Cash flow forecast calculator

Inputs and method

• Enter starting cash, monthly revenue, monthly expenses, and one-time costs.
• Revenue grows each month by the entered percentage while expenses remain flat.
• Each month’s ending cash equals prior cash plus revenue minus expenses and any month-one cost. The horizon is bounded to 36 months.

Worked example

Starting with $150,000, $30,000 monthly revenue, $42,000 monthly expenses, and a $10,000 one-time cost creates a visible month-one step-down before revenue growth changes the later cash curve.

Planning estimate caveat

This is a scenario, not a cash accounting forecast. Collections timing, taxes, working capital, debt, fundraising, and seasonality are not included.