What Buyers Really Examine: Due Diligence

Seller-side due diligence means examining your own company the way a buyer will: finances, legal, operations and tax, before negotiations begin. Owners who run this review early find the weak points first and decide how to address them. Owners who wait let the buyer find the same points, and pay for each one at the negotiating table.

Due diligence sounds like a technical formality, a matter of checklists and folders. In truth it is something far more personal: a thorough examination of every assumption you have ever made about your company, carried out by someone who believes nothing until they have seen it proven. Owners who grasp this prepare differently. And those who prepare keep control of a process that can otherwise turn into an interrogation.

What due diligence really means

Due diligence is not a formality at the end of the negotiation. It is the moment of truth. The buyer checks whether the company really is what it claims to be, and looks (not necessarily in bad faith) for reasons to lower the price. That is part of their job. The review usually begins once a letter of intent has been signed and the exclusivity period is running, which means time now works for the buyer. Every open question, every inconsistency, every contradiction between your story and the evidence becomes an argument at the negotiating table.

Owners who enter this phase unprepared lose three things at once: negotiating power, because every surprise gets priced as a risk; time, because unresolved points drag the process out; and trust, which is hard to win back after the first uncomfortable finding. A handover rarely fails because of one big scandal. It crumbles under an accumulation of small things that no one put in order beforehand.

The four major review areas

A serious review looks at your company from four angles that complement one another. How deep it goes depends on the route you have chosen (the paths compared in third-party sale, family transfer or MBO); external buyers usually probe hardest.

• Financial due diligence. This is about economic reality, not polished annual accounts. It examines revenue development, the quality of the margin, working capital, the debt structure and normalised EBIT. Buyers want to understand what the company really earns once one-off effects and engineered cut-off dates are stripped out.
• Legal due diligence. Contracts, licences, obligations, ongoing disputes and the ownership structure are put on the table. A single unresolved legal point, an unclear shareholding or an open court case can delay a transaction by months.
• Operational due diligence. Does the business run without the owner? Are the processes documented? Who are the key people, and how dependent is the company on individual customers or suppliers? This is where it becomes clear whether you are selling an organisation or a job that happens to come with a company attached. Reducing owner dependency is therefore preparation work in its own right.
• Tax due diligence. Historical tax positions, latent risks and the consequences of earlier restructurings are examined. This area is often underestimated, and it is precisely here that risks hide which surface late and expensively.

This is general orientation, not tax or legal advice for your individual case. For your specific situation, bring in a licensed Swiss tax or legal expert.

What you should prepare

The central tool is a data room, physical or digital, in which the buyer finds, neatly arranged, everything they will ask for anyway. Ideally it contains:

• the financial figures of the last three years, clean and traceable;
• all material contracts, from customers and suppliers through to financing;
• the organisational structure and an overview of the workforce;
• the situation regarding properties and leases;
• details on intellectual property and IT.

A well kept data room says more about a company's maturity than any presentation. Order is itself a selling point.

The effort of assembling these documents in advance feels tedious. Yet every point you do not have to hunt for under pressure at the last moment is a point the other side cannot use against you. The Swiss SME portal of the federal authorities offers a sober overview of the steps and documents involved in transferring a company.

Preparation as a competitive advantage

The decisive difference is created before the buyer even appears. Owners who have played through their own due diligence from the other side's perspective already know their open points. They know where the weak margin comes from, which contract is not yet signed and which relationship hangs on their person alone. They have the answers ready, rather than being caught off guard by them.

This preparation reverses the balance of power. Anyone who can name their own bottleneck before someone else finds it leads the process, rather than being at its mercy. The review then becomes not a tribunal but a confirmation of what you are claiming anyway. And it is precisely this quiet confidence that separates a good sale price from a mediocre one.

In the end, every due diligence examines the same fundamental questions that decide whether a company can be transferred: finances, law, operations and tax. If you would like to see where you stand across these areas today, the structured succession diagnosis from TransActum360 places your company across ten dimensions of succession readiness in a single session and delivers a prioritised plan for the next 90 days. You can arrange it on our booking page.