Profit is not cash

Here is a sentence that sounds impossible and bankrupts real businesses: you can be profitable and run out of money. Profit and cash are both "money math," but they live on different calendars — profit counts what a job EARNED, cash counts what has actually ARRIVED.

One job, two stories

Take the $1,250 job with $1,000 of costs — a solid $250 profit, 20% margin. On paper, done. Now put it on a calendar:

• Week 1: buy materials — $400 leaves.
• Weeks 2–3: pay for labor — $600 leaves. You're at −$1,000.
• Week 4: finish, invoice $1,250… and the invoice says net 30.
• Week 8: the check clears. +$1,250. NOW you're at +$250.

The job was profitable from the day you priced it. The bank account disagreed for six weeks. During those six weeks the profit existed only as a promise — and promises don't pay the rent from lesson 2, which came due twice in the meantime.

Why this kills growing businesses first

The trap sharpens with success. Land three of these jobs at once and you're −$3,000 for a month and a half — the reward for selling well. Growth eats cash before it returns cash: every new job demands its costs up front and pays you back later. A business can literally grow itself to death, profitable the entire way down. Accountants call the gap working capital; module 3 calls it the job you have to finance.

Keep two ledgers in your head

• Profit answers: is this job worth doing? Is the business viable this year? (Modules 1–2 were all profit questions.)
• Cash answers: can I pay for THIS month while the profit is in transit? What's the most negative week ahead?

You need a yes from both. A no on profit means stop selling that job. A no on cash means the job is fine but the CALENDAR is wrong — and calendars can be renegotiated. That's the next lesson: deposits and progress billing, or how to make the client's money fund the client's job.