Humble Runway · Estimate
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Starting monthly net burn
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Estimated first-month ending cash
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How to read this: Runway estimates the time until projected cash reaches zero under the entered monthly revenue, expense, and change assumptions. A negative starting net burn signals a projected monthly surplus initially; changes over time may still alter the outcome. It’s a scenario model, not a forecast or guarantee.
Example: If available cash is $150,000 and monthly revenue is $18,000 against $24,000 of expenses, starting net burn is $6,000 per month, so with no monthly changes cash lasts about 25 months. Actual runway depends on timing and whether the assumptions hold.
What to verify next The numbers above are planning estimates built from the amounts you entered. These are checks for you to complete with local quotes, documents, and qualified professionals — they are not advice, verified quotes, or confirmed terms.
Check when cash actually arrives from customers versus when revenue is booked, since timing moves runway. Confirm payment timing on your largest obligations, payroll, rent, and taxes, rather than averaging them. Verify tax payment schedules with an accountant, since estimated taxes hit cash on their own calendar. Note any one-time or seasonal flows, and update the scenario when they are known. Your next step Runway tells you how long; growth tells you what to spend it on. Check Humble Growth, or work through the growth worksheet.
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Planning scenario only. Revenue, costs, and timing can change; this simplified model excludes cash flows not entered, taxes, financing events, seasonality, payment timing, and one-time expenses. A runway estimate is not a viability assessment or financial advice.