Judge Thomas Ingram said Andrews "deceived and preyed on vulnerable people" over several years, including using his son's name as a front for some of his activities. When Andrews belatedly asked the Official Assignee for permission to have control of a business and was refused, he became unco-operative and continued deceiving people, the judge said.
The two charges of concealing property relate to his failure to tell the Official Assignee he opened two bank accounts in December 2008 and January 2011.
A forensic analysis of bank statements found Andrews received undeclared income of $100,020.57 between December 24, 2008 and August 8, 2011.
Defence lawyer Bill Nabney sought home detention.
But Judge Ingram told Andrews, found guilty at a jury trial last month, he needed to protect the rest of the community from "serial liars" like him.
"I have met some liars in my 35 years working in the courts but the lies you have told have been significantly outstanding, and you even had the jury in fits of laughter because your explanations were so improbable."