Selling Your Business: How to Get Your Finances in Order

You built this business. Maybe over twenty years, maybe over thirty. You know every customer, every supplier, every blip in your cashflow. In your head, it all makes sense. But now you're thinking about stepping away, and suddenly an uncomfortable question surfaces: would an outsider actually understand how this place works? Around 532,000 mid-sized businesses in Germany are facing exactly this situation, with succession plans needed by the end of 2028. These aren't abstract statistics. They represent a concrete timeline for hundreds of thousands of business owners who are beginning to realise that the biggest challenge in selling a business isn't finding a buyer. It's making your business readable from the outside. Your annual accounts are neatly filed, but what do they actually say about the future of your business? And is that enough to negotiate from a position of strength?

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What buyers really want to see in due diligence

The three questions every buyer asks

Every buyer, whether a family member, an external investor, or an employee, is ultimately asking the same three questions: where does the money come from, where does it go, and will that still hold true tomorrow? The first question is answered by your profit and loss statement for the last three years. The second is shown by your cashflow picture, meaning how liquid your business actually is. The third, though, is the critical one, and it's where most sellers fall short. It demands a credible forward view: a documented plan that shows the business model hasn't just worked in the past but will continue to work going forward. Without answers to all three, any valuation remains speculative, and speculation drives the price down. A prospective buyer doesn't want to guess. They want to understand, without having to ask you about every other sentence.

What DATEV delivers and what it doesn't

Your accountant gives you clean annual accounts every year. DATEV does its job: bookkeeping, tax returns, historical figures. The problem isn't the quality of that data. It's what that data is designed to do. Annual accounts document the past for the tax authorities, not the future for a buyer. They show what happened, not what will happen. They're a snapshot, not a story. And that's precisely where the gap emerges that becomes a problem in due diligence: the raw data is there, but the layer above it is missing. There's no structured financial planning, no scenarios, no answer to what happens if the market shifts or a key customer walks out. An external buyer doesn't just need numbers. They need context, and DATEV doesn't supply that automatically.

"My accountant gives me annual accounts every year, but what a potential buyer is supposed to do with them — that wasn't in there." — Business owner, service company

The founder knowledge problem

When the most important numbers only live in the owner's head

You know exactly why revenue always dips in the third quarter. You know that the large outstanding receivable from Client X isn't a risk, because they've paid on time for fifteen years. You know that the investment in the new machine paid for itself within eighteen months, even if that's not reflected in any forecast. This knowledge is valuable, but it's implicit. It lives in your head, not in your documents. To you it's obvious; to a buyer it's invisible. And what's invisible doesn't get rewarded in a valuation — in fact, it becomes a risk factor. When someone buys a business, they're not just buying revenue and assets. They're buying predictability. When the key connections aren't documented, a large question mark remains.

Why implicit knowledge becomes a valuation risk

A buyer isn't just valuing your business. They're valuing the risk they're taking on. Every unanswered question, every missing document, every gap in the planning increases that risk, and risk costs money. If your understanding of customer relationships, margins, seasonality, or supplier dependencies isn't visible in structured data, a buyer has to assume that knowledge disappears when you do. That's not bad faith. That's rational caution. A business that only its founder fully understands is harder to run, harder to plan, and therefore worth less. Your expertise becomes a red flag if it can't be transferred. The solution isn't to know less. It's to document more.

Clean finances as a negotiating lever

How a documented 3-year plan changes your starting position

Picture two scenarios. In the first, you hand a potential buyer your latest annual accounts and a rough Excel spreadsheet with estimated revenue figures. In the second, you present a clean P&L covering the last three years, a coherent cashflow model, and a documented 3-year plan with realistic assumptions, scenarios, and a clear growth strategy. In which scenario do you negotiate better? The answer is obvious. A structured financial plan isn't a bureaucratic luxury. It's a valuation lever. It shows that you haven't just run your business well, but that you understand how it works and where it can go. It reduces uncertainty, and reduced uncertainty means a higher price. Walk into a negotiation with a solid plan and you hold the stronger hand.

The difference between annual accounts and a business story

Annual accounts are a snapshot. They tell you where you stood on 31 December. A business story tells you how you got there and where things are heading. It shows trends rather than point-in-time values. It explains why your EBITDA dipped last year, even though you were making the right strategic investments. It makes visible which customers are growing, which products carry margin, and where the real growth opportunities lie. That's the story a buyer wants to hear, and they want to see it in numbers, not in verbal explanations. The difference between a business that hands over a set of accounts and one that can tell its own financial story is often worth several times annual revenue in the final valuation. Your numbers need to work for you, not against you.

The clock is ticking: what to do now

How long it takes to build a planning structure

The good news is that you're not starting from scratch. Most of the data you need already exists in your bookkeeping, in DATEV, in your sales reports. What's missing is the structure, the planning layer, and the legibility for outside eyes. Getting your finances properly prepared, from historical figures through to a solid 3-year plan, isn't a matter of weeks, but it's not years either. With the right approach, you can build a foundation in six to twelve months that genuinely holds up in negotiations. Timing matters: if you want to sell in two years, start today. Anyone who begins preparing three months before the first buyer conversation is negotiating under time pressure, and time pressure is the worst possible negotiating partner.

What you can start today, without being a finance expert

You don't need to be a controller to take the first step. Start by answering the questions a buyer would ask: which customers actually drive revenue, and which ones bring margin? What does your cashflow look like across the year, and where are the pinch points? What investments are coming up, and what will they deliver? Write these things down, not for the tax authorities, but for someone who wants to understand your business without being able to ask you every day. Use the data you already have and put it into a form that's readable without your implicit knowledge. This isn't a technical task. It's a strategic one. And it doesn't start with software. It starts with a single question: what would I want to see if I were looking at my own business from the outside?

2028 might sound like a long way off, but there are only a few years left. The succession wave is already building, and those who start preparing now will negotiate from a position of strength. Those who wait until the buyer is in the room will negotiate under pressure. The difference between the two scenarios isn't the size of your business or the sector you're in. It's the clarity of your numbers. Your business is worth more than your last annual accounts suggest. But that value has to be visible: documented, traceable, and readable by someone who hasn't spent twenty years working alongside you. The time to prepare your finances for a business sale is now. Not eventually, not when a buyer gets in touch, but today.

FAQs

What documents do I need for a business succession?

A successful succession takes far more than your most recent annual accounts. A prospective buyer will expect a clean profit and loss statement covering the last three years, a balance sheet that's easy to follow, a cashflow statement showing how liquid your business really is, and above all, a credible forward plan. This means a documented 3-year plan with realistic assumptions, an overview of key customer relationships and supplier contracts, and a clear picture of your investment plans. The more structured and accessible these documents are, the fewer questions remain open and the more confidence a buyer has in your valuation.

How long does proper preparation for a business sale take?

A solid preparation process typically takes between six and twelve months, assuming the underlying data is already in place. In that time, you put your historical figures into a readable format, build a coherent forward plan, and document the key dynamics that currently only exist in your head. Starting earlier gives you more room to adjust and to test whether your numbers genuinely tell the story they're supposed to. The biggest mistake is leaving it until three months before the planned sale, because by then you're negotiating under pressure rather than from a position of strength.

What's the difference between annual accounts and a financial plan for buyers?

Annual accounts document the past for tax purposes. They show what was happening in your business on 31 December. A financial plan for buyers tells a story: not just where you've been, but where you're going. It surfaces trends, explains fluctuations, models scenarios, and gives a clear answer to how the business will develop over the next three years. Where annual accounts look backward and are fixed in time, a financial plan is forward-looking and strategic. Buyers aren't purchasing your past. They're purchasing your future, and that's exactly what needs to be documented.

Can my accountant prepare the succession finances for me?

Your accountant is an essential foundation for any succession preparation. They provide clean annual accounts, maintain accurate bookkeeping, and depending on their specialism, may also be able to support the valuation or tax structuring of the handover. What many standard accountancy engagements don't cover, though, is the buyer-facing preparation: a plan that models different scenarios, a cashflow forecast for the next three years, and a presentation that external investors can follow without needing to ask follow-up questions. Have an honest conversation with your accountant about what they can deliver in this area, and where additional support might be worth considering.