Child Support Guide

https://guides.dss.gov.au/child-support-guide

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The Child Support Guide is an official Australian Government resource providing comprehensive...

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### COTC Calculation Example

Source: https://guides.dss.gov.au/child-support-guide/2/3/1/10

This example demonstrates the step-by-step process for calculating the Costs of the Children (COTC) using the 2023 COTC Table, including determining the income range, number of children, ages, and final cost.

```text
Step| Methodology| Example (2023 COTC Table)  
---|---|---  
Calculate the COTC  
Step 1 – Child support income range| Locate the appropriate child support income bracket (column).| The parents' combined child support income is $86,000.  
Step 2 – Number of children| Determine if there are 1, 2, 3 or more children and identify the correct row.If there is 4 or more children, identify the 3 oldest children.| There are 4 children aged 17, 15, 10 and 8.The 3 oldest children are aged 17, 15 and 10.  
Step 3 – Ages of children| Identify the ages of the children - all under 13, all 13+ years or of mixed ages. Go to the corresponding range (box).| The 3 children are of mixed age – one child is aged under 13, and 2 children are aged 13+.  
Step 4 – Calculate the COTC for the assessment (using 2023 values)| Follow the instructions in the box to determine the COTC.| COTC = $23,932 + (($86,000 − $82,525) × $0.275)  
= $23,932 + ($3,475 × $0.275)  
= $23,932 + $1,303 (rounded)  
= $24,888  
**Calculate the COTC**  
Step 5 – Calculate the COTC for each child| Calculate the costs of each individual child by dividing Step 4 by the number of children in the assessment.| COTC = $24,888 ÷ 4  
= $6,222 per child  
```

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### Calculate total estimated ATI

Source: https://guides.dss.gov.au/child-support-guide/3/4/4

Sums the estimated ATI amounts from each income election and adds the last partial year income amount to get the total estimated ATI for the year.

```text
$10,784 + $16,535 = $27,319
```

```text
$2,898
```

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