BAS for Medical Practices: Understanding GST-Free Health Services

"Medical" Doesn't Automatically Mean GST-Free

It's a common assumption that anything provided by a medical practice is GST-free. It isn't. Generally, services that attract a Medicare benefit are GST-free, but cosmetic procedures, some specialist services without a Medicare item number, and administrative outputs like medico-legal reports are typically taxable supplies.

Medico-Legal Reports Are a Common Trap

Reports prepared for legal, insurance or employment purposes — not for treating the patient — are generally taxable, even though they're written by a medical practitioner using clinical knowledge. Practices that treat all practitioner output as automatically GST-free often miss this distinction entirely.

What Getting It Wrong Costs

Treating taxable services as GST-free understates GST payable, which the ATO can assess retrospectively with penalties and interest once identified. Going the other way — treating GST-free services as taxable — means either overcharging patients or the practice absorbing GST it didn't need to pay.

Setting Up Xero to Handle the Split Correctly

• Separate income accounts for GST-free clinical services and taxable services like cosmetic work or medico-legal reports.
• Default tax codes set on each account so day-to-day data entry doesn't require manually deciding GST treatment for every transaction.
• Periodic review as the practice's service mix changes over time.

A Quarterly Check Worth Doing

Before each BAS, a quick review of any unusual income items — new service types, one-off procedures — catches misclassification before it's locked into the quarter's figures rather than after.