The content creators in question are followed collectively by 50 million people.
The force reconstructed their earnings from social posts and collaborations with companies.
Businessman and DJ Gianluca Vacchi and video maker Luis Sal were among the influencers involved in the tax audit, which did not have criminal relevance.
Influencers have come under close scrutiny in Italy in recent months after Chiara Ferragni found herself at the centre of a media storm and judicial probe over earnings from allegedly bogus charity endorsements involving a pandoro Christmas cake, an Easter egg and a doll that looked like her.
The 36-year-old influencer and businesswoman has insisted she acted in good faith.
ANSA
