory management, or other working capital practices well before a sale gives those improvements time to become part of the company’s normal financial performance.

The growth story needs evidence as well.

If your valuation depends partly on future growth, buyers will want more than a forecast. Backlog, historical win rates, signed contracts, pipeline data, and available capacity can all help demonstrate why the projected earnings are achievable.

Three to Six Months Before a Sale: Prepare for Buyer Scrutiny

At this point, the focus shifts from improving the business to making sure a buyer can evaluate it efficiently.

Start assembling the documents that will eventually go into the data room.

That includes signed customer and supplier contracts, leases, permits, licenses, certifications, employment agreements, contractor arrangements, intellectual property documentation, and current ownership records.

Do not assume a document exists because everyone remembers signing it. This stage often reveals agreements that were never executed, expired licenses, missing amendments, or ownership arrangements that were discussed but never formally documented.

Potential liabilities should be identified as well.

Depending on the company, that might include sales tax exposure, contractor classification issues, accrued vacation, warranty obligations, deferred maintenance, or other items that could become a diligence question.

Finding these issues before a buyer does gives you time to understand them, quantify them, and decide how they should be addressed.

Employee retention also becomes more important as the transaction approaches. If certain managers or employees are critical to the business after closing, consider what will keep them engaged through a sale and transition.

Those arrangements are much easier to plan before employees become aware that a transaction may be coming.

Why the Order Matters

A company can have an organized data room and still be poorly prepared for a sale.

If customer concentration remains high, the business depends heavily on the owner, or the management team is not ready to operate independently, excellent documentation will not make those issues disappear.

The difference is time.

Contracts can be collected in a few months. Financial reporting can often be improved within a year. But reducing customer concentration or demonstrating that a management team can run the company without the owner may require several years of operating history.

That is why starting early matters.

With two or three years, you can address both the structural issues and the financial preparation. With one year, you can still make meaningful improvements to reporting, documentation, and transaction readiness. With six months, the priority is usually to make sure the information is accurate, the major risks are understood, and the company is ready for diligence.

Trying to make several major structural changes immediately before a sale can create new questions rather than solve them. Buyers want to see that improvements are established and sustainable.

Where to Start

If you are two years or more from a potential sale, start with the issues that require time: customer concentration, management depth, owner dependence, recurring revenue, and other factors that affect how buyers view the durability of earnings.

As the transaction gets closer, shift the focus toward financial reporting, EBITDA adjustments, working capital, documentation, and diligence preparation.

The goal is not simply to have a clean data room.

It is to enter the market with a business that buyers can understand, verify, and feel confident owning after you leave.