- Ontario guidance says a spousal 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.
- Separation agreements are hard to change later, and Ontario guidance says each spouse should have their own lawyer review it.
- Badly worded child support terms can leave FRO unable to enforce them.
- If you do draft it yourself, get a lawyer to review it before you sign.
Lawyers cost money, and many separating couples who get along want to write the agreement themselves. That is a reasonable instinct, and nothing stops spouses from reaching their own deal. The problem is that mistakes in a separation agreement are often invisible until years later, when they are expensive or impossible to fix.
This article sets out the specific risks of a do-it-yourself agreement in Ontario and the minimum safeguards that reduce them. It is general information, not advice on your situation.
Why a DIY agreement can fail
Ontario guidance says a spousal 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. A homemade agreement often falls short on exactly these points: one spouse does not really see the other's finances, or signs quickly to end an argument.
Separation agreements are also hard to change later. Only a court can change a support order or domestic contract. To change a contract, the parties negotiate a new one and file it with the court. So an error you notice next year may not be easy to correct.
Specific risks to watch for
| Risk | Why it matters |
|---|---|
| Incomplete disclosure | Ontario guidance says a spousal support agreement made without full, honest disclosure can be set aside by a court |
| Property misunderstandings | Married spouses generally split property acquired during the marriage equally, and the full value of the family home is shared even if one spouse owned it before the marriage |
| Missed exclusions | Gifts, inheritances from someone other than the spouse, life insurance proceeds on a death and personal injury money can be excluded property, and the family home is the exception |
| Child support wording | FRO may be unable to enforce special expenses that are not set out as a fixed amount or as expenses the recipient claims on a sworn statement of arrears |
| Not registered | FRO enforces a separation agreement only if it is registered with the court |
Child support terms are a common trap. Ontario drafting guidance says to use the word "pay" rather than "share" for special expenses. It warns against wording that child support changes each year "in accordance with the Child Support Guidelines", because FRO cannot recalculate support that way and may be unable to collect it. It also says cost-of-living (indexing) clauses are not permitted for child support and FRO cannot enforce them.
Spousal support has its own pitfalls. The amount depends on factors such as income differences, children and who cares for them, ages, roles during the relationship, health and ability to self-support. A free template will not weigh those factors for you.
Minimum safeguards if you go ahead
If you decide to draft your own agreement, these steps reduce the risk.
- Exchange complete financial disclosure. The financial statement forms are a useful checklist: Form 13 for support-only cases and Form 13.1 for cases involving property or debts.
- Exchange income tax returns. A spouse applying for child support must include every personal income tax return filed for the three most recent taxation years, which is the usual benchmark.
- Build in a yearly income update. On written request, a spouse must provide updated income documents, not more than once a year after the order is made.
- Give yourselves time. Avoid signing under pressure, and make sure you understand every term.
- Have each spouse get their own lawyer to review the agreement before signing.
Some people hire a lawyer only to review a finished draft instead of drafting it. That can keep costs down while still giving you a check on the terms, and it matches the guidance that each spouse should have the agreement reviewed.
Signing, witnessing and registering
Formalities matter. Ontario guidance says marriage contracts and cohabitation agreements must be signed by both partners in front of a witness, who also signs. Ask a lawyer to confirm the signing requirements for your separation agreement before you sign.
Registration decides whether FRO can enforce support. You file the agreement 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. Filing with the court allows enforcement through FRO.
What to do next
- Gather three years of tax returns and current pay information for both of you.
- Fill in the financial statement form that fits your case as a checklist.
- List your assets and debts as of the separation date, and note any gifts, inheritances or property owned before the marriage.
- Write child support terms using fixed amounts or sworn-statement language and the word "pay".
- Book a lawyer review of the draft before anyone signs.
- Plan how and when you will register the agreement with the court.
Frequently asked questions
Is a separation agreement valid without a lawyer?
Whether a particular agreement holds up depends on your situation, so it is worth confirming with a lawyer. For spousal support, Ontario guidance says an 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. Ontario guidance also says each spouse should have their own lawyer review a separation agreement.
Can we fix a DIY agreement later if we find a mistake?
Only a court can change a domestic contract. The parties negotiate a new contract and file it with the court using form 26B. Separation agreements are described as hard to change later.
Does FRO enforce a homemade agreement?
Only if it is registered. You file it with the court using form 26B and then send FRO the contract, the court-signed 26B and a completed registration package. Poorly worded child support terms may also be unenforceable by FRO.
Is there a lower-cost way to do this safely?
There is no single answer, but one common approach is to draft the terms yourselves and then have each spouse get legal review before signing. Costs and needs vary, so a lawyer can explain the options.
Sources
- Federal Child Support Guidelines (SOR/97-175), Justice Laws — Justice Laws (federal)
- Ontario.ca: Draft or change a child or spousal support order — ontario.ca
- Ontario.ca: Child and spousal support — ontario.ca
- Ontario.ca: Spousal support — ontario.ca
- Ontario.ca: Dividing property when a marriage or common law relationship ends — ontario.ca
- Ontario.ca: Guide to procedures in family court, Financial disclosure — ontario.ca
Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.
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