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Financial projections people actually believe

BY VIENTIA ADVISORY · LAST CHECKED 1 SEP 2026 · 6 MIN READ

Before you read: every business is different, and this article explains general method, not advice for your case. For a number or a plan you can act on, message us - real answer within 48 hours.
THE SHORT ANSWER

Believable projections are built from drivers, not drawn from hope: customers x price x frequency, each one defensible. Three years, year one monthly, plus the downside case that proves you survive being wrong.

Two ways to build the same forecast

The hockey stick

  • "Revenue grows 20% monthly"
  • No mechanism, just a slope
  • Read as fantasy by every lender and investor

Driver-based

  • Customers x price x frequency
  • Each driver has a source or a test
  • Wrong later, maybe, but honest now

The drivers that matter

Volume: how many customers, from where, growing why. Price: what you charge and what discounting really does to it. Frequency: how often they return, because retention is cheaper than acquisition everywhere on earth. Costs in two piles: those that scale with sales and those that arrive every month regardless. The second pile is what kills.

ONE FORECAST, THREE CASES - ILLUSTRATIVE YEAR-3 REVENUE
Downside: still alive?
$220k
Base: what you believe
$320k
Upside: what you argue
$400k

Illustrative. The downside case is the credibility engine: it shows you have met reality before.

The test every projection must pass

Someone points at any cell and asks "why this number?" and you have an answer that is not "it felt right". That is the whole game. A projection is not a promise about the future; it is proof of how you think.

Common questions

What makes financial projections believable?

Drivers, not wishes: customers times price times frequency, with each driver defensible. And a downside case that shows you survive being wrong.

How many years should projections cover?

Three years, with year one monthly. Beyond that, precision is theatre; show direction instead.

Should projections be optimistic or conservative?

Neither: they should be explainable. Present a base case you believe, an upside you can argue, and a downside you can survive.

Need numbers that stand up?

Driver-based projections for plans, loans and investors. Free scoping call.

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