YC Interview Questions About Your Burn Rate and Runway

Burn rate and runway questions serve four purposes simultaneously:

1. Financial discipline. Founders who track burn precisely — to the rupee, with a clear breakdown by category — demonstrate the kind of financial discipline that translates into disciplined allocation of YC's investment.

2. Default alive status. YC explicitly values companies that are or could be default alive — generating enough revenue to cover costs before running out of money. Burn and runway questions let partners calculate your default alive status in real time.

3. Burn rate efficiency. Partners compare your burn rate against your traction to assess capital efficiency. A company burning ₹5 lakh/month to generate ₹64,400 MRR is less efficient than a company burning ₹45,000/month for the same revenue. Capital efficiency matters for how long YC's investment will last and what milestones it can reach.

4. Decision-making clarity. How you describe your burn and runway signals how you make financial decisions. "We've been careful about costs because we want to stay default alive" signals intentional financial management. "We haven't really tracked it closely" signals the opposite.

"WHAT IS YOUR MONTHLY BURN RATE?"

What partners probe: The exact number, broken down by category. Not a rounded estimate.

Framework: State the total, then the three largest line items.

"Total burn is ₹45,000/month. Breakdown: two founder salaries at ₹15,000 each, ₹3,000 in hosting and infrastructure, ₹12,000 for a part-time customer support person. No office, no paid advertising."

If you are pre-revenue and burning only founder salaries, say so: "Our only expense is two founder salaries at ₹12,000 each — ₹24,000/month total. We have no other expenses currently."

"HOW MUCH RUNWAY DO YOU HAVE?"

What partners probe: Whether you have calculated this precisely and whether you are tracking it actively.

Framework: State cash balance, monthly burn, and the calculation explicitly.

"We have ₹18 lakh in the bank. At ₹45,000/month burn, that is 40 months of runway before accounting for revenue. With our current revenue of ₹64,400/month exceeding our burn, we are default alive — cash is growing, not shrinking."

If you are burning more than you are earning: "We have ₹6 lakh in the bank. Current net burn — burn minus revenue — is ₹20,000/month. That gives us 30 months of runway at current trajectory."

"ARE YOU DEFAULT ALIVE OR DEFAULT DEAD?"

What partners probe: Whether you know what this term means, whether you have calculated it for your company, and whether you are running your company with this awareness.

Framework: State the answer directly, then prove it with the calculation.

"Default alive. Our monthly revenue is ₹64,400 and our monthly burn is ₹45,000. Revenue exceeds burn and is growing. Even without additional fundraising, we are cash-flow positive and our cash position improves each month."

If you are default dead: "Default dead currently — we burn ₹1.2 lakh/month and bring in ₹64,400. But at our current 22% MoM growth rate, we reach revenue-equals-burn in approximately 4 months. We have 14 months of runway, which is enough time to reach default alive before running out."

"WHAT WOULD YOU DO IF YOU COULDN'T RAISE MONEY AFTER YC?"

What partners probe: Whether you have a plan that does not depend on fundraising, and whether you are building a company or a fundraising story.

Framework: State your specific path to default alive or to sustainability without additional funding.

"We're already default alive — we would keep building. We'd slow hiring, which would compress our timeline to some product goals, but the core business is self-sustaining. We are not building a company that requires external capital to survive — we're building one that uses capital to grow faster than it could otherwise."

If you are currently burning more than you earn: "We have 14 months of runway and we'll reach default alive in approximately 4 months at current growth. If we could not raise post-YC, we'd cut our burn by pausing the two hires we were planning and extend our runway to 24 months. The company survives — it just grows slower."

"WHAT ARE YOU SPENDING MONEY ON RIGHT NOW?"

What partners probe: Whether your spending reflects your actual priorities and whether you have avoided common early-stage spending mistakes.

Framework: State the categories honestly, including anything that partners might consider questionable, and explain the reasoning.

"Two founder salaries — we pay ourselves ₹15,000/month each, which is below what we could earn elsewhere but enough to live without distraction. Hosting and infrastructure — ₹3,000/month for our current user volume. One part-time support person — ₹12,000/month, hired 6 weeks ago when customer support volume exceeded what we could handle while building. No office, no paid marketing, no external contractors currently."

"HOW WILL YOU USE YC'S INVESTMENT?"

What partners probe: Whether your allocation plan is specific, reflects real priorities, and is consistent with the constraints you have just described.

Framework: Name 2-3 specific allocations with percentages and the specific outcome each enables.

"60% — hire one full-stack engineer to build the distributor integration that is our top customer feature request and the largest driver of early churn. 25% — hire one part-time field salesperson in Maharashtra to scale our WhatsApp group outreach beyond what two founders can handle. 15% — infrastructure and tools: upgrade our hosting to handle 200+ customers without performance degradation, add Mixpanel for proper cohort retention tracking."

Avoid generic answers: "hire great people and grow fast." Name the specific role, the specific outcome, and the specific problem it solves.

"WHEN WILL YOU RAISE YOUR SERIES A AND AT WHAT METRICS?"

What partners probe: Whether you have a realistic picture of what Series A investors look for and a clear understanding of the gap between your current metrics and those benchmarks.

Framework: Name the metric target, the timeline to reach it, and the investor type you would target.

"We're targeting a Series A at ₹1 crore MRR — approximately $120K/month — with month-6 net revenue retention above 110%. At our current 20% MoM growth rate, we'll reach that threshold in approximately 12-14 months. At that point we'd target India-focused B2B SaaS funds and US funds with emerging market portfolios. We would not raise before that milestone — we want to optimize valuation and terms from a position of strong metrics, not urgency."

Benchmark ranges for early-stage Indian startups entering YC:

Monthly burn before YC investment:

• Very efficient: under ₹50,000/month (2 founders, minimal infrastructure, no employees)

• Efficient: ₹50,000-₹1.5 lakh/month (2 founders, 1-2 employees, lean infrastructure)

• Moderate: ₹1.5-₹3 lakh/month (growing team, some marketing spend)

• High: above ₹3 lakh/month (larger team, significant infrastructure, or paid acquisition)

Partners do not penalize higher burn if it is generating proportionally higher traction. What they penalize is high burn relative to the traction it has produced — spending ₹3 lakh/month to generate ₹20,000 MRR signals poor capital efficiency.

The default alive calculation in one formula: Current monthly revenue ÷ current monthly burn = default alive ratio. Above 1.0 = default alive. Below 1.0 = default dead. Know your ratio exactly.

The vagueness problem. "We're pretty lean" and "we have enough runway" are not answers. Partners will ask for the specific number. Founders who cannot produce it signal either careless financial management or deliberate vagueness about a number they are uncomfortable sharing. Both are red flags.

The salary omission problem. Many early-stage founders omit their own salaries from their burn calculation, particularly when salaries are low or the founders are living off personal savings. Partners specifically ask about founder salaries. Including them in your stated burn rate is the honest approach. If your salaries are zero or near-zero, say that explicitly: "Neither founder is taking a salary currently — our only expense is ₹3,000/month in hosting."

The revenue-burn conflation. Some founders present their net burn (burn minus revenue) without labeling it clearly. "Our burn is ₹20,000/month" when actual burn is ₹85,000 and revenue is ₹65,000 is technically accurate on a net basis but misleading on a gross basis. State both gross burn and net burn explicitly: "Gross burn is ₹85,000/month. With ₹65,000 in revenue, our net burn is ₹20,000/month."

The runway optimism problem. Some founders calculate runway using projected future revenue rather than current revenue. "We have 24 months of runway if we hit our growth targets" is not the same as "we have 24 months of runway at our current net burn rate." Partners will ask which calculation you are using. Always use current net burn, not projected future net burn, unless you explicitly label the projection.