The online comparison service says the deal is worth around $4.5 million and that iMoney attracts over 1.5 million unique visitors every month.
Executive Chairmen Damian Waller says the Malaysia based iMoney is an emerging business at a similar phase to where iSelect was ten years ago.
Mr Waller says the investment offers exposure to high growth consumer markets in South East Asia and an early-stage stake in a market leading business.
iSelect reported a net profit of $6.3 million in the 2014 financial year.