The ATO has noticed some businesses have not updated their GST reporting and accounting methods after exceeding the relevant thresholds.

If a taxpayer’s business has a GST turnover of $10 million or more, they need to use full BAS reporting instead of ‘simpler BAS’, and account for GST on a non-cash (accruals) basis.

If their business has a GST turnover of $20 million or more, they need to report GST monthly on their BAS instead of quarterly.

The ATO is moving some businesses to the correct GST reporting and accounting methods from 1 July 2026, although taxpayers can voluntarily make the switch now in ‘Online services for business’ on the ATO’s website

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