Carat has held the account for the past three years and this is expected to now be extended by a further three years.
An insider at Carat said: "I am unable to confirm anything at the moment, but things are certainly looking good. We hope to be able make an official announcement tomorrow."
An insider at Australia's MPG, which is a joint venture between Harold Mitchell's Mitchell Communications Group and the Havas-owned MPG, said she did not believe they had been successful in the pitch.
The reappointment of Carat completes a company-wide review that has seen Tourism Australia drop its controversial "So where the bloody hell are you" campaign, after DDB snatched the global creative account from former incumbent M&C Saatchi in July.
Carat set to retain £30m Tourism Australia account
LONDON - Aegis Group's Carat is poised to officially announce it has retained the £30m global media planning and buying duties for Tourism Australia tomorrow (Friday), following a statutory review that pitted the agency against Media Planning Group in Australia.