The richest New Zealander - food and investment magnate Graeme Hart - had a fortune estimated at $1.2 billion.
The film revenues do not take into account money made from video, DVD and some merchandise.
Jackson is also receiving an eight-figure salary to direct the films.
Along with his studios in Miramar, Wellington, he owns several homes in the suburb of Seatoun, his family home in Pukerua Bay, north of Porirua, and is renovating a 1900s hideaway near Masterton which he bought for more than $870,000.
Jackson has not said what percentage he is receiving for The Lord of the Rings.
Time's main competitor, Newsweek, said last year that Jackson was getting 10 per cent but that it was shared with the project's first backers, Miramax.
In April, a New Zealand Institute of Economic Research report for the Film Commission estimated that the filming of the $650 million project pumped $352 million into the economy in the 12 months to March this year.
- NZPA
Herald feature:
Lord of the Rings
A long expected party