Money and finance
Small Business Cash Flow: The Numbers to Check Every Month
A profitable business can still be short on cash at the wrong moment. Use a simple monthly check to see what is coming in and going out.
If the books say you made money, why does payday still feel tight?
Because profit and available cash do not arrive on the same schedule. A customer can owe you money while rent, payroll, tax, or supplier bills are due now. A business can look healthy across a whole month and still face a difficult week in the middle of it.
A short monthly cash review will not predict everything. It can help you see a likely gap early, when you still have options such as following up on an invoice, adjusting a purchase, or talking to a lender or accountant.
Two facts to anchor the review
- Cash flow tracks money moving into and out of the business. The U.S. Small Business Administration advises owners to look closely at money in and money out and use cash flow projections to plan ahead. SBA: Manage your business
- Receivables and payables belong in the picture. The SBA includes accounts receivable among the financial items businesses need to manage. An invoice sent is not the same as cash received, so note expected payment dates and uncertainty. SBA: Manage your business
Begin with cash available today
Choose the same review date each month. Record the cash actually available in business accounts, using your bookkeeping records or bank balances. Keep business and personal spending separate where possible so the starting point is meaningful.
Do not treat this number as a forecast by itself. It is only the current position. The useful question is how it may change as payments arrive and obligations fall due.
List incoming money by expected date
Write down customer payments you expect over the next four to eight weeks. Include the invoice, amount, due date, and how confident you are about when it will be paid. Separate confirmed payments from estimates or late invoices.
If a payment is overdue, follow up according to your normal terms and update the expected date rather than assuming it will arrive on time. If your business has uneven or seasonal income, use recent experience to make estimates cautiously.
List outgoing money by due date
Include payroll, rent, suppliers, loan payments, software subscriptions, taxes, insurance, inventory, and any planned equipment purchase. Look beyond the usual monthly bills: annual renewals, quarterly taxes, or a deposit for a large order can change the timing significantly.
Mark which costs are fixed, which could be moved, and which depend on a decision you have not yet made. This is not an invitation to delay obligations casually. It helps you know which choices are available before pressure builds.
Find the tight week, not just the monthly total
Compare expected incoming and outgoing cash week by week. A monthly sum can appear positive even when several large bills arrive before a customer payment. Note the lowest projected point and the assumptions behind it.
If a gap appears, decide on a responsible next step early. You might contact a customer about a late invoice, reschedule a discretionary purchase, discuss payment timing with a supplier, or ask an accountant about options. Avoid treating an unconfirmed loan or late payment as guaranteed cash.
Set a reserve target that fits your business
There is no single reserve amount that suits every business. Consider how predictable your income is, what bills continue during a slow period, how quickly costs can be reduced, and whether you hold inventory or employ staff. Build a target based on your obligations and risk, then review it as the business changes.
Recap: date the money
- Record available cash on a consistent monthly date.
- List expected customer payments and confidence in their timing.
- Add upcoming expenses, including irregular and annual costs.
- Compare the timing week by week and identify the lowest point.
- Choose an early action if a shortfall is possible.
This is a planning habit, not accounting or tax advice. If the forecast shows a serious shortfall or you are unsure how to handle a tax, debt, or payroll obligation, speak with a qualified professional who understands your situation.