Cash Flow vs Profit

The short version

• Profit = Revenue − Expenses, recorded when earned or incurred.
• Cash flow = Money that actually moves in and out of your bank account.

Why they're different

Most accounting treats a sale as revenue the moment you issue an invoice — even if the customer pays 60 days later. Likewise, you may record an expense before the cash leaves. So profit is what you've earned; cash flow is what you've actually received and paid.

Why it matters for small business

Small businesses fail more often from cash crunches than from unprofitability. A growing business is especially at risk: more sales mean more inventory and unpaid invoices, which means more cash tied up — even while profit on paper looks great.

Practical example

A small consultancy invoices $20,000 for a project in January but the client pays in March. Expenses in January are $6,000 paid in cash.

• January profit: $20,000 − $6,000 = $14,000 ✅
• January cash flow: $0 in, $6,000 out = −$6,000 ❌

On paper, January was great. In the bank, January was painful.

Practical interpretation

• Track both profit and cash flow — they tell different stories.
• Keep a cash buffer that covers at least 1–3 months of fixed costs.
• Invoice quickly, collect quickly, pay carefully — see common cash flow problems.

Common mistakes

• Spending profit before it arrives as cash. An invoice is a promise, not money.
• Confusing the bank balance with profit. A healthy balance might just mean a deposit from a customer for work you haven't done yet.