Separation agreements in Ontario: what to prepare before you sign

A separation agreement is a type of "domestic contract" under Ontario's Family Law Act. It records decisions two separated partners have made together. Married and common-law couples can both use one.

A few things it is not:

• It is not a divorce. A married couple who signs a separation agreement is still legally married. Ending the marriage requires a divorce order from a court. Many couples use the separation agreement to settle everything else, then apply for a divorce separately.
• "Legal separation" is not a separate status in Ontario. People often search for "legal separation papers," but there is no government form that makes a separation official. Separation happens when two people start living separate lives; the agreement is how they put their arrangements in writing.
• It is not automatically fair. A court can review, and in some cases set aside, an agreement that was made without proper disclosure or understanding.

Every situation is different, and people can agree to terms that fit their family. Agreements commonly deal with:

• Parenting: decision-making responsibility, parenting time and schedules, holidays, travel, and how future disagreements will be handled
• Child support: the monthly amount and how special or extraordinary expenses (childcare, activities, medical costs) are shared
• Spousal support: whether it is paid, how much, and for how long, or a release of spousal support
• Property: for married spouses, how the net family property equalization is handled; for everyone, who keeps what (vehicles, accounts, household contents)
• The home: whether it is sold, bought out, or kept for a period of time
• Debts: who is responsible for which loans, credit cards and lines of credit
• Pensions, RRSPs and insurance: division of retirement savings and life insurance to secure support
• Future changes: how and when terms will be reviewed

Married vs. common-law matters. Ontario's property division rules (the equalization of net family property) apply to married spouses. Common-law partners are generally treated differently for property, though support rules can still apply. This is one of the areas where the difference between couples is significant enough to get legal advice.

For a separation agreement to be enforceable in Ontario, the Family Law Act (s. 55(1)) says it must be:

1. In writing
2. Signed by both parties
3. Witnessed

Ontario courts have sometimes enforced agreements that were missing a formality, such as a witness signature, where there was no unfairness in how the agreement was made. That is a case-by-case exception, not something to rely on. Following all three requirements avoids the question entirely.

Both partners are expected to share complete and honest information about their finances before signing: income, assets, debts, and supporting documents such as tax returns, pay stubs, bank and investment statements, pension statements and mortgage information.

This matters because under the Family Law Act (s. 56(4)) a court can set aside a domestic contract if:

• a party failed to disclose significant assets, debts or other liabilities that existed when the agreement was made, or
• a party did not understand the nature or consequences of the agreement, or
• there is another reason under the general law of contract.

Disclosure can be organized in a spreadsheet or on the court's Form 13.1 Financial Statement (Property and Support Claims), which lists all assets and debts. If the matter ever goes to court and property is being divided, Form 13.1 is required.

Child support is treated as the child's right, not something parents can simply trade away. Courts can look closely at child support terms in an agreement, especially amounts that fall below what the Federal Child Support Guidelines would provide. Most agreements use the Guidelines tables as the starting point.

Spousal support is different: there are no mandatory tables. The Spousal Support Advisory Guidelines (SSAG) produce a range, which lawyers and courts commonly use as a reference point in negotiation. The OkayDivorce support calculator shows an approximate SSAG range.

If an agreement includes child or spousal support, either person can file it with the court so the support terms can be enforced like a court order. In Ontario this is done with Form 26B: Affidavit for Filing Domestic Contract or Paternity Agreement, filed at the Ontario Court of Justice or the Family Court branch of the Superior Court of Justice.

Once filed, the agreement can be registered with the Family Responsibility Office (FRO), which collects and forwards support payments and can take enforcement steps if payments stop. Before filing, sensitive numbers such as social insurance numbers and account numbers should be blacked out.

It is possible to negotiate an agreement without a lawyer, and many couples work out the terms themselves or through mediation. Getting independent legal advice before signing is still strongly recommended, and it becomes especially important when:

• one person owns a business, a pension, or significant investments
• there is a matrimonial home with equity, or property owned before the marriage
• spousal support is being released or is likely to be significant
• there has been family violence, intimidation, or a large imbalance in financial knowledge
• one person is being pressured to sign quickly
• the couple was common-law and property is jointly used but not jointly owned

Independent legal advice means each person talks to their own lawyer. It helps show that both people understood the agreement, which is one of the grounds a court looks at if the agreement is challenged. Many Ontario lawyers offer this as a limited, flat-fee service.

People who walk into negotiation or a lawyer's office organized tend to spend less time, and less money, getting to a signed agreement. A practical preparation list:

1. Your date of separation and how you would describe it
2. Two to three years of tax returns and current pay information for both people
3. A full list of assets and debts on the date of marriage (if married) and the date of separation, with statements
4. Pension and RRSP statements
5. Home value and mortgage balance
6. Monthly budget of current and expected expenses
7. Children's expenses: childcare, activities, medical, education
8. A draft parenting schedule you could live with
9. Your list of priorities and non-negotiables, and what you think matters most to the other person
10. Questions for a lawyer, written down before the first meeting

The OkayDivorce free assessment helps sort out which of these you already have and what to tackle first, and the Form 13.1 builder walks through the financial statement section by section.