Entrepreneurial Runway
Runway is the number of months you can sustain your life with no income --- the most important number for anyone transitioning from employment to independence.
What is it?
Runway is the simplest metric in entrepreneurial finance:
Runway (months) = Liquid savings / Monthly expenses
If you spend CHF 4,500/month and have CHF 27,000 in accessible savings, you have 6 months of runway. That is 6 months to build, test, find clients, or pivot without financial pressure dictating your decisions.
Runway is distinct from financial-independence (which is permanent) and from an emergency fund (which covers unexpected costs). Runway is intentional freedom --- money set aside specifically to buy time for building something. In the cash-flow-architecture, it lives in the freedom bucket, separate from safety and growth.
The concept connects to liquidity: runway must be in liquid form. Money locked in a pension or tied up in illiquid assets does not count as runway, no matter its value. And it connects to profit-vs-cash-flow: your venture may be profitable on paper (contracts signed, revenue recognised) but cash-negative (clients have not paid). Runway covers the gap.
In plain terms
Runway is time you can buy. Each month of runway is a month where you can say no to bad opportunities, yes to uncertain ones, and keep building without the survival instinct overriding your strategy.
How does it work?
1. How much do you need?
| Runway | What it allows |
|---|---|
| 3 months | Emergency buffer only --- not enough for a transition |
| 6 months | Tight. Viable if clients are lined up before you leave |
| 12 months | Comfortable. Time to build, iterate, and course-correct |
| 18-24 months | Ideal for a venture launch with no guaranteed income |
The right number depends on your risk tolerance, your fixed costs, and how quickly your venture can generate revenue. Consulting and freelancing (revenue can start within weeks) require less runway than product businesses (months or years before first sale).
2. Bridge income
The smartest transition is not a cliff --- it is a bridge. Bridge income means maintaining some paid work while building your venture, so you consume runway more slowly.
Options: part-time employment, consulting on your existing expertise, workshops and speaking, freelance projects. Each franc of bridge income extends your runway by reducing the monthly burn.
Extended runway = (Freedom bucket + Bridge income × remaining months) / Monthly expenses
3. The Swiss Pillar 2 option
When you register as self-employed in Switzerland (indépendant status with your cantonal AVS office), you can withdraw your Pillar 2 pension capital within one year.1 This can be a substantial lump sum that extends your runway significantly.
The trade-off: you are spending your retirement savings now. This is rational only if you genuinely believe that investing the capital in your own venture will generate a return exceeding what the pension fund would have earned. The tax treatment is favourable (reduced rate) but not free.
4. When to leap
There is no formula, but four signals converge:
- Revenue signal. The venture has earned money --- even small amounts. Market demand is confirmed.
- Pipeline signal. Active conversations or commitments suggesting income within 2-3 months.
- Runway signal. 12+ months of runway, including bridge income.
- Cost signal. Staying employed is actively costing you --- time, energy, or missed venture opportunities.
When signals 1-3 are present and signal 4 is growing, the leap is rational. Not safe --- rational. The difference matters.
Why do we use it?
Key reasons
1. Decision quality. Financial pressure makes you take bad deals, underprice your work, and abandon promising directions too early. Runway removes the pressure. 2. Measurability. One number (months), updated quarterly. It makes the abstract question “can I afford to do this?” concrete. 3. Strategic timing. Runway lets you choose when to leap instead of being pushed by circumstances (layoff, burnout, opportunity missed).
Check your understanding
Five questions (click to expand)
- Calculate your current runway. Monthly expenses divided into liquid savings. How many months do you have?
- Explain why runway must be liquid. Why does CHF 100,000 in a pension fund not count?
- Design a bridge income strategy for your specific skills. What could you do part-time that generates income while building your venture?
- Evaluate the Pillar 2 withdrawal option. Under what circumstances is it rational and when is it reckless?
- Apply the four signals framework. Where do you stand on each signal right now? What would need to change before the leap is rational?
Where this concept fits
Where this concept fits
graph TD FI[Financial Independence] --> ER[Entrepreneurial Runway] LQ[Liquidity] --> ER CFA[Cash Flow Architecture] -.-> ER ER --> WC[Working Capital] style ER fill:#4a9ede,color:#fff
- Prerequisites: financial-independence, liquidity
- Leads to: working-capital (the business equivalent of runway)
Sources
Footnotes
-
Swiss Federal Law on Occupational Pensions (LPP/BVG), Art. 5. Withdrawal conditions for self-employment. See also ch.ch/en/work/self-employment/ for the registration process. ↩