Why can a profitable business struggle to pay suppliers on time?

Profit answers a different question from the payment run

Profit measures income and expenses for a period under the accounting basis used. The bank balance records cash held at a point in time. A supplier invoice can be due today while the income earned from using those goods is still sitting in unpaid customer invoices. A healthy margin does not change either payment date. This is why a profitable month can end with an uncomfortable supplier call.

The IFRS Foundation’s IAS 7 overview explains that cash flow information separates operating, investing and financing activity and accounts for differences between profit and cash movements. For day to day decisions, the owner also needs payment dates and available funds. A monthly profit statement by itself cannot say which invoices can be paid on Friday.

Find where the cash is held or committed

Start with bank balances reconciled to the bookkeeping records. Identify restricted funds, uncleared payments and any available facility separately. Do not count an overdraft application as accessible money. Then examine unpaid customer invoices, stock, supplier balances, tax obligations, payroll, equipment purchases and finance repayments. The purpose is to explain the movement, not to treat every balance as cash that can immediately be released.

Inventory is a common source of pressure. Buying additional stock may consume cash before the goods are sold, while only the cost of goods actually sold appears in the relevant profit calculation. A growing stock balance can therefore sit alongside reported profit. Customer receivables have a similar timing effect: a sale may be recorded before the customer settles the invoice.

Illustrative example: one profitable order creates a gap

A fictional distributor sells an order for R100,000 and incurs R65,000 for goods plus R15,000 of other expenses. Ignore VAT, tax, opening balances and other transactions solely for this illustration. The simplified profit is R20,000. The customer pays after sixty days, but the goods supplier expects payment after thirty days and the other expenses must be paid during the month.

If the business begins with R25,000 cash, it cannot fund all R80,000 of those payments before the customer receipt. The order is profitable in the simplified calculation but creates a temporary funding gap of R55,000. The owner must address the timing, terms or financing. Calling the R20,000 profit available cash would miss the problem entirely.

Real forecasts must include the excluded items and actual contractual terms. The example does not recommend a credit period or borrowing product. It shows why the order decision and the payment decision need separate calculations. A second profitable order with the same timing can increase the cash gap before either customer pays.

Build a payment schedule from evidence

Use sufficiently short periods to reveal the difficult week. A positive month end balance may conceal a shortfall halfway through the month. Start with the bank position, add expected cleared receipts, subtract scheduled payments and carry the resulting balance forward. Keep an unchanged copy so you can later compare expected and actual timing.

Separate disputes from genuine funding shortages

An overdue supplier balance is not always a single cash problem. Some invoices may be duplicated, disputed or awaiting a credit note. Others may simply be valid bills the business cannot currently pay. Reconcile supplier statements and investigate differences promptly. Do not describe every unresolved invoice as disputed to make the payment position look better.

For a genuine dispute, retain the order, delivery evidence and correspondence and identify any undisputed amount. Follow the contract and obtain advice where necessary. For a funding shortage, prepare an honest proposed payment schedule based on expected resources. A bookkeeping adjustment cannot remove a valid obligation merely because cash is tight. Record agreed changes to terms and update the forecast when they are confirmed.

Choose a response that addresses the cause

If late collections drive the gap, improve invoice submission and follow up with the customer’s payment contact. If excessive stock is the cause, review purchasing quantities and slow moving lines. If equipment purchases consumed funds, examine the remaining commitment and approved financing. If owners withdrew cash beyond what the business could support, include those withdrawals in the explanation and future plan.

Discuss supplier terms before a missed commitment becomes a recurring surprise. The supplier may accept a revised schedule, request security or decline further credit. Do not assume agreement until it is confirmed. Likewise, a proposed customer deposit may improve future orders but cannot be inserted as a receipt for an existing contract that does not provide for it. Cash planning should reflect enforceable terms and realistic actions.

Test whether growth improves or worsens the position

Compare the cash cycle of a new order with the business’s remaining capacity. Ask when stock must be bought, when staff or subcontractors must be paid, when the customer can be invoiced and when cleared funds are likely. Include retentions, staged approvals and any deposit restrictions where relevant. A profitable sale can still require more working capital than the business has.

Test a slower payment case as well as the expected case. If one important customer pays a month later, identify the first payment the business cannot meet and the action needed before that date. This is more useful than applying a general percentage contingency without knowing what it covers. Avoid accepting additional work on the assumption that an unapproved facility will arrive in time.

Know when the problem needs urgent professional attention

A short timing mismatch and a persistent inability to meet obligations are different situations. Repeated missed payments, mounting tax debt, rejected facilities and supplier account suspensions can indicate a wider problem that a collection reminder will not solve. Gather the current financial records and seek prompt accounting and, where appropriate, legal advice about the business’s position and the directors’ responsibilities.

Do not make unsupported promises or favour a dramatic transaction without understanding its implications. A professional assessment needs accurate liabilities, asset recoverability, contract commitments and credible cash assumptions. Keep the facts current as negotiations develop. The purpose of escalation is to make informed decisions before options narrow further, not to label the business from a single bad week.

Check the supplier account before the payment decision

Ask whether the proposed payment includes every valid invoice and deducts only credits that have actually been agreed. Supplier statements may contain invoices missing from the ledger, while the ledger may contain payments the supplier has not allocated. Send remittance information through the established channel and resolve allocation differences. Otherwise the business can pay the intended amount and still appear overdue on the supplier’s records.

Distinguish an agreed payment plan from a payment instruction waiting for bank authorisation. Record who may approve the transfer and when funds will clear. A cash forecast based on a Friday transfer does not establish that the payment was released successfully. After payment, retain the bank reference, update the supplier ledger and check the next statement. These final checks matter when continued supply depends on the account being brought within agreed terms.

If a supplier changes banking details during the discussion, verify the change independently using a known contact. A genuine cash shortage should not make the business rush past ordinary payment controls.

Connect the accounts with a workable forecast

Ask for a bridge explaining why profit did not become cash, then use a dated forecast to plan the next payment cycle. Review actual customer receipts and supplier payments against that forecast regularly. A recurring difference should change the assumptions. Keep the operational action owner visible so that the spreadsheet is connected to collection calls, purchasing decisions and approved commitments.

Vatco’s cash flow management service can help turn reconciled records into a clearer payment view. Bring the supplier age analysis, customer balances, bank information and known commitments. For the reporting explanation, read which reports explain rising sales and falling cash. The immediate objective is to know the amount, timing and cause of the gap before making the next promise.