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As part of our ongoing payday super and payment improvements, Lightning Payroll has recently introduced enhanced validation of BSB numbers.
Previously, BSBs entered into Lightning Payroll were not actively validated. We now validate BSBs in real time using a connection to the Australian Payments Network (AusPayNet) BSB Lookup, which is the authoritative source of BSB data in Australia. AusPayNet is the organisation responsible for issuing, maintaining, and publishing BSB details for Australian banks.
This means Lightning Payroll is checking BSBs against the same official directory used by banks and payment systems, helping ensure payments are sent using valid and current banking information.
You may see this warning if a BSB has been closed, merged, or replaced by the bank. In these cases, the old BSB is considered deprecated and can no longer be used for payments.
If you see an invalid BSB warning, we recommend checking the BSB directly using the official AusPayNet lookup tool that Lightning Payroll relies on:
When you search for the BSB, the lookup may show that it has been merged into another BSB. In this situation, AusPayNet will clearly display the new BSB that should be used instead.
Once you have the replacement BSB, update the employee, supplier, or super fund record in Lightning Payroll and the warning will be resolved.
This change improves payment reliability and helps prevent failed or delayed transactions caused by outdated or invalid banking details.