Runway is not a number on a spreadsheet — it is the amount of time you have to earn the right to raise your next round. Founders who treat runway as a passive output of the P&L run out. Founders who treat runway as an actively managed asset compound.
Runway is months of cash on hand at your current net burn rate, adjusted for known future changes. It is not:
The correct runway number is a 12-month forward view updated monthly with three scenarios: base, downside, and stretch.
Raise when you have 12 months of runway remaining. Never let runway fall below 6 months without a signed term sheet. The reasoning:
If you start the process at 6 months of runway, you are negotiating from weakness. Investors can smell it.
The cleanest single metric for capital efficiency is the Burn Multiple:
Every board deck should show your burn multiple. Every operating decision should improve it.
Vendor renegotiation. Every vendor above $2K/month gets a renegotiation call.
Contract compression. Move annual invoices from net-60 to net-15.
Contractor conversion. Move some FTE work to project-based contractors.
Sales-led collections. DSO reductions are cash you already earned.
Non-dilutive capital. Venture debt, R&D credits, revenue-based financing.
If the above levers get you less than 6 months of additional runway, and you still cannot raise at your current metrics, layoffs are the right answer. The rules:
Do it once, do it deep. Two rounds of layoffs destroys culture.
Throw out the 5-year model. Build a 13-month rolling forecast with:
Update it monthly. Present variance-to-plan every board meeting.
Flag any month where runway dropped by more than 1.5x expected.
If runway falls below 9 months, call the board individually — do not wait for the next meeting.
Do freeze non-essential hires with the phrase "post-close start dates."
Even in growth mode, hold 3 months of gross burn in a segregated operating account. Do not touch it. This is your bridge if a term sheet is pulled at the last minute. Founders who skip this reserve are the ones who take dirty bridge notes.
Bridge rounds are not automatically bad — but the rules matter:
Only with clean terms (no ratchets, no full-stack liquidation preferences).
Only with a written plan for the milestone that unlocks the priced round.
Runway management is not finance work — it is CEO work. The founders who survive are not the ones with the biggest rounds, they are the ones who treat every dollar as if it might be the last, right up until the next wire lands.
