In the latest MCOT newsletter, Ron Franks wrote that he had informed the board that "my work is largely complete" and that he'd be stepping away on September 23.

It follows a spate of resignations of both board members and employees in the past year, as well as a state government audit of the organisation to determine whether it was using the $110,000 annual funding it receives effectively.

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The final audit report did not detail anything that warranted concern.

"Earlier this year, I joined the Multicultural Council of Tasmania with the express task of supporting the organisation through a particularly challenging period of change," Mr Franks wrote in the newsletter. "Originally, it was expected that my work would require a year."

"However, I am very pleased to announce that we have achieved most of the milestones much sooner than anticipated.

"With these achievements, I have informed the MCOT Board that my work is largely complete and that it is now time for the organisation to focus more readily on its peak body function which is to represent you, and to pursue key multicultural social and public policy objectives."

Mr Franks said he would be departing the role on September 23 and "will be looking forward to witnessing the next successful chapter in MCOT's future".

"Importantly, I have made myself available to assist with transition and to support the board and staff, as required," he wrote.

A Communities Department spokesperson said the department continued to work with MCOT to ensure it's able to deliver the programs for which it's funded by the state government.

MCOT's AGM will be held on September 30.

Mr Franks was contacted for comment.