Self-Support Amount Child Support Australia 2026
The child support self-support amount in Australia is $31,046 for 2026. Services Australia deducts this amount from each parent's adjusted taxable income before calculating child support income. It is one of the first figures used in the standard child support formula.
Quick Answer
This amount applies from 1 January 2026 to 31 December 2026. It is deducted from each parent's adjusted taxable income before the formula works out each parent's child support income.
How the Self-Support Amount Works
The self-support amount is the baseline income each parent is allowed to keep for their own living costs before child support income is calculated. It does not mean that the parent keeps exactly that amount in cash. It is a formula deduction applied to adjusted taxable income.
The basic Step 1 calculation is:
2026 Examples
| Adjusted taxable income | Less self-support amount | Child support income |
|---|---|---|
| $30,000 | $31,046 | $0 |
| $60,000 | $31,046 | $28,954 |
| $100,000 | $31,046 | $68,954 |
| $150,000 | $31,046 | $118,954 |
These examples only show the income step. The final payment also depends on the other parent's income, care percentage, the number and ages of the children, and whether any special formula paths apply.
What If My Income Is Below $31,046?
If a parent's adjusted taxable income is below the 2026 self-support amount, their child support income is treated as zero. That does not always make the assessment zero. The 2026 minimum annual rate is $551, and it can still apply where the parent has below regular care unless a suspended assessment or another exception applies.
If your income has dropped recently, compare the formula result with the income estimate process before assuming the current assessment will update automatically.
Where It Fits in the Formula
- Services Australia starts with each parent's adjusted taxable income.
- The self-support amount is deducted from each parent's income.
- Relevant dependent child amounts and multi-case allowances may also be deducted.
- The remaining child support incomes are combined and used in the rest of the formula.
For the full sequence, read how child support is calculated in Australia. To see the table used later in the formula, use the 2026 costs of children table.
Calculate Your 2026 Estimate
The calculator applies the $31,046 self-support amount automatically for 2026. Enter both parents' incomes and care details to see the full estimate.
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