ROSA in brief A series of reference tools which explains the changes resulting from the Review of Self Assessment (ROSA) recommendations. http://ato.gov.au/distributor.asp?doc=/content/63928.htm Published: September 21 2005 Income tax deductions to be denied for illegal activities This measure is to change current legislation to ensure no tax deductions can be obtained for income earned through illegal activity. http://ato.gov.au/distributor.asp?doc=/content/63762.htm Published: September 21 2005