In addition, not one of the four companies of which he was still a registered director and shareholder, complied with tax regulations.
It also transpired that his engineering company SGL at the end of last year was awarded an additional 13 contracts by the Polokwane municipality.
This was apart from the tenders of more than R140m that SGL received from another eight municipalities in Limpopo between 2007 and 2009.
An inquiry last month found that construction on all of these contracts was extremely shoddy or never completed.
ID leader Patricia De Lille learned confidentially that Malema's companies also had not received certificates to verify that their tax matters were in order.
City Press apparently learned that the SA Revenue Service has appointed a senior investigation team to look into Malema's affairs.
Malema recently said that Sars was welcome to investigate him and said he was being targeted.