Scenario Calculator Guide
70/30 Care and Child Support in Australia
A 70/30 care split is rarely a zero-payment result because the formula still weighs each parent's income against the cost percentage created by care.
This scenario is useful when one parent has most care but the other still has meaningful overnight time and wants to estimate whether the amount rises or falls compared with low-care arrangements.
What changes the result
- The 70/30 split usually changes the result less through care alone than through the interaction of care and income share.
- Parents often misread 70/30 cases because they focus on nights instead of cost percentage.
- Use this scenario before negotiating a parenting plan that changes nights during school term or holidays.
Run the full child support calculator
Use the main calculator to test this scenario with your own income, care, and family structure.
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Frequently asked questions
Is 70/30 care treated as shared care?
Yes. A 70/30 split normally sits above the regular-care threshold, so both parents' care is reflected in the formula.
Can holiday time change the result in a 70/30 case?
Yes. Holiday blocks can move the annual percentage enough to change the care band used in the assessment.