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Housing, utilities and the household costs that support a child’s day-to-day life.
Understanding child support
What does child support cover?
Child support helps meet the overall costs of raising a child. An ordinary periodic assessment is generally a contribution to day-to-day care—not an itemised reimbursement or a bill-by-bill allocation between parents.
Services Australia explanationImportant boundary
This is general information. AusChildSupport provides an indicative Estimate; Services Australia makes Formal Assessments.
01 · Everyday costs
What the payment helps support
These are practical examples of the costs involved in raising a child. They are not separate guarantees, spending quotas or automatic extra liabilities.
Everyday living
Food, clothing and other ordinary needs as a child grows.
Learning
Education, school-related needs and childcare.
Health
Health, dental care and ordinary medical needs.
Getting around
Transport connected with the child’s everyday life and care.
Growing up
Sport, recreation and activities that form part of family life.
The scheme models costs using standardised rules. It does not prescribe a separate amount for each category above. Official source
02 · The assessment
The formula estimates a share, not a shopping list
Standardised costs and care rules help determine an assessed amount. They do not rebuild either household’s actual budget or require a receipt-by-receipt split.
Parents’ incomesCare for each childNumber & ages of children
Formula-basedCosts of the children
Formal outcomeAssessed child support amount
A The costs table recognises combined income, the number of children and their ages.
B A cost percentage recognises how much of a child’s costs a parent meets through care.
03 · Particular expenses
When a named expense matters
A school fee, medical cost or direct payment can matter—but only through a legitimate pathway. Paying a bill does not automatically change an ordinary liability.
01
A private understanding
- What it is
- Parents decide between themselves how a particular payment will be treated.
- Is agreement involved?
- Yes — clarity between both parents is central.
- Who decides or records it?
- Services Australia does not decide the terms of a private understanding.
- Important limitation
- A private understanding does not by itself guarantee that a direct payment will be credited against a registered liability.
02
A child support agreement
- What it is
- A formal agreement can specify cash payments, non-cash items, or both — including items such as school fees or health insurance.
- Is agreement involved?
- Yes. Both parties make the agreement.
- Who decides or records it?
- Services Australia applies an accepted formal agreement under the rules for that agreement type and collection arrangement.
- Important limitation
- Limited and binding agreements have different requirements. Binding agreements require independent legal advice for both parties.
03
A non-agency payment
- What it is
- A direct payment to the receiving parent or a payment to a third party may be reported for possible credit.
- Is agreement involved?
- Usually both parents agree it was child support. Some prescribed payments can be considered without that agreement.
- Who decides or records it?
- Services Australia applies the credit rules and records any accepted amount.
- Important limitation
- A bill paid directly is not automatically a deduction. Prescribed-payment credits have specific conditions and limits.
04
A change of assessment
- What it is
- A parent or carer asks Services Australia to consider special circumstances that may make the assessment unfair.
- Is agreement involved?
- No joint agreement is required to apply; the other parent can respond.
- Who decides or records it?
- Services Australia decides whether a listed reason is established and whether a change is fair to both parents and the child.
- Important limitation
- High cost alone does not guarantee a change. Evidence, a recognised reason and the individual facts all matter.
04 · Clear answers
Common misunderstandings
Short answers to the questions that most often turn a specific bill into a broader dispute.
Does child support automatically mean each parent pays half of every bill?
No. The formula works out each parent’s share using standardised costs, income and care. An ordinary assessment is not a standing rule that every separate bill is split 50–50.
Official sourceAre private school fees automatically extra?
No. School fees may matter through an agreement, the non-agency payment rules, or a change-of-assessment process in special circumstances. The right pathway depends on the facts; one parent should not assume a unilateral deduction.
Official sourceCan the paying parent direct how every dollar is spent?
An ordinary periodic payment supports day-to-day care. DSS guidance explains that the receiving parent determines how that money is spent; it is not ordinarily tracked as an itemised household account.
Official sourceDoes paying a bill directly automatically reduce child support?
No. A direct or third-party payment may be credited when the relevant non-agency payment rules are met, but payment of the bill alone does not create an automatic deduction.
Official sourceCan unusual medical, educational or childcare costs affect an assessment?
Potentially. Services Australia lists special-needs costs, jointly intended education and certain childcare costs among the reasons it may consider. The process is evidence-based and depends on individual circumstances.
Official source05 · One practical walkthrough
A school fee arrives. What should you ask?
The fact that an expense relates to a child does not settle how it should be treated. Work through the arrangement before assuming it is included, extra or deductible.
Non-agency payment guidance- 01
Is the fee already being met from the ordinary payment and each household’s usual spending?
- 02
Did both parents agree how this expense would be handled?
- 03
Is there a limited or binding child support agreement that deals with it?
- 04
Could the non-agency payment rules apply if one parent pays the school directly?
- 05
Are there special circumstances that Services Australia may need to consider?
No universal conclusion
The answer depends on the existing assessment, any agreement, the payment history, evidence and the applicable rules.
06 · Next step
Choose the route that matches the question
Start with the question you are trying to answer—not the outcome you hope a particular bill will create.
Understand a likely amount
Use the AusChildSupport Estimate
Explore an indicative child support amount from the information you enter.
Start an EstimateUnderstand the formulaRead how child support is calculated→Formalise particular expensesInvestigate child support agreements↗Report a direct paymentContact Services Australia about credit rules↗Special circumstancesCheck the change-of-assessment process↗
Rights, disputes or significant financial consequencesConsider independent legal advice
07 · Evidence register
Official sources behind this guide
Primary Australian material checked on 2 August 2026. Open any source to inspect the rule or administrative explanation directly.
DSS Child Support Guide
Version 5.00 · 1 July 2026
Organisation & pageWhat it supportsPage reviewedLink
Services AustraliaLearning about child support
Purpose of child support; assessment and self-management options; cash and non-cash agreements.
17 June 2026
Checked 2 Aug 2026
Department of Social ServicesChild Support Guide 1.1.C.210 — Costs of the child
How the scheme’s standardised costs recognise income, child count and ages.
2 January 2025
Checked 2 Aug 2026
Department of Social ServicesChild Support Guide 1.1.C.200 — Cost percentage
How care is recognised in the formula through a cost percentage.
2 January 2025
Checked 2 Aug 2026
Services AustraliaPaying child support by non-agency payments
Agreed and prescribed non-agency payments, conditions and credit limits.
20 November 2024
Checked 2 Aug 2026
Services AustraliaChanging your assessment in special circumstances
Application process and expense-related reasons that may be considered.
13 May 2025
Checked 2 Aug 2026
Department of Social ServicesChild Support Guide 5.2 — Reasons for a change of assessment
The requirement for special circumstances and one or more recognised reasons.
Guide version 5.00 · 1 July 2026
Checked 2 Aug 2026
Department of Social ServicesChild Support Guide 5.2.5 — Money, goods or property
Periodic payments, spending discretion and when payments outside an assessment may matter.
12 May 2025
Checked 2 Aug 2026
Services AustraliaLimited child support agreement
Requirements for limited agreements and the cash or non-cash items they can include.
10 December 2021
Checked 2 Aug 2026
Services AustraliaBinding child support agreement
Requirements for binding agreements, including independent legal advice.
21 December 2022
Checked 2 Aug 2026
An AusChildSupport Estimate is not a Formal Assessment. Services Australia issues Formal Assessments. This page is general information and is not legal or financial advice.