Describe your situation in plain language. SignAI generates a complete, Ontario-compliant Marriage Contract — then sign and send it to your partner. No templates, no lawyers, no hassle.
Prenuptial Agreement
Province of Ontario
60s
Average creation time
$0
Free to create & sign
100%
100% Legally binding in ON
0
Templates to search
In Ontario, prenuptial agreements are called "marriage contracts" and are governed by the Ontario Family Law Act (FLA), R.S.O. 1990, c. F.3, Part IV (§§51–60). Under the FLA, married spouses are entitled to an equalization of net family property upon separation — meaning the spouse with more net family property pays half the difference to the other. A marriage contract lets you modify or opt out of this equalization framework.
Whether you're a Toronto Bay Street executive with stock options, a tech entrepreneur in Kitchener-Waterloo's growing startup corridor, or an Ottawa couple with federal government pensions, an Ontario marriage contract gives you control over how property is divided. Ontario's equalization system is one of the most structured in Canada, and a marriage contract is the primary tool for customizing it.
SignAI generates your Ontario marriage contract with proper legal language — including compliance with the Family Law Act's formal requirements (written, signed, witnessed), equalization considerations, and provisions that Ontario courts will recognize and enforce.
How it works
No templates, no forms, no lawyers. Just describe what you need.
Type something like "I need a Prenup for Ontario" — no legal jargon needed. Answer a few quick follow-up questions and you're done.
AI generates a complete, Ontario-specific Prenup in seconds — with proper headings, numbered sections, and signature blocks. Edit anything you want, then type your name to sign.
Enter the other party's email and hit send. They review and sign without creating an account. Both parties get a copy. Done.
What's included
Every Prenup generated by SignAI for Ontario includes these essential provisions — automatically.
A detailed schedule of each party's assets, debts, and net family property at the date of the contract — the foundation for Ontario's equalization calculation.
Provisions modifying Ontario's default equalization of net family property, defining which assets are included or excluded from the calculation.
Provisions addressing spousal support under the FLA and the Divorce Act. Ontario courts may override support waivers in limited circumstances.
Full financial disclosure for both parties — Ontario courts require honest and complete disclosure for the contract to be enforceable.
Clauses addressing the matrimonial home — note that under the FLA, you cannot contract out of possessory rights to the matrimonial home during marriage.
Governing law clause specifying Ontario jurisdiction and compliance with the Family Law Act, R.S.O. 1990, c. F.3.
Use cases
People in Ontario use SignAI to create Prenups for a wide range of situations. Here are the most popular:
Protect investment banking compensation, stock options, and financial industry assets from equalization claims. Toronto's Bay Street is Canada's financial center.
Try it: “I need a marriage contract to protect my Bay Street compensation before getting married in Toronto”
Shield startup equity and tech company stock from net family property equalization. Kitchener-Waterloo and Toronto are Canada's top tech hubs.
Try it: “I have startup equity in Waterloo and need a marriage contract before my wedding”
Define how investment properties are treated in the equalization calculation — keeping pre-marital real estate gains separate.
Try it: “I own rental properties in Toronto and need a marriage contract before getting married”
Preserve assets for children from a prior marriage while entering a new relationship with defined financial terms.
Try it: “I'm getting remarried in Ottawa and want a marriage contract to protect my children's inheritance”
FAQ
Yes. Marriage contracts are governed by the Ontario Family Law Act, Part IV (§§51–60). To be enforceable, the contract must be in writing, signed by both parties, and witnessed. Ontario courts may set aside a contract if a party failed to disclose significant assets, didn't understand the contract, or if it's unconscionable.
Under the FLA (§5), when a marriage ends, each spouse calculates their net family property (assets minus debts, minus value at marriage). The spouse with the higher net family property pays half the difference to the other. A marriage contract can modify or eliminate this equalization right.
You can include spousal support provisions in an Ontario marriage contract, but courts retain the power to override support waivers under the FLA (§33) and the Divorce Act if a party would become dependent on public assistance or if the waiver results in unconscionable circumstances.
Partially. Under the FLA (§52(2)), a marriage contract cannot restrict a spouse's possessory rights to the matrimonial home during the marriage. However, it can address how the home's value is treated in the equalization calculation and who keeps it upon separation.
Yes. Under the FLA (§55(1)), a marriage contract must be in writing, signed by both parties, and witnessed. The witnessing requirement is mandatory — without a witness, the contract may be unenforceable. Each party should have their signature witnessed.
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