BAS Reporting/Preparation Variances

We’re experiencing ongoing issues with a client’s BAS being out of balance every quarter and are hoping someone in the community has encountered, and resolved something similar.

The problem is that the BAS Report figures do not match the figures that flow through to the actual BAS preparation screen. Each quarter there are unexplained variances between the BAS Report and the BAS itself.

We have already

Confirmed the reporting basis cash vs accrual is consistent

Checked date ranges align with the BAS period

Reviewed GST tax codes for consistency

Looked for manual journals or adjustments to GST control accounts

We contacted MYOB Support, but unfortunately the assistance wasn’t helpful and didn’t identify the cause of the variances.

A major challenge is that, due to MYOB’s restricted reporting dates, we are unable to break the BAS down week by week or month by month to isolate where the differences are occurring, as the reporting periods cannot be adjusted.  

Any insight or guidance would be greatly appreciated.