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What is a cash flow forecast and why do you need it?

Cash flow forecast: why every SME should be doing this

Your business is running well: strong revenue, a full order book… And yet the account is in the red at the end of the month. How is that possible?

Revenue, profit and cash: not the same thing

This is the most underestimated distinction in SME accounting.

A concrete example:

You sell €200,000 worth of products. After deducting your costs, you land on €40,000 in profit. Great month! But your customers pay in 60 days. Your suppliers want payment in 30. Payroll keeps running. Rent on your premises has to be paid upfront.

Result: on paper you have €40,000 in profit. In your bank account: almost nothing.

Profit is what remains after all costs — but that's an accounting figure. Cash is what's actually in your account. And only the latter lets you pay your invoices... buy your next round of stock... and make that much-needed investment to grow.

A business can be profitable and still go bankrupt. Sounds absurd, but it happens more often than you think — and almost always due to a lack of cash planning.

Why do so many SMEs have no cash flow forecast?

Simple: because it "sounds too complex."

Most business owners picture Excel models with dozens of tabs, financial jargon, scenario analyses. And so they drop it.

But a cash flow forecast is really just this: an overview of how much cash is coming in and going out over the coming months. What comes in, what goes out, and what's left over?

A simple table in Excel is enough. Truly.

What does a cash flow forecast actually give you?

Two things. And the difference between the two is bigger than you might think.

1. Survival: you see in advance when things are going to get tight

Without a forecast, you only discover there's a problem when it's already too late. With a forecast, you see it weeks or months ahead and can still act.

Example: A construction company has a busy summer but a quiet winter. Payroll and fixed costs run all year round. Without cash planning, the owner only realises there's a problem in January. With a forecast, he knows in September and builds up a buffer in time — or arranges a credit line in advance.

The same applies to seasonal businesses like hospitality, landscaping, or tourism. The timing of your cash is everything.

2. Growth: you know whether you can afford that investment before you make it

Growth eats cash. You hire people, buy stock, take on bigger orders — all before the money from those extra sales comes in.

Example: An online shop doubles its revenue during the holiday season. To do that, it needs to purchase €80,000 worth of stock in October. Without cash planning, it hits a wall in November — right when it needs cash the most.

The same goes for any investment: a new machine, an extra vehicle, a renovation. With a forecast, you can see exactly what it means for your account over the next 6 months. No more gut feeling — a well-founded decision.

Who is this useful for?

For any business owner who doesn't like surprises. But concretely, it's essential when:

  • You're growing fast and working capital risks becoming a bottleneck

  • You're considering an investment

  • Your business is seasonal

  • You want to apply for a bank loan (a bank always asks about your cash flow)

  • You simply want to sleep better at night

It's a tool that helps you steer proactively instead of reacting after the fact.

Conclusion: start simple

You don't need to be a CFO to do this. Start with an overview of the next 3 months: expected income, fixed expenses, variable costs. Update it monthly.

That's enough to avoid the biggest pitfalls and run your business on facts rather than gut feeling.

Because when the invoices need to be paid, your profit doesn't matter. What counts is what's in your account.

Curious what this means concretely for your business? We'd be happy to schedule a no-obligation conversation to explore the opportunities together.