CHILD SUPPORT, EXPLAINED
A clearer place to begin.
If child support is new to you, the first steps can feel more complicated than they need to be. This guide helps you understand the decisions ahead — calmly, and in the right order.
START HERE
Start with two separate decisions.
They are related, but they are not the same. Working through each one separately makes the next steps much easier to see.
01
How will child support be arranged?
Administrative assessment
Services Australia applies the legislated formula using income, care and child details.
Private agreement
Parents agree on support themselves. Limited and binding agreements have different requirements and consequences.
A private agreement is a distinct legal arrangement. Independent legal advice is generally important before making one.
Compare agreement options02
How will payments be collected?
Private collect
Parents arrange payments directly between themselves.
Child Support Collect
Services Australia collects and transfers payments.
The best fit depends on communication, safety, reliability and what feels workable over time.
Compare collection optionsFor official guidance, see Services Australia’s child support overview .
A SIMPLE SEQUENCE
Move one decision at a time.
You do not need to resolve every issue at once. This is a practical order for getting oriented.
- 01
Get a working estimate
Use an independent calculator to understand the inputs and likely range before you make decisions.
Start an estimate - 02
Confirm the care picture
Write down the actual care arrangements now, and keep a record if they change.
Read about care arrangements - 03
Choose an arrangement
Decide whether an administrative assessment or a private agreement is appropriate for your circumstances.
Explore private agreements - 04
Choose collection
Consider whether direct payments or Child Support Collect is more workable and safe.
Compare official collection options - 05
Keep information current
Tell the relevant service when income, care or family circumstances change.
See what changes to report
THE BASIC IDEA
How an administrative assessment is worked out.
The legislated formula is detailed, but the core idea is straightforward: it considers each parent’s financial capacity, the children’s ages and care arrangements.
IN BROAD TERMS
Combined child support income × each parent’s share of care × the costs of children
The actual formula has several steps and rules. A result here is an independent estimate, not a formal assessment.
Read the official formula guideBEFORE YOU START
Gather the essentials.
You do not need perfect records to get oriented. These are the details that usually make an estimate or official application more useful.
01
Children’s details
Names, dates of birth and who they live with.
02
Care arrangements
The usual pattern of nights and any planned changes.
03
Income information
Recent taxable income, and any major changes since then.
04
Existing arrangements
Any written agreement, payments already being made, or related court orders.
SOME SITUATIONS NEED MORE SUPPORT
Slow down if the situation is complex or unsafe.
Extra support may be useful where there is family violence, pressure to agree, uncertainty about parentage, a child with additional needs, a significant income change, a business or trust, overseas circumstances, or a major disagreement about care.
Safety comes first. If managing information or contact could put you at risk, use a safe device and consider official support options before discussing arrangements.
Keeping your information safeCOMMON QUESTIONS
A few things people often ask first.
Do we need to go to court to start child support?
No. An administrative child support assessment is handled by Services Australia. Court is not the usual starting point.
Can we make our own arrangement?
Yes. Parents can make their own arrangements, including formal child support agreements. The right option depends on the circumstances and may need legal advice.
What if our care arrangements change?
Keep a clear record and update the relevant service promptly. A change in care can affect an assessment.
Is an online calculator an official assessment?
No. It is a planning tool. Services Australia issues formal administrative assessments.
What if we cannot communicate safely or reliably?
Consider Child Support Collect and seek tailored support. Safety and practical reliability matter when choosing an arrangement.
WHEN YOU’RE READY
Choose the next useful step.
PRIMARY SOURCES
Check the official guidance.
- Services Australia — Learning about child support
- Services Australia — Collection options
- Services Australia — Binding child support agreements
- Services Australia — Limited child support agreements
- Family Relationships Online — Legal advice
Reviewed:
AusChildSupport is independent. It is not affiliated with Services Australia or the Australian Government. This page provides general information, not legal or financial advice. An AusChildSupport result is an independent estimate; Services Australia issues formal administrative assessments. A private child support agreement is a distinct legal arrangement.