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Knowledge / Business & Entrepreneurship

Startup Finance and Runway

Cash management, burn rate, runway, gross margin, working capital, and financial decision-making.

By Siddhant Krishna · Published 2026-10-06 · Updated 2026-10-06

01

Burn Rate

net burn = cash outflows − cash inflows

02

Runway

runway ≈ cash balance / average monthly net burn

Runway is only an approximation because burn changes with hiring, growth, inventory, receivables, capital expenditure, and financing.

03

Capital Allocation

  • Product development.
  • Hiring.
  • Customer acquisition.
  • Infrastructure.
  • Inventory.
  • Research.
  • Regulatory work.
  • Contingency.

References

  1. Y Combinator's public library of startup advice, lectures, essays, fundraising resources, and founder education.
    https://www.ycombinator.com/library/

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