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theory1 min readLesson 7.1

Why founders need to understand finance

Finance — Read the Numbers · 15 min

Finance literacy is the #1 skill gap for technical founders. Understanding P&L, cash flow, and balance sheet isn't optional — it's survival. The companies that fail most often aren't the ones with bad products, they're the ones that run out of cash because founders didn't understand the numbers.

82% of startups fail due to cash flow problems. Not product problems. Not market problems. Cash flow.

The 3 Financial Statements:

  • Income Statement (P&L): Revenue - Costs = Profit/Loss over a period
  • Balance Sheet: Assets = Liabilities + Equity at a point in time
  • Cash Flow Statement: Where cash came from and went over a period

Key Takeaways

  • 82% of startups fail from cash flow problems.
  • Profitability ≠ cash flow. Timing of payments matters.
  • The 3 statements are interconnected — learn all three.
  • Burn rate and runway are your survival metrics.

Frequently Asked Questions

Why is cash flow more important than profitability for startups?

Answer: You can be profitable on paper but still run out of cash (timing of payments)

Revenue recognition (P&L) and cash receipt are different. You might invoice €100K but not receive payment for 90 days. Meanwhile, salaries are due monthly.

What does "burn rate" measure?

Answer: How fast you're spending cash (net monthly cash outflow)

Burn rate = net cash spent per month. Runway = Cash / Burn Rate = months of survival.

A company with €500K cash and €50K/month burn rate has how many months of runway?

Answer: 10 months

€500K / €50K per month = 10 months. You should start fundraising when you have 6+ months of runway.