The only legally accepted reason to get a divorce in Australia is that the marriage has broken down irretrievably. This means that the court must be satisfied that you and your spouse lived separately and apart for a period of 12 months immediately before the date of applying for a divorce order. If you want to separate but continue to live together in the same home for financial, parenting, or other reasons, this is called ‘separation under the same roof’.
Separation under the same roof does not just mean sleeping separately. The Federal Circuit and Family Court of Australia (FCFCOA) requires evidence that either you or your spouse said the relationship was over and, from that time, you did not act like a married couple, but you behaved like a separated person both inside and outside the home.
If you and your spouse have lived at the same address for some, or all of, the 12 months immediately before applying for divorce, you will need to also provide two affidavits describing your separation when you file your application for divorce. An affidavit is a written statement of evidence.
If you are still living at the same address at the time you apply for divorce, you will need to explain what your plans are for living arrangements in the future.
If you are both living at the same address at the date of your divorce hearing or intend to keep living in the same home, the court might not grant your divorce.
The FCFCOA cannot grant a divorce order if there is a reasonable likelihood that your relationship will resume.
In your application for divorce, you will need to record the date of your separation as well as any periods of time that you lived in the same house as your spouse, since the separation date.
The court will need two affidavits to confirm you and your spouse were truly separated while still living together under the same roof.
Each person who writes an affidavit must be prepared to come to court. They may be examined about the truth of their statement if the court requests this.
You must file the affidavits at the court registry counter or electronically on the Commonwealth Courts Portal. For more information about how to do this, see Factsheet 4: Filing your divorce documents online.
| If you are applying on your own (sole application for divorce) | If you and your spouse are applying together (joint application for divorce) |
|---|---|
You must prepare and file two affidavits:
You must serve both affidavits on your spouse with your divorce documents. | You must prepare and file at least two affidavits. This can be:
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An affidavit is your evidence put in a written statement which explains that you and your spouse have been living separately under the same roof. It must explain what the relationship was like before the separation date and how it changed after your separation date.
Each marriage is different, so the information needed to prove that you were separated under the same roof will be different in each case. This sample affidavit has many possible sentences. Delete any that are not appropriate and include more information where necessary. You are the Applicant and your spouse is the Respondent.
Our marriage before separation:
Marriage after separation:
Describe what happened on your date of separation. Did you have an argument on the telephone? Did you have a discussion and decide how to tell the children and family and friends? Were police or family members involved on that day? Did you write text messages or emails saying the marriage had ended? State the facts as best as you can remember. If you are reporting a conversation use direct language, e.g.
On [date], [Respondent] and I were at [location] and I remember we had a conversation with words to the effect of:
Me: “This isn’t working, our marriage is over.”
[Respondent]: “I agree. I will move my stuff into the spare bedroom until I can find my own place.”
Use the words that you each said (as far as you can remember) to show that you believed each of you knew the marriage ended on that date.
Then, explain how the relationship changed from what it was before. For example:
Also describe when you or the other person moved out. For example:
Or, if you can’t move, explain why you are still living under one roof.
You will need another person’s affidavit to support your statement about living separated under the same roof. If you are making a joint application for divorce, the second affidavit can be from your spouse. If you are making a sole application, you could ask any person over 18 years old. This can be a friend, family member, co-worker or any other person who has known you during the marriage and after the separation.
The third party or witness will have to explain in their affidavit what they experienced themselves, first hand, about you and your spouse’s separation.
This template guide affidavit has many sample sentences. Delete any that are not appropriate, and include more information where necessary.
Describe how you met the [Respondent] and, if you attended the wedding, and how often you spent time with the couple after they were married. For example:
Describe what you have personally seen, heard or been told about the separation. For example:
LawAccess NSW is a free information service run by Legal Aid NSW. Anyone who has a legal problem in NSW can contact LawAccess NSW for legal help.
Start a web chat or call 1300 888 529 between 9am and 5pm, Monday to Friday (excluding public holidays).
If you need help from a lawyer, the first step is to contact our team at LawAccess NSW. They can tell you if you are eligible and book an appointment for you to speak with a lawyer if you are.
This is a free step-by-step interactive guide from Legal Aid NSW to help you apply for a divorce in Australia which includes ‘how to’ videos, checklists and links that will help apply for a divorce.
Visit the Do you own divorce website.
For more information, you can also visit the Divorce section of our website.
The Early Intervention Unit is a Legal Aid NSW specialist service resolving family law issues before they get serious. They provide free family law services at courts and community organisations throughout NSW.
Call the Early Intervention Unit on 1800 551 589.
You can get further information about court processes, forms, publications and Do-It-Yourself kits on the FCFCOA website.
You can also visit the FCFCOA enquiries hub to speak with someone via live chat or submit an enquiry. If your matter is urgent or requires time critical intervention, call 1300 352 000.
Public libraries have computers and scanners. You will need to make an appointment. See the NSW public library directory.
You can download this factsheet as a PDF in English.
This factsheet is part of the Divorce series, which explains how to complete and file your divorce application, including separation under one roof, and how to serve your divorce documents on your ex‑partner.
Updated October 2025