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Cash Flow Basics: A Simple Weekly Routine for Small Businesses

A business can make sales and still struggle to pay its bills on time. That is why cash flow deserves its own routine. You do not need a complicated finance department to start: a current cash balance, a list of expected receipts, a list of upcoming payments, and a short weekly review can reveal problems early.

Business Growth Meetup · Practical guide · 5 November 2026

1. Understand sales, profit, and cash are different

Sales record what you have sold. Profit estimates what remains after the relevant costs are accounted for. Cash flow tracks when money actually enters and leaves the business. A customer invoice may count as a sale before the money reaches your account. A profitable project can still create a cash squeeze if you pay suppliers long before the customer pays you.

2. Start with a reliable opening cash balance

List the money currently available to the business, separating business funds from personal money. Include bank and cash balances you can actually use, and note any restrictions or amounts already committed. Keep the record dated. A forecast is only useful if its starting point is accurate.

3. Map expected money in by date

List each expected customer payment, the amount, the due date, and how confident you are that it will arrive on time. Separate confirmed payments from estimates. Follow up on overdue invoices politely and early. If customers often pay late, build that reality into the forecast instead of assuming every invoice will be paid exactly on its due date.

4. Map money out before it becomes urgent

Include rent, salaries or contractor payments, inventory, supplier invoices, subscriptions, utilities, taxes or statutory obligations, loan repayments, delivery costs, and other commitments relevant to your business. Record due dates and whether each payment is fixed, variable, or optional. Do not ignore small recurring expenses; together they can become meaningful.

5. Build a rolling 8–13 week view

A weekly cash forecast over the next two to three months is often a useful starting point for a small business. For each week, take the opening cash, add expected receipts, subtract planned payments, and calculate the closing cash. Carry that closing balance into the next week. Update the forecast every week using actual results and new information.

6. Decide what to do when a gap appears

If the forecast shows a shortfall, act before the due date. Possible steps include following up on receivables, asking suppliers about payment timing, reducing non-essential spending, adjusting purchasing plans, collecting deposits where commercially appropriate, or discussing financing options carefully. Do not delay legally required payments or make commitments you cannot meet. Consider professional advice for tax, debt, and regulatory decisions.

7. Keep the routine simple and consistent

Choose one day each week to update the numbers. Compare forecast receipts and payments with what actually happened. Note the largest changes and the next decision required. A simple spreadsheet is enough if it is accurate, regularly updated, and understood by the people making decisions.

Frequently asked questions

Can a profitable business run out of cash?

Yes. Timing matters. Money may be tied up in unpaid invoices or inventory while rent, payroll, and suppliers still need to be paid.

How much cash should a small business keep?

There is no single number for every business. It depends on fixed costs, payment timing, seasonality, supplier terms, and how predictable revenue is. Use your forecast to estimate a realistic buffer and review it as the business changes.

Is a spreadsheet enough for cash flow tracking?

For many small businesses, yes at the beginning. The important part is that it is updated consistently, separates expected from confirmed cash, and reflects real due dates.