resources
Can You Get Child Support If You Were Not Married?
Editor
04 Feb 2026

When relationships end, parental responsibilities continue - regardless of whether you wore a ring or signed a marriage certificate. Many unmarried parents wonder if they're eligible for financial support from their child's other parent. In Australia, the answer is a resounding yes! Testart child support lawyers confirm that marital status has no bearing on child support eligibility.
Key Takeaways
- Child support in Australia is available regardless of whether parents were married, in de facto relationships, or never in a formal relationship
- Eligibility depends on legal parentage, which can be established through birth certificates, voluntary declarations, or DNA testing if necessary
- Services Australia manages the Child Support Scheme through administrative assessments based on both parents' incomes and care arrangements
- Private agreements are possible but must be properly documented to be legally enforceable
- Applications can be made online through Services Australia with supporting documentation
Child Support Eligibility for Unmarried Parents
Australian law makes no distinction between married and unmarried parents when it comes to child support obligations. If you're a biological or adoptive parent, you have financial responsibility for your child until they turn 18, regardless of your relationship status with the other parent.
This applies to:
- Former de facto partners
- Casual relationships that resulted in children
- Same-sex parents
- Legal guardians in some circumstances
The basic eligibility criteria focus on establishing legal parentage and care arrangements - not marital history.
Legal Framework for Child Support
The Child Support Scheme operates under the Child Support (Assessment) Act 1989 and the Child Support (Registration and Collection) Act 1988. These laws create a framework that prioritises children's financial needs above relationship status.
Services Australia (formerly the Department of Human Services) administers the scheme, handling assessments, collections and transfers between parents. They work alongside the family court system but handle most standard cases administratively without court involvement.
"The Australian child support system is designed to ensure children receive financial support from both parents, whether they were ever married or not. What matters is establishing legal parentage and appropriate financial contribution." - Testart Family Lawyers
Establishing Parentage
Before child support can be arranged, legal parentage must be established. For most cases, this is straightforward through:
- Birth certificates: When both parents are named on a birth certificate, this generally establishes legal parentage.
- Voluntary acknowledgement: A parent can voluntarily acknowledge parentage for child support purposes.
- DNA testing: If parentage is disputed, DNA testing providing 99.9% certainty can be ordered.
- Court declaration: The court can make a declaration of parentage based on evidence.
For unmarried parents, establishing parentage might require an extra step if the father isn't listed on the birth certificate, but the process is routine.
Application Process
Applying for child support as an unmarried parent is straightforward:
- Create a myGov account linked to Services Australia
- Complete the online child support application
- Provide required documentation (birth certificates, proof of identity)
- Supply income details and care arrangements information
- Choose between private collection or Services Australia collection
Applications typically process within 28 days if all information is provided. There's no fee for standard applications.
How Payments Are Calculated
Child support calculations follow the same formula for all parents - married or not. The assessment considers:
- Both parents' incomes: Taxable income minus a self-support amount
- Care percentage: The percentage of nights the child spends with each parent
- Number and ages of children: Different costs apply for different age groups
- Other dependents: Adjustments for other children you support
The formula balances these factors to determine a fair contribution from the paying parent. Shared care arrangements (where both parents have the child at least 35% of the time) lead to adjusted calculations.
Enforcement and Collection Options
Once assessed, child support can be collected through:
- Private collection: Parents arrange transfers between themselves
- Services Australia collection: The agency collects from the paying parent and transfers to the receiving parent
If payments aren't made, enforcement measures include:
- Income deductions: Directly from wages or Centrelink payments
- Tax refund interception: Redirecting tax refunds to cover child support debt
- Departure prohibition orders: Restricting international travel until debts are addressed
These enforcement options apply equally to all parents, regardless of previous marital status.
Practical Advice for Unmarried Parents
To navigate child support smoothly:
- Keep detailed records: Document all payments made or received
- Update your details: Report income or care arrangement changes promptly
- Use mediation: Family Relationship Centres can help negotiate agreements
- Get professional guidance: Legal advice early can prevent costly mistakes
- Consider a binding agreement: For more complex situations, formal agreements offer certainty
Community legal centres often provide free initial consultations on child support matters.
Conclusion
Australian law recognises that children deserve financial support from both parents, regardless of marriage certificates or relationship status. The Child Support Scheme provides a structured, fair system for determining appropriate contributions based on income, care arrangements and children's needs - not past relationship status.
If you're an unmarried parent seeking support for your child, you have the same rights as anyone else under Australian law. For complex situations or high-conflict cases, Testart Family Lawyers can provide tailored advice to protect your children's financial interests while navigating the system effectively.







