Startup Runway and Cash Burn Projection Model

What a good one includes

• A clear opening cash balance that reconciles perfectly with your actual bank accounts to establish an accurate baseline.
• Categorized monthly operating expenses separated into fixed overhead like software subscriptions and variable costs like ad spend.
• A dynamic hiring roadmap that automatically adjusts your monthly burn rate based on target start dates and fully-loaded employee costs.
• Conservative revenue projections broken down by customer acquisition rates, average contract value, and expected payment terms.
• A clear calculation of both gross burn and net burn, translating directly into your exact months of remaining runway.
• Scenario analysis toggles that let you instantly model best-case, expected, and worst-case cash flow pathways.

Common mistakes to avoid

• Overestimating the speed of cash collection by assuming revenue is pocketed the moment a contract is signed rather than factoring in realistic invoice delays.
• Failing to include fully loaded employee costs, which overlooks payroll taxes, benefits, and hardware procurement that add up to twenty percent beyond base salaries.
• Relying on a static spreadsheet that is never updated with actual monthly bank balances, rendering the projection useless within weeks.
• Neglecting to model a zero-revenue or worst-case scenario, which leaves the leadership team unprepared when sales cycles take longer than expected.

Frequently asked questions