You're profitable but broke: cash flow vs profit explained

Your accountant says you had a good year. Your bank account disagrees. This happens to profitable businesses constantly: accounting profit and actual cash rarely move in sync. Not an error, not bad luck. Just how accrual accounting works — and the gap is often large enough to cause a cash crisis in a genuinely healthy business.

Why profit and cash rarely match

Profit follows accrual accounting: revenue and costs get recorded when they happen, not when money changes hands. Invoice €10,000 in December, collect in February. The profit lands in December. The cash shows up two months later.

Cash flow records only actual money movements: what hit your bank account and what left it. Think of it as your bank statement, not your profit and loss report.

April: profit positive at €3,600 but cash down €1,800 — classic slow-payment month

The 5 most common causes of the cash-profit gap

• Outstanding receivables. The most common one. You delivered, you invoiced, the client pays in 60–90 days. Your suppliers and staff can't wait.
• Excess inventory. Materials or stock you bought but haven't turned into revenue yet. The cash is sitting in your warehouse.
• Upfront supplier payments. Some suppliers want payment immediately or in advance. You record the cost when you use the goods, but the cash left your account weeks earlier.
• Loan repayments. The principal you repay isn't an accounting cost (it reduces a liability, not profit), but it leaves your account every month regardless.
• VAT and tax liabilities. You collect VAT from customers but send it to the tax authority quarterly. That money sits in your account until it doesn't.

The hidden cost of slow-paying clients

Every unpaid invoice is an interest-free loan to your client, paid by you. The calculator below shows what that actually costs:

How to improve cash flow without increasing revenue

• Invoice the moment you deliver. A 2% early-payment discount almost always returns more in liquidity than it costs in margin.
• Negotiate longer supplier terms. Push for 60–90 days instead of 30. The spread between when you collect and when you pay is your main working capital lever.
• Order more often, in smaller quantities. The extra delivery cost is almost always less than the cost of cash sitting in your warehouse.
• Set aside VAT monthly in a separate account. Then the quarterly remittance isn't a surprise.
• Keep a cash buffer. Two months of fixed costs, minimum. It turns a bad month into something you can manage.

The 8-week cash flow forecast

The most useful cash management tool is a simple rolling table: expected inflows (invoices due, anticipated payments) and committed outflows (suppliers, rent, payroll, loan repayments, VAT) for the next eight weeks.

Update it every Monday. Fifteen minutes. You see problems two months out, not the day they hit.

The forecast should not be optimistic. Use confirmed payment dates, not hopes. Separate invoices that are due from invoices that customers have actually promised to pay. On the outflow side, include fixed commitments first: payroll, rent, taxes, debt, leases and recurring software. Variable supplier invoices can then be prioritised with clearer context.

A practical rule: if the lowest point in the next eight weeks falls below one month of fixed costs, act now. Accelerate collections, delay non-essential purchases, renegotiate supplier terms or reduce stock orders. Waiting until the account is already empty removes your options.

Key checks for owners

Review cash weekly, profit monthly and working capital every time volume changes. Track DSO, supplier payment days, stock value, VAT due and the next payroll date. Then compare cash flow with revenue versus profit: growth is healthy only when it improves both margin and liquidity.

Frequently asked questions