yeah the estimate has seperate sections
adjusted taxable income is one (is the amount you actually pay tax on)
reportable super contributions (ones you pay yourself) is another

the reason being you already get a tax break for having those super contributions (your taxable income is heaps less) - if it is then left off for FTB purposes, you get a double tax break. so it is added back on. there were a (large) number of people using this as a loophole to be on huge pre-tax incomes but still get FTB so the reportable super contributions was added back in a few years back to stop the rorting

sucks big time for small time people like yourself trying to do the right thing for retirement, but it has to be across the board