Hi, I'm trying to work out how these Child Support Agency calculate taxable income. I do my tax return every year, so Child Support Agency has this information readily available. My ex hasn't done her tax since we separated. My ex's income (according to Child Support Agency estimate) is $2000 and I'm not sure how this is derived. She works full time, however, I think its cash in hand. Shouldn't she still have to put down what she earns from Centrelink? This is what I have estimated from their website. Parenting Payment - Single/ Fortnightly /yearly Parenting Payment - Single - $737.10 Rent Assistance - $0.00 Energy Supplement - $12.00 Estimated Centrelink payment - $749.10 / $19,476.60 Family Tax Benefit Part A - $93.94 Family Tax Benefit Part B - $73.64 Energy Supplement Part A - $1.96 Energy Supplement Part B - $1.40 Rent Assistance - $98.28 Estimated Family Assistance payment - $269.22 / $6,999.72 Employment income, Other income and Compensation Direct Deductions - $0.00 Gross total estimate - $1,018.32 / $26,476.32 Estimated taxation liability - $0.00 or 0% Net total estimate - $1,018.32 / $26,476.32 Child Support Agency payment - yearly $6,000.00 Shouldn't her income then be the $26,476.32 per annum? Thanks in advance.