The Sunday Times newspaper (UK) published their 2009 'Rich List' this past weekend - a list of the richest people in Britain and Ireland. In this years overall list Jay is in position 1550 with an estimated worth of £35 million pounds. In 2008 Jay was listed in position 1794 and valued at £40 million pounds (by an 'expert' from the newspaper).
Additionally for 2009 this amount puts him in position 46 in the list of 'The top 50 music millionaires'. Jay sits in position 46 alongside four others, including Kylie Minogue and Ronnie Wood.
"Kay is regarded as shrewd operator, building two studios for £1m and leasing them to Sony, so his profit margin is higher. He collects Ferraris and lives in a Buckinghamshire mansion. His company Jamiroquai last showed £8.59m net assets, which included £1.2m for his cherished cars. But with the lack of activity, our rock expert cuts Kay back to £35m."
The Rich List and more information about how it created can be found online at the Times website