“The letter provided a warning to lodge outstanding annual returns or be disqualified and risk other enforcement action,” the ATO cautioned.

Following these campaigns, the ATO said it has identified 702 trustees from 356 funds who have yet to lodge.

“We will shortly be contacting those trustees who have ignored our final warnings to begin compliance action where appropriate,” it stated.

The ATO stressed that one of he most important obligations of an SMSF trustee is lodgment of the SMSF annual return.

“It is an obligation we take extremely seriously. Lodgment of a SAR helps us to see if trustees have been compliant with their regulatory and tax obligations,” the Tax Office explained.

“Where a trustee is also a tax agent or auditor, we expect them to have a thorough understanding of their obligations, and as a result we have higher compliance expectations.”

The ATO stated that it contacts every trustee of an SMSF who does not lodge their SAR to encourage them to take immediate action.

“If we do not receive a response, we will issue a warning on the potential consequences of continued non-lodgment."

The ATO advised trustees that are behind on lodgment not to wait for a final warning to lodge.

“If you have received any correspondence from us reminding you to lodge, you should lodge any outstanding returns as soon as possible,” it said.