Financial projections are where a business case becomes a number. Whether you are raising capital, planning a scale-up or testing a strategy, investors and boards judge not just the figures but the thinking behind them. A polished spreadsheet with magical hockey-stick growth and no logic underneath fools no serious investor. A clearly reasoned, driver-based model — even with modest numbers — earns trust.
This guide explains how to build projections that stand up to scrutiny: the structure, the drivers, the assumptions and the scenarios that turn a forecast into a credible argument.
Key takeaways
- Credible projections are driver-based — built up from the operational levers of the business, not a top-line growth rate.
- Use a connected three-statement model so the P&L, balance sheet and cash flow stay consistent.
- Investors scrutinise assumptions more than outputs — make every key assumption explicit and defensible.
- Show a range, not a point: base, upside and downside scenarios demonstrate you understand the risks.
Start with drivers, not a growth rate
The fastest way to lose credibility is ‘revenue grows 40% a year’ with nothing underneath. Build revenue from its drivers: customers × average revenue, or leads × conversion × price, or capacity × utilisation. A driver-based model does two things a growth rate cannot — it shows how the business grows, and it lets you test what happens when a driver moves. This is the same logic that underpins robust sales forecasting.
Build a connected three-statement model
Serious projections link the three financial statements so they move together:
| Statement | What it projects | Why it matters to investors |
|---|---|---|
| Income statement | Revenue, costs, profit | Is the business model profitable? |
| Balance sheet | Assets, liabilities, equity | Is it solvent and well-capitalised? |
| Cash flow | Cash generated and consumed | When does it run out of money? |
The cash flow statement is the one founders most often neglect and investors most care about — a profitable business can still run out of cash. A connected model means a change in assumptions flows correctly through all three, so the story stays internally consistent. (If you are valuing the business off these projections, they also feed straight into a DCF.)
Make assumptions explicit
Investors stress-test assumptions, not outputs. List every material one — growth drivers, conversion rates, margins, churn, hiring, payment terms — in a dedicated section, with a rationale and a source for each. The message you want to send is: we have thought hard about this, and we will tell you exactly what we believe and why.
Investors don’t buy your forecast. They buy your judgement. The model is just the evidence that your judgement is sound.
Show scenarios, not a single line
A single-point projection signals either naivety or salesmanship. Present a base case you genuinely believe, an upside if things go well, and a downside that shows you have thought about what could go wrong — and that the business survives it. The downside case, counter-intuitively, builds more confidence than the upside: it proves you understand your risks and your runway. Robust scenario planning is what separates a plan from a wish.
A worked example
A B2B scale-up projects year-two revenue. Rather than ‘£5m, up 100%’, the model builds it: 400 new customers (from 8,000 leads at 5% conversion) × £9,000 average contract value, plus £1.4m retained revenue from year one at 90% net retention. The base case lands at £5.0m; the downside (4% conversion, 85% retention) at £4.0m; the upside at £6.1m. Every number traces to a driver an investor can challenge — which is exactly what makes it persuasive.
Build projections investors believe
Metapraxis helps scale-ups and their boards build driver-based, three-statement models and scenarios that withstand investor scrutiny — and double as a real management tool.
Explore our scale-up planning →Frequently asked questions
How many years should financial projections cover?
For most fundraising, three to five years. Early years should be monthly or quarterly and detailed; later years can be annual and higher-level. Beyond five years, projections become illustrative rather than predictive.
What is a three-statement model?
A financial model that links the income statement, balance sheet and cash flow statement so they remain consistent. A change in one — say a sales assumption — flows correctly through all three, which is essential for credible projections.
What do investors look for in projections?
Sound logic and defensible assumptions more than impressive numbers. They want to see driver-based reasoning, internal consistency across the statements, an understanding of cash runway, and scenarios that show you have considered the risks.
Should projections be optimistic or conservative?
Neither — they should be credible. Present a realistic base case with transparent assumptions, bracketed by upside and downside scenarios. Over-optimism destroys trust; false modesty undersells. Defensibility beats both.
