The AFP announced the new charges on Friday, which include 105 counts of producing child abuse material, one count of carrying out a sexual act with a child under 10, five counts of filming a person engaged in a private act in circumstances of aggravation, and four counts of possessing child abuse material.
Mr Tait, 35, has been in custody since his initial arrest in July. The alleged victims are children known to Mr Tait and those who attended five early childhood education centres in Sydney's north-west where he worked or attended. Police said the additional charges relate to previously identified alleged victims; no further children have been identified.
The investigation, Operation Moonbi, has involved the review of 2.4 million electronic files. The AFP has set up a dedicated website listing more than 55 childcare centres where Mr Tait worked or attended between 2009 and 2025, predominantly in Sydney's north-west.
The matter is next scheduled to be heard at Parramatta Local Court on October 8.