An MMA fighter just became the test case for Australia's influencer gambling crackdown

The Australian Communications and Media Authority has just put every influencer with a betting sponsor on notice, and the test case is MMA fighter Jamie Mullarkey.

An ACMA investigation found Mullarkey promoted Leon, a Curacao based offshore gambling operator, on his Instagram throughout 2025 under a paid Talent Partnership Agreement. The deal paid him $2,500 upfront and $2,500 a month until it ended in August last year. His posts referenced the sponsorship directly, linked straight to the site and carried promotional hashtags.

This is the detail that matters beyond one fighter's grid. It is the first time ACMA has taken formal enforcement action against an individual influencer for breaching Australia's online gambling laws. Up until now, scrutiny has mostly landed on broadcasters, media companies and the gambling operators themselves. Influencers running betting sponsorships have operated in a genuine grey zone.

That zone just shrank considerably. The penalties on the books are not small. Simply promoting an illegal gambling service can carry civil penalties up to $59,400. Actively facilitating access, for example by posting a direct sign up link, can carry penalties as high as $2,475,000.

Mullarkey avoided the maximum consequences here. He ended the sponsorship, cooperated fully with the investigation, pulled the content quickly and, according to ACMA, showed genuine remorse. A formal warning was the result, not a fine.

Treat that leniency as the exception rather than the rule going forward. If you are an influencer, a manager or a brand with any betting sponsorship on the books, particularly anything offshore or unlicensed in Australia, this is the moment to actually read the fine print instead of assuming the brand deal came pre-vetted.

For the wider influencer marketing industry, it is a reminder that sponsored content carries real legal weight, not just a disclosure obligation. Regulators are starting to treat creators the way they have always treated traditional media outlets, which means the casual approach a lot of talent and management teams have taken to vetting sponsors needs an urgent rethink.

Mullarkey got off lightly. The next influencer ACMA looks at probably will not.