Ordinarily, child support is determined administratively by Services Australia (child support) mainly taking into account the incomes of the parents and the care percentage of the child.
These assessments are known as administrative assessments. Only in some limited circumstances can you apply to the Family Court in relation to child support.
There is also the option for parents to reach their own agreement in relation to the payment of child support. The agreed child support payable can be more or less than an administrative assessment.
Private child support arrangements can be formalised by entering into either a limited or a binding child support agreement. Your agreement can include periodic and non-periodic payments such as school fees or health insurance.