Formula 5&6 - using the income of only one parent

• Formula 5


  Used if a parent is a resident of a non-reciprocating jurisdiction or there are special circumstances
• Formula 6


  Used if one parent is deceased
• Formula 5 - one parent is a resident of a non-reciprocating jurisdiction


  A non-resident parent cannot be assessed for child support, and therefore the income of that parent is not part of the calculation of the assessment
• Formula 5 - special circumstances exist

  The Registrar will consider the facts to determine if special circumstances do exist. If the Registrar does accept the application, then Formula 5 is used to calculate the liability of the other parent.
• Formula 5 - steps involved in making a child support assessment

  Work out the parent's child support income and double that income.

  2. Work out the parent's percentage of care for the child.

  3. Work out the parent's cost percentage for the child.

  4. Work out the costs of the child using the income from Step 1.

  5. Work out: 1/2 x [costs of the child - (parent's cost percentage x costs of the child)]

  6. If the parent is not assessed to pay child support for a child in another case, the annual rate of child support payable is the rate worked out under Step 5.

  7. If the parent is assessed to pay child support for a child who is in another child support case, work out the parent's multi-case cap.

  8. The annual rate of child support payable for the child is the lower of the annual rate calculated at Step 5, or the multi-case cap calculated at Step 7.

  9. The parent must pay the annual rate of child support payable for the child to the non-parent carer(s).
• Formula 6 - one parent is deceased

  Work out the parent's child support income.

  2. Work out the parent's percentage of care for the child.

  3. Work out the parent's cost percentage for the child.

  4. Work out the costs of the child using the income from Step 1.

  5. Work out: Costs of the child - (parent's cost percentage x costs of the child)

  6. If the parent is not assessed to pay child support for a child in another case, the annual rate of child support payable is the rate worked out under Step 5.

  7. If the parent is assessed to pay child support for a child who is in another child support case, work out the parent's multi-case cap.

  8. The annual rate of child support payable for the child is the lower of the annual rate calculated at Step 5, or the multi-case cap calculated at Step 7.

  9. The parent must pay the annual rate of child support payable for the child to the non-parent carer(s).