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Paternity Testing and Parenting Rights in Ontario

Unsure who a child's legal parent is? Learn how parentage is decided in Ontario, how testing fits in, and how it affects parenting time claims.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • Legal parent status in Ontario depends on factors such as giving birth, partner status at the child's birth, Vital Statistics Act certification, or court recognition.
  • A court can recognize parentage under the Children's Law Reform Act, and a declaration of parentage is treated as effective from the child's birth.
  • Parenting time and decision-making are decided on the child's best interests, with family violence considered.
  • Whether and how a test is ordered, and who pays, depends on the facts and is worth confirming with a lawyer.

If you are a man unsure whether a child is yours, or a mother facing a claim you dispute, the question of a DNA test usually comes up early. People often assume a test settles everything, including parenting time.

This article explains, in general terms, how parent status is decided in Ontario, where testing fits, and how a parentage question connects to a claim for parenting time. The rules on testing in particular are detailed, so a lawyer should confirm what applies to you.

Parentage and parenting are two separate questions

Parentage asks who the child's legal parents are. Parenting asks how decision-making and time with the child will be arranged. How testing fits into either question depends on your situation, so it is worth confirming with a lawyer.

Ontario's guidance says parent status depends on factors such as giving birth, being the spouse or partner of the birth parent at the time of the child's birth, being certified under the Vital Statistics Act, or being recognized by a court under the Children's Law Reform Act.

How a court deals with a parentage dispute

Where parentage is in doubt or contested, a court can be asked to recognize parentage under the Children's Law Reform Act. A declaration of parentage is treated as effective from the child's birth. The court clerk then files a statement about the order with the Registrar General.

Testing is a detailed area of the law. Those details are best confirmed with a lawyer, because the section numbers and procedure have changed over time and your facts matter.

What a result means for parenting time

Parents have the right to parenting time unless a court decides otherwise. People who are not parents and who seek parenting orders need additional documents, such as a police record check and a Children's Aid Society report. Establishing parentage can therefore change what a person must show.

Once parentage is clear, if parents cannot agree, either can apply for a parenting order, and the judge must act in the child's best interests and consider family violence. Which statute applies depends on your situation: if a divorce has started or a Divorce Act parenting order exists, the Divorce Act applies, and otherwise the Children's Law Reform Act applies. Under the Divorce Act, only the child's best interests count, with primary consideration given to the child's physical, emotional and psychological safety, security and well-being.

QuestionWhat decides it
Who is a legal parentFactors such as birth, partner status at birth, Vital Statistics Act certification, or court recognition
Parenting time and decision-makingThe child's best interests, with family violence considered
Whether an arrangement can be enforcedA signed separation agreement or court order, not an informal plan

If you are the mother, or the man being asked to prove paternity

If you are the birth parent and a man is asking for parenting time, whether he is a legal parent is the first question, and a person who is not a parent needs additional documents to seek a parenting order. Once he is a parent, parents have the right to parenting time unless a court decides otherwise, and the court focuses on best interests. If safety is a concern, family violence is a factor the judge must consider. Family violence includes violent or threatening conduct, coercive and controlling behaviour, and conduct that makes a family member fear for their safety.

If you are the man being asked to take a test or to take on responsibilities, get advice before signing anything or agreeing to an informal arrangement. An informal plan can be hard to enforce. Without a written arrangement, enforcing rights is also harder.

Either way, informal arrangements may feel easier at first. A written parenting plan can be part of a separation agreement or court order. Where parties agree a parenting plan under the Divorce Act, the court must include it in the order unless it is not in the child's best interests.

What to do next

Frequently asked questions

Does a DNA test give me parenting time?

A test result is not the same as a parenting order. Parenting time is decided on the child's best interests, and the judge must consider family violence. Parents have the right to parenting time unless a court decides otherwise.

Can a court order a paternity test in Ontario?

Whether and how a court can order a test depends on the facts and the current rules. A lawyer can confirm what applies to your situation.

Is a declaration of parentage the same as a test result?

No. A declaration of parentage is a court order that is treated as effective from the child's birth. A court can recognize parentage under the Children's Law Reform Act.

What if I am not the biological parent but have raised the child?

Parent status depends on several factors, not only biology. A person who is not a parent but seeks a parenting order needs additional documents, such as a police record check and a Children's Aid Society report. A lawyer can explain how that applies to you.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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