Break-Even
Break-even is the point where total revenue exactly equals total costs --- below it, you bleed; above it, you accumulate. It is the viability threshold of any venture.
What is it?
The break-even point answers the most fundamental question in business: how much do I need to sell before I stop losing money?1
Break-even units = Fixed costs / (Price per unit − Variable cost per unit)
If your fixed costs are CHF 5,000/month, you charge CHF 200/session, and each session costs CHF 50 to deliver, your break-even is: 5,000 / (200 − 50) = 33.3 sessions/month. Sell 34 and you profit. Sell 30 and you lose CHF 500.
The formula reveals why cost-structure matters so much. High fixed costs push the break-even point higher --- you need more revenue before profitability begins. But once you cross break-even, every additional sale contributes its full margin to profit (operating leverage).
In plain terms
Break-even is the waterline. Below it, the ship is sinking. Above it, the ship floats and every additional wave pushes it higher. Knowing where the waterline sits is the first thing any captain needs to know.
How does it work?
Break-even for different models
| Venture | Fixed costs | Price | Variable cost | Break-even |
|---|---|---|---|---|
| Workshop (20 seats) | CHF 400/event | CHF 50/seat | CHF 5/seat | 9 seats |
| Training (15 slots) | CHF 2,000/programme | CHF 2,000/person | CHF 200/person | 1.1 people |
| Platform (digital) | CHF 3,000/month | CHF 20/month/user | CHF 0.50/user | 154 users |
Each model has a different break-even profile. The workshop breaks even easily (9 seats in a 20-seat room) but has a hard ceiling. The platform requires 154 users to break even but has no ceiling.
Time to break-even
For new ventures, the question is not just whether you break even but when. The months between launch and break-even are funded by your entrepreneurial-runway. If break-even takes 8 months and you have 12 months of runway, you have 4 months of buffer. If break-even takes 14 months, you are in trouble at month 12.
Personal break-even
The concept applies to your personal finances too. Your personal break-even is the income level that exactly covers your expenses --- a savings rate of 0%. Everything above is surplus that builds equity. Everything below is a deficit that erodes it.
Check your understanding
Five questions (click to expand)
- Calculate the break-even point for a service you could offer. What are your fixed costs, price, and variable costs?
- Explain why high fixed costs make break-even harder to reach but more rewarding once crossed.
- Connect break-even to entrepreneurial-runway. How does knowing your break-even timeline inform how much runway you need?
- Compare break-even for a consulting practice (high variable costs) vs a digital product (high fixed costs). Which is easier to reach and which is more profitable at scale?
- Apply the personal break-even concept. What is your monthly income break-even? How far above it are you?
Where this concept fits
Where this concept fits
graph TD CS[Cost Structure] --> BE[Break-Even] RM[Revenue Model] --> BE BE --> WC[Working Capital] BE --> ER[Entrepreneurial Runway] style BE fill:#4a9ede,color:#fff
Sources
Footnotes
-
Brealey, R. A., Myers, S. C., & Allen, F. (2020). Principles of Corporate Finance. Chapter 9 on break-even analysis and operating leverage. ↩