- Ontario's Family Law Act treats every marriage as its own, separate accounting period.
- The general framework doesn't change just because it's a second (or third) marriage, but it's worth seeing how it applies to assets carried over from an earlier chapter of your life.
- Many second-marriage couples come into the relationship with adult children, family businesses, or specific assets they want to preserve for the next generation rather than share with a…
If this isn't your first marriage, you probably assume the assets you brought with you — the home you already owned, the retirement savings you built up, the things you think of as "already yours" — are safe. That assumption can be wrong. Ontario's rules for property division on a second marriage don't care how many times you've been married before. They apply fresh, from your wedding day forward, as though this marriage were the only one that mattered.
That surprises a lot of people who remarry later in life, often with grown children, established careers, and assets they've spent decades accumulating. Understanding how equalization actually works the second time around — and what a marriage contract can and can't do about it — is the difference between protecting what you've built and putting it all back on the table.
Equalization Starts Over, Not Where You Left Off
Ontario's Family Law Act treats every marriage as its own, separate accounting period. When you remarry, the equalization calculation resets: what matters is the growth in each spouse's net worth between the date of this marriage and the date you and your current spouse eventually separate.
It generally doesn't matter that a house, a pension, or an investment account came from your first marriage, a prior divorce settlement, or years of saving before you ever met your current spouse. If you still own it on your wedding day, its value at that date typically becomes your starting point for this marriage — but growth in that value during the marriage is generally treated the same way it would be in a first marriage.
What Counts as Yours, Theirs, and Ours
The general framework doesn't change just because it's a second (or third) marriage, but it's worth seeing how it applies to assets carried over from an earlier chapter of your life.
| Situation | How it's generally treated |
|---|---|
| An asset you already owned before this marriage | Its value on your wedding day is typically credited back to you — but growth during the marriage is generally shared |
| A home you owned before the marriage that becomes the family's matrimonial home | No credit for its pre-marriage value — the "no date-of-marriage deduction" rule applies specifically to the matrimonial home |
| An inheritance or gift from a third party received during this marriage | Generally excluded from equalization, unless it's been mixed into shared property or used toward the matrimonial home |
| A pension or investment account carried over from your first marriage | Its value at the date of this marriage is generally the relevant starting point, not its value when you first acquired it years earlier |
The matrimonial home rule catches a lot of second-marriage couples off guard. If you owned a house before you remarried and your new spouse moves in and it becomes the family home, you may not get credit for the value it had before the wedding — even though you owned it outright long before you met.
Why a Marriage Contract Matters More the Second Time
Many second-marriage couples come into the relationship with adult children, family businesses, or specific assets they want to preserve for the next generation rather than share with a new spouse. A marriage contract — sometimes called a prenuptial or cohabitation agreement depending on timing — is the main legal tool for doing that.
Under the Family Law Act, a domestic contract is enforceable if it's in writing, signed by both spouses, and witnessed. It doesn't need to be approved by a court to be valid, and it can be signed before the wedding or during the marriage.
What a marriage contract can typically address
- Which assets — a business, a family cottage, an inheritance — stay outside equalization regardless of how much they grow in value
- How you'll handle a home one of you already owns going into the marriage
- Financial disclosure obligations between you and your spouse
- Support arrangements, within the limits the law allows
A well-drafted contract is especially valuable when there are children from a prior relationship whose inheritance you want to protect. Without one, the default equalization rules apply regardless of your intentions.
Common Mistakes Second-Marriage Couples Make
- Assuming premarital assets are automatically untouchable. They aren't — only their value at the date of marriage is generally protected, and even that protection doesn't extend to the matrimonial home.
- Renovating or refinancing a pre-marriage asset without thinking it through. Using shared funds or an inheritance to improve a property can blur the line between what's excluded and what isn't.
- Relying on a verbal understanding instead of a written contract. An informal agreement between spouses, however sincere, isn't a domestic contract and generally won't be enforced as one.
- Skipping independent legal advice. Each spouse getting their own lawyer to review a marriage contract is standard practice — it's what makes the agreement harder to challenge later.
Frequently asked questions
Does it matter that we're both older with grown children from our first marriages?
Not for the mechanics of equalization itself — the law doesn't create a different formula for later-in-life remarriages. It does, however, make a marriage contract more important, since you may want to protect specific assets for your own children rather than share their growth with a new spouse.
If I bring a paid-off house into the marriage, can I lose it in a divorce?
You won't lose title to the home just by marrying, but if it becomes the family's matrimonial home, its value at the date of marriage generally isn't protected the way other assets are. Growth in its value during the marriage — and potentially its full value — can be shared.
Can we sign a marriage contract after the wedding?
Yes. A domestic contract signed during the marriage is still a marriage contract under the Family Law Act, as long as it's in writing, signed, and witnessed. Many couples sign or update one well after the wedding date.
Do both spouses need their own lawyer for a marriage contract?
The law doesn't list independent legal advice as a strict formality, but it's strongly recommended practice. A contract signed without each spouse understanding it, with the benefit of their own lawyer's advice, is far more vulnerable to being challenged later.
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