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№ 77 Family Law

How to File for Divorce in New Brunswick: Step-by-Step Guide

Learn the steps to file for divorce in New Brunswick, from the one-year rule to the Rule 72 forms used in the Court of King's Bench, Family Division.

Family Law4 min readTSLBy the Treadstone Law Team · New BrunswickUpdated November 1, 2026
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Key takeaways
  • Divorce in New Brunswick is handled by the Court of King's Bench, Family Division, using the Rule 72 forms.
  • You can file alone with Form 72A or together with your spouse using the Joint Petition, Form 72B.
  • A divorce does not by itself settle every issue, so parenting, support and property deserve attention early.

Ending a marriage involves a legal process with its own forms and sequence. If you are ready to start, it helps to know what the court needs, who files what, and what happens if your spouse does not agree.

This article walks through the process in plain terms for New Brunswick. It is general information, not advice for your situation, and the details of your case can change the steps.

This article covers the law of New Brunswick.

Check that you can file in New Brunswick

Under the federal Divorce Act, a court may grant a divorce on the ground that the marriage has broken down. The usual way to show this is that you and your spouse have lived separate and apart for at least one year immediately before the divorce is decided.

There is also a residence requirement. A court in a province can hear a divorce if either spouse has lived in that province habitually for at least one year immediately before the proceeding starts.

There is an exception to the one-year wait. Breakdown can also be shown where the other spouse has committed adultery or treated you with physical or mental cruelty that makes living together intolerable.

Decide between a joint or a single filing

Divorce proceedings in New Brunswick are in the Court of King's Bench, Family Division, and use the Rule 72 forms. Your first choice is how to start.

RouteFormWhen it fits
Joint filingForm 72B, Joint Petition for DivorceSpouses who agree and file together
Single filingForm 72A, Petition for Divorce, then Form 72C, Notice of Petition for DivorceOne spouse starts the case and serves the other

Your spouse's signature or agreement is not a condition of the one-year ground, so a divorce can proceed on one spouse's petition even if the other does not cooperate. Agreement matters mainly for a joint petition.

The steps from start to finish

The exact steps depend on whether the divorce is joint or contested, and the court's current instructions should be checked before you file. In general, the forms follow this order.

What the court checks before granting a divorce

The judge does not simply sign off on the forms. If there are children of the marriage, the court must be satisfied that reasonable arrangements have been made for their support. The court must dismiss the application if there was collusion in presenting it. The Divorce Act also puts a duty on the court to consider the possibility of reconciliation.

Parties are also expected to try to resolve the issues that may be the subject of an order, including through family dispute resolution processes, to the extent appropriate.

What to do next

A divorce ends the marriage, but parenting, support and property are separate questions. The Family Division also handles Family Law Act matters such as parenting and support. For married spouses, property is divided under the Marital Property Act, and an application for division must generally be made within sixty days after a divorce takes effect, though the Court can extend that time in limited situations. Because that window is short, raise property early.

Frequently asked questions

Can I get a divorce if my spouse will not sign?

Generally yes. The one-year separation ground does not make your spouse's signature or agreement a condition, so one spouse can petition and the court decides once the separation is proved. Agreement is relevant mainly to a joint petition.

Which court handles divorce in New Brunswick?

Divorces are handled by the Court of King's Bench, Family Division, using the Rule 72 forms. The same Division handles Family Law Act matters such as parenting and support.

What if my spouse disagrees with the divorce?

The forms allow your spouse to file an Answer, or an Answer and Counter-Petition, and you may reply. The divorce then continues toward a Request for Divorce and a judgment.

Do I have to wait a year before I file?

The one-year separation is the usual ground, and it must be met by the time the divorce is decided. The exceptions are adultery or cruelty that makes living together intolerable. Speak to a lawyer about how timing works in your case.

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. New Brunswick 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 lawyer who practises in New Brunswick. Reach us at 1-844-900-1070 or send our Team a message.

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