Personal burn, business burn and the amount that creates decision freedom.
Runway is the number that converts leaving your job from a feeling into a decision. Most people guess it, guess low, and leave at the wrong time.
The calculation
Personal burn: rent or its monthly equivalent, food, transport, data, family obligations, health, and the irregular costs you forget — car repairs, occasions, black-tax months. Add fifteen percent for the ones you did not list.
Business burn: tools, subscriptions, data, transport to clients, any help you pay for.
Add both. Multiply by six. That is your floor.
Subtract confirmed recurring revenue that will continue after you leave. Not hoped-for revenue — signed.
The remainder is what must be in the bank before you resign.
Recalculate monthly. The number moves as your recurring revenue grows, and watching it move is the most motivating dashboard you will ever build.
Turn this into your next move.
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