In Australia, if you’re a contract bookkeeper providing BAS services, then you must register as a BAS agent. The penalty for providing BAS services without registering ranges from a not insignificant $43,000 for an individual to a whopping $212,500 for a body corporate.
A BAS service includes any bookkeeping activity related to GST or PAYG, including configuring tax codes in accounting software, coding tax invoices, generating employee payment summaries or preparing Business Activity Statements
You don’t have to register as a BAS Agent if you’re an employee receiving wages or you only do basic bookkeeping data entry based on explicit instructions provided by the client or by their tax agent.
For details about registering as a BAS Agent page, visit the Tax Practitioners Board website.