The Financial Services Authority says of 20 money-lending firms it inspected, it found 85 contraventions of the Anti-Money Laundering and Countering the Financing of Terrorism Code.
The regulator has released the findings of a thematic review of the Island's money-lending industry - which consists of 37 businesses and almost 5,400 customers.
In its report, the FSA says it found a 94 per cent compliance rate for procedures and controls, with 78 per cent following the code's new business relationship rules and 81 per cent carrying out enhanced customer due diligence.
It says complying with the code is mandatory, and it provides a range of resources to help meet its requirements.
How will Island remain attractive during MONEYVAL assessment?
Do you know a company director who deserves an award?
Festive social event for young professionals this week
Fewer businesses now optimistic about future
Businesses needed for seaside kiosk
Businesses who wouldn't recommend IOM almost triples in 8 years
M&S officially opens new-look Douglas food hall