Tax Office updates nation's widening income gap - surgeons top list of biggest earners

Australia's richest live near Sydney's northern beaches and earn more than 10 times the income of the nation's poorest, who live in regional NSW, ATO statistics show. 

Sydney's 2108 postcode recorded Australia's highest average taxable income of $230,330. New South Wales was home to the lowest-earning area. Postcode 2308 had an average taxable income of $20,589. 

However, ATO deputy commissioner Louise Clarke tells ABC's Peter Ryan the data does not provide enough information to identify tax avoiders.