Request for STP Remediation – Duplicate Reporting Due to MYOB and Xero Transition

I am writing to request your assistance with a Single Touch Payroll (STP) reporting issue that has arisen due to our transition from MYOB to Xero.

Background:

Payroll from 1 July 2025 to 31 March 2026 was processed and reported through MYOB, and this data has already been finalised with the ATO.

As part of our system transition, we commenced using Xero from 1 January 2026 and posted pay runs for the period 1 January to 31 March 2026 for accounting purposes.

STP was not enabled in Xero until 9 April 2026, at which point the first STP submission was made.

Issue:

Upon enabling STP in Xero and filing the first pay run on 9 April, Xero automatically reported year-to-date (YTD) figures, which included payroll data from 1 January to 31 March 2026.

As a result, the same payroll data for this period has now been reported to the ATO twice:

Once through MYOB (already finalised), and

Again through Xero (via YTD reporting).

Requested Remediation:

Based on guidance received, I understand that resolving this requires adjustments within MYOB. I would appreciate your assistance in confirming and facilitating the following:

Unfinalisation of STP data in MYOB for the relevant period, if possible.

Processing of STP update events or adjustments to reverse the payroll amounts reported for 1 January to 31 March 2026.

Ensuring that MYOB reflects and reports only the period 1 July 2025 to 31 December 2025.

Re-finalising STP in MYOB for the corrected period ending 31 December 2025.

Could you please confirm:

Whether unfinalising STP for this period is possible; and

The exact steps required within MYOB to perform these corrections without impacting our financial data integrity?

We have followed prior instructions provided by MYOB support and did not submit nil balances.

Your guidance on how best to resolve this duplication and ensure accurate reporting with the ATO would be greatly appreciated. thanks