A forecast that can't survive a hard question isn't a forecast. It's a slide.
Most cash flow forecasts exist to be presented once, nodded at, and filed. They're built from last year's numbers rolled forward, with growth assumptions that were true in the sales deck and nowhere else. The moment a board member asks "what happens if that customer pays thirty days late," the model breaks, because it was never built to answer that question.
A forecast a board can trust is built differently. It starts from the drivers that actually move cash (collection days, supplier terms, the timing of payroll and tax, not just revenue and cost lines), and it's rebuilt often enough that the numbers on the page match what's actually happening in the business. When it's wrong, everyone in the room knows why, because the assumptions were visible from the start.
The test isn't accuracy. It's whether it changes a decision.
No forecast is ever exactly right. The useful ones aren't judged on precision, they're judged on whether they change what the business does next: whether a board sees a cash gap coming in twelve weeks and acts on it in week two, instead of finding out in week eleven. A finance function that only reports what happened is a cost. One that shows what's coming, early enough to act on it, is an asset.
This is the gap Build exists to close: the systems, controls, and reporting foundations that turn a spreadsheet one person understands into a model the whole board can interrogate. Not more detail. Better questions, answered before anyone has to ask them.
Getting started is simple
