TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Licensed by the Law Society of OntarioFlat fees published upfrontWe reply to messages within 1 business daySign in
Home/Articles/Family Law
№ 77 Family Law

Separating While Still Living Together: Writing an Agreement

Can't afford to move out? Learn how separation under one roof is counted for divorce, how to document it and what to agree on in writing in Ontario.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
← All articles
Key takeaways
  • For a divorce, spouses are deemed to live separate and apart if they lived apart and at least one intended to live separately.
  • Divorce is granted on one ground, breakdown of the marriage, and living separate and apart for at least one year is one way to establish it.
  • A separation agreement is not a divorce and is not a step the Divorce Act requires.
  • Registering an agreement with the court using form 26B is what allows FRO to enforce it.

Many separated couples cannot afford two homes. If that is you, you may wonder whether you are really separated, when the clock starts on a divorce, and how to make decisions about money and children while you share a kitchen.

This article explains how living apart is counted under the Divorce Act, how to document your separation, and what an agreement made under one roof should cover.

Can you be separated in the same home?

For divorce, the Divorce Act deems spouses to live separate and apart for any period when they lived apart and at least one of them intended to live separately. That means the question is about your intentions and how you live, not only about two addresses.

One way to establish breakdown of the marriage is to live separate and apart for at least one year immediately before the divorce is determined, with the spouses still separated when the proceeding began. The Act's count is not interrupted by resumed cohabitation of up to 90 days aimed mainly at reconciliation.

That is the federal divorce rule. How Ontario's family property and support rules treat the date of separation can depend on the facts, so a lawyer should confirm which date applies to your situation.

How to document your separation

If you are still under one roof, evidence of your separation matters more, since nobody can point to a move-out date. A written record helps show when at least one of you decided to live separately.

If you later apply for divorce, a court can hear the application if either spouse has been habitually resident in the province for at least one year before the application. Only a court can grant a divorce.

What to agree on while sharing a home

A separation agreement is not a divorce and is not a step the Divorce Act requires. It is still useful, because it lets spouses divide property as they choose. Here is what a same-home agreement commonly needs to address.

TopicWhat to think about
Parenting timeParenting time may be allocated by a schedule, and the person with parenting time generally makes day-to-day decisions during that time unless a court orders otherwise.
Decision-makingResponsibility for significant decisions about a child's well-being may go to one spouse, both, or a combination.
Child supportA court must make a child support order in accordance with the applicable guidelines. Special expenses such as child care or extraordinary school costs can be added.
Spousal supportFactors include income differences, children and who cares for them, ages, roles and health.
Property and debtsMarried spouses generally share property acquired during the marriage equally. Common-law partners are not required to split it.
Household costsWho pays the mortgage or rent, utilities and food while you share the home, and for how long. Put an end date or trigger in writing.

Keeping the household calm and the children protected

Where appropriate, parties should try to resolve their matters through a family dispute resolution process such as negotiation, mediation or collaborative law. Parties must also protect any child from conflict, to the best of their ability.

Living together makes that harder. Agree on house rules in writing, such as who is home when, how you will communicate about the children, and what you will not discuss in front of them. If the shared parenting time is close to equal, note that the table child support amounts are not applied automatically where each spouse has not less than 40% of parenting time over a year. Which rule applies to your arrangement is worth confirming with a lawyer.

Making the agreement enforceable

A support agreement should be made with full, honest financial disclosure, without pressure, and with an understanding of its terms, or a court can set it aside. Each spouse should have their own lawyer review the agreement, since it is hard to change later.

FRO enforces a separation agreement only if it is registered. You file it with the Ontario Court of Justice or Superior Court of Justice using form 26B, then send FRO the contract, the court-signed 26B and a completed FRO registration package. If you need to change it later, you negotiate a new contract and file it with the court using form 26B.

What to do next

Frequently asked questions

Do we have to move out before we can divorce?

Not necessarily. Spouses are deemed to live separate and apart for any period when they lived apart and at least one intended to live separately. A lawyer can help you show that under your facts.

Do we need a separation agreement to get a divorce?

No. A separation agreement is not a step the Divorce Act requires, and only a court can grant a divorce.

What if we try to reconcile for a few weeks?

The one-year period is not interrupted by resumed cohabitation of up to 90 days aimed mainly at reconciliation. Keep a record of the dates.

Can FRO enforce our agreement?

FRO enforces a separation agreement only if it is registered, which involves filing it with the court using form 26B and sending FRO the required documents.

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.

This is a family law question

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →