The Australian Tax Office continues to honour a secret deal it struck with crime patriarch George Williams that allowed him to keep a second home while owing more than $570,000 in taxes.

Rather than recouping the tax debt by forcing the convicted drug dealer to sell the house, the ATO agreed in 2013 to become the mortgagee on the Essendon property.

The apparent leniency of the ATO towards the Williams clan is expected to infuriate those evicted from their homes by banks after falling behind on mortgage repayments.

During the month of August 2013 - when the ATO finalised the controversial agreement with Mr Williams - more than 150 Victorians faced eviction from their homes by commercial banks after failing to service loans.