What is child support in Australia? A complete guide for Mackay, Proserpine and Beaconsfield

Separation is hard enough without trying to untangle what child support actually is, what it pays for, and how it connects to your parenting arrangements. Whether you live in Mackay, Proserpine, Andergrove or Beaconsfield, the rules are the same wherever you are in Queensland, because child support is governed by Commonwealth law, not state law.

This guide explains what child support is, what it is supposed to cover, how it is calculated, and how parenting plans, consent orders and parenting orders fit into the picture. At Family Lawyers Mackay, our Legal Practice Director Ian Field, an Accredited Specialist Family Lawyer, has spent years helping separated parents across Mackay and the surrounding region get these arrangements right the first time.

What is child support?

What is child support, in simple terms? It is a financial contribution paid by one parent (or sometimes both) to help cover the cost of raising a child after separation. It is governed federally by the Child Support (Assessment) Act 1989 (Cth) and the Child Support (Registration and Collection) Act 1988 (Cth), and administered by Services Australia.

Child support can be paid to the other parent or to a non-parent carer, such as a grandparent or legal guardian, who has primary day-to-day responsibility for the child. Both biological and legal parents have an ongoing duty to financially support their children, regardless of how much time they actually spend with them.

What is child support used for?

What is child support used for, and what is child support supposed to cover? The receiving parent has discretion over exactly how the money is spent, and there is no requirement to provide itemised receipts. In practice, child support payments generally go towards:

• Housing costs, including rent, mortgage repayments and utilities
• Food, clothing and everyday essentials
• Transport to school, sports, and medical appointments
• Public school fees, uniforms, textbooks and excursions
• Routine healthcare, including GP visits, vaccinations and prescriptions
• Extracurricular activities that both parents have agreed to, or that the child was already doing before separation

What child support typically does not cover includes private school fees, expensive or newly started extracurricular activities that haven’t been agreed to, luxury purchases, and major elective medical procedures. If you want private school fees or a significant non-routine expense covered, this generally needs to be documented in a formal child support agreement rather than assumed.

What Is Child Support in Australia: How Is It Worked Out?

What is child support in Australia based on, mathematically? Services Australia applies an eight-step formula under the Child Support (Assessment) Act 1989 (Cth). The key building blocks are:

1. Adjusted taxable income. Each parent’s taxable income, plus items like reportable fringe benefits, reportable superannuation contributions and certain foreign income.
2. The self-support amount. A fixed amount is deducted from each parent’s income before anything else is calculated, on the basis that every parent needs to support themselves first. For child support periods in 2026, this amount is $31,046.
3. Costs of Children tables. Services Australia publishes tables estimating the cost of raising children at different combined income levels, updated each year.
4. Care percentage. How many nights per year the child spends with each parent significantly changes the outcome. A parent with at least 14 per cent care (roughly 52 nights a year) starts to receive a cost credit that reduces their liability.
5. Minimum and fixed rates. Where the formula produces a very low figure, a paying parent generally pays at least the minimum annual rate, which is $551 for child support periods starting on or after 1 January 2026. A separate fixed annual rate of $1,825 per child per year (capped at three children) can apply to some low-income parents who are not on income support and have below-regular care.

Importantly, even parents with no current contact with their child remain obligated to pay child support, and equal time does not automatically mean no child support is payable, particularly where there is a significant income gap between parents.

What Is a Binding Child Support Agreement?

What is a binding child support agreement, and how is it different from simply accepting the Services Australia formula? Under the Child Support (Assessment) Act 1989 (Cth), parents can choose to step outside the standard formula by entering into a private agreement instead. There are two types:

• Limited child support agreements (section 80E) can be made without independent legal advice, but they must sit alongside an existing administrative assessment and generally can’t be enforced if a parent’s circumstances change significantly.
• Binding child support agreements (section 80C) offer far more flexibility, including lump sum payments or property transfers instead of regular payments, but each parent must obtain independent legal advice before signing, and the agreement cannot generally be varied once it is registered, only terminated and replaced.

Skipping the independent legal advice step on a binding agreement is one of the most common mistakes we see, because it can leave a parent locked into an agreement that doesn’t reflect their actual circumstances, with very limited options to change it later.

How Parenting Arrangements Affect Child Support

Child support and child custody arrangements are closely linked because the care percentage is a direct input into the child support formula. This is where parenting agreements come in.

What Is a Parenting Plan?

A parenting plan is a written, signed agreement between parents about living arrangements, schooling, health decisions and how time is shared, made under section 63C of the Family Law Act 1975 (Cth). It doesn’t need court approval, but it also isn’t legally enforceable on its own. We’ve covered this in full detail, including a step-by-step parenting plan guide and a practical parenting plan template you can adapt to your family. For a broader look at how a parenting agreement plan fits alongside consent orders and parenting orders, see our ultimate guide to parenting agreement plans.

Consent Orders and the Application for Consent Orders

A consent order takes a parenting plan (or any other agreement) and turns it into a court order, without requiring a contested court hearing. Once an application for consent orders is approved by the court, the terms become legally enforceable in the same way as orders made after a full hearing. This is often the middle ground separated parents look for: an agreement they have shaped themselves, with the added protection of legal enforceability if circumstances later turn sour.

Parenting Orders

Where parents cannot agree, either party can apply to the court for parenting orders. Before doing so, parents are generally required to attempt family dispute resolution, unless there are safety concerns such as family violence. The court then decides parenting arrangements itself, guided by what is in the best interests of the child, and the resulting parenting orders are legally binding on both parents.

Updated Law: What Changed for Parenting Arrangements in 2024

If you’ve researched parenting arrangements before, you may have read that there is a presumption of equal shared parental responsibility in Australian family law. That is now outdated. The Family Law Amendment Act 2023 (Cth) repealed that presumption (formerly section 61DA of the Family Law Act 1975) with effect from 6 May 2024.

Courts no longer start from the assumption that shared decision-making is automatically best. Instead, under the revised section 60CC, the court weighs six general considerations focused squarely on the child’s best interests, including the need to promote the safety of the child and anyone caring for them, the child’s own views, their developmental and emotional needs, each parent’s capacity to meet those needs, the benefit of a relationship with each parent where it is safe, and any other relevant circumstances. Where a parenting order grants shared decision-making, sections 61D(3) and 61DAA now require the parents to consult and genuinely try to agree on major long-term issues, but there is no longer any automatic link between shared responsibility and equal time.

This matters in practice because care percentage feeds directly into your child support assessment. Anyone relying on outdated assumptions about an “automatic” 50/50 starting point, whether for parenting time or for child support purposes, should get current advice rather than relying on how the law used to work before May 2024.

When Does Child Support End, and What Happens If It Isn’t Paid?

Child support generally continues until a child turns 18, although it can continue to the end of the school year if the child is still completing Year 12, or beyond 18 in some disability or chronic illness cases. Payments stop earlier if the child marries, enters a de facto relationship, or becomes self-supporting.

If child support isn’t paid, Services Australia has real enforcement powers, including charging interest on overdue amounts, deducting money directly from wages, tax refunds or Centrelink payments, garnishing bank accounts, and in serious cases issuing a Departure Prohibition Order to stop overseas travel. If you’re struggling to keep up with payments, the right move is to contact Services Australia about a reassessment, not to simply stop paying.

Why Talk to a Divorce Law Solicitor Before You Sign Anything

Whether you’re drafting a parenting plan, applying for consent orders, heading towards contested parenting orders, or negotiating a binding child support agreement, getting advice from an experienced divorce law solicitor early can prevent years of avoidable conflict and cost.

Ian Field, Legal Practice Director at Family Lawyers Mackay and an Accredited Specialist Family Lawyer, has practised family law in both the UK and Australia, holds certifications in mediation and collaborative practice, and has acted in some of Queensland’s first altruistic surrogacy applications. He takes a practical, sympathetic approach, helping clients across Mackay, Proserpine, Andergrove and Beaconsfield understand their real options rather than guessing at what a generic online template can offer.

If you need help understanding what child support means for your family, drafting a parenting plan, or applying for consent orders, contact Family Lawyers Mackay on (07) 4847 0198 or visit familylawyersmackay.com.au to arrange a consultation.

Frequently Asked Questions

What is child support?

Child support is a financial contribution one or both parents make to help cover the cost of raising their child after separation. It is governed by the Child Support (Assessment) Act 1989 (Cth) and administered by Services Australia, which calculates and can collect payments.

What is child support used for?

Child support generally covers housing, food, clothing, transport, public schooling costs and routine healthcare. The receiving parent decides how it is spent day to day, though it is not intended for private school fees or luxury purchases unless both parents have separately agreed.

What is a binding child support agreement?

A binding child support agreement is a private, legally enforceable arrangement under section 80C of the Child Support (Assessment) Act 1989 (Cth) that replaces the standard formula. Both parents must obtain independent legal advice before signing, and it can be flexible, including lump sums or property transfers.

What is a parenting plan?

A parenting plan is a written, signed agreement between parents about how they will care for their children, covering living arrangements, schooling and communication. It is not legally enforceable, but courts consider it as evidence if a dispute later arises.

What is the difference between a parenting plan and a parenting order?

A parenting plan is an informal agreement parents make for themselves, with no court involvement and no legal enforceability. A parenting order is made by a court, either by consent or after a hearing, and is legally binding, with real consequences for non-compliance.

What is an application for consent orders?

An application for consent orders asks the court to turn an agreement parents have already reached into a legally enforceable order, without a contested hearing. It is often used to formalise a parenting plan or financial agreement while avoiding the cost of full litigation.

How is child support calculated in Australia?

Child support is calculated using an eight-step formula that considers both parents’ adjusted taxable incomes, a self-support deduction, the number and ages of the children, and each parent’s care percentage. Minimum and fixed annual rates apply in some low-income situations.

When does child support stop?

Child support generally stops when a child turns 18, though it may continue until the end of Year 12 if the child is still at school. It can also end earlier if the child marries, enters a de facto relationship, or becomes financially independent.

Do I need a lawyer to make a parenting agreement?

You don’t legally need a lawyer for a parenting plan, but legal advice is strongly recommended, and is mandatory before signing a binding child support agreement or before finalising consent orders involving significant financial or property terms.

What happens if child support isn’t paid?

Services Australia can charge interest on overdue amounts, deduct money from wages, tax refunds or Centrelink payments, access bank accounts in serious cases, and issue Departure Prohibition Orders preventing overseas travel until the debt is addressed.

Learn more to know more about:

How to Apply for Full Custody
How to Create a Parenting Plan