We finalised our 2024 FY payroll in early July and our payroll register figures matches the STP Finalisation report to the cent. However, when we lodged our BAS for the Apr- Jun quarter this week, the numbers preloaded by the ATO for gross pays and PAYG did not match. It looks like a pay reversal did not go through to the ATO, but it is reflected in our STP2 numbers from MYOB. I remember completing an update event to ensure that the figures all matched, when running a final payroll in June - but clearly, something went wrong. It is now late August and I have no idea how this could have happened or what to do to fix it.