A supplier reminder may use a different due date from your agreement

The reminder arrives earlier than expected

Suppose a supplier's automated email says an invoice is overdue, but your payment schedule uses a later date. Cash is limited and the team prepares an urgent transfer without checking why the dates differ.

Establish the supported due date first. The reminder may reveal an error in your records, the supplier's setup or the understanding of the terms. None should be assumed without checking the documents.

Find the relevant agreement

Locate the quotation, accepted order, credit terms and any later agreed change. Identify which terms apply to the particular purchase rather than relying on the arrangement used for another supplier.

business.gov.au's payment-terms guidance explains that terms set out when and how payment is expected. Use the agreed basis to investigate the discrepancy instead of treating an automatically printed date as conclusive.

Source: business.gov.au: Payment terms

Check the date calculation

Compare the invoice date, receipt information and any contractual trigger relevant to payment. Record how each system arrived at its due date and identify a simple data-entry or setup error if one exists.

If the wording itself is disputed, obtain appropriate advice. Do not turn your preferred interpretation into a statement that the supplier has no right to seek payment.

Ask the supplier to reconcile the difference

Send a concise enquiry identifying the invoice, the two dates and the document supporting your calculation. Request confirmation or an explanation of the alternative basis.

Keep the communication separate from any inability to pay. A genuine date discrepancy should be resolved on its facts rather than used as an unsupported excuse to delay an amount the business accepts is due.

Update both the ledger and the forecast

Once the position is confirmed, correct the relevant records and retain the explanation. Check whether other invoices have the same setup issue rather than fixing only the reminder currently causing pressure.

If the confirmed date creates a shortfall, discuss a realistic response promptly and seek advice where the business cannot meet its obligations. Correcting the calendar does not itself solve an affordability problem.

Review the next unexpected reminder

Before adding an unfamiliar overdue notice to an urgent payment run, compare it with the actual terms and account history. Nominate one person to resolve the discrepancy and communicate the result.

The outcome should be a reliable payment date and a clear account record. That lets the business address genuine overdue obligations without allowing an unexplained system date to dictate the entire cash discussion.