Dying Intestate in Ontario With a Spouse but No Children: Who Inherits?

If you die without a will in Ontario, leaving a spouse but no children or other descendants, the answer to "who inherits" is more straightforward than in most intestacy scenarios. Ontario's default rules, which usually involve splitting an estate between a spouse and children, simplify considerably when there are no children in the picture. That doesn't mean a will is unnecessary — it just means this particular outcome tends to match what most couples would have wanted anyway.

The Short Answer

Where someone dies without a valid will, leaving a legally married spouse but no surviving children or other descendants, the spouse generally inherits the entire estate under Ontario's intestacy rules. There is no splitting of the estate with other relatives in this scenario — the spouse's inheritance is not reduced to make room for parents, siblings, or anyone else.

Why the Preferential Share Doesn't Come Into Play

Ontario's intestacy formula includes a "preferential share" — a set amount the surviving spouse receives off the top of the estate before anything is divided with surviving children. That mechanism exists specifically to protect the spouse's position when there are children to share the estate with. Where there are no children, there is nothing to divide the residue with in the first place, so the preferential share calculation simply doesn't apply — the spouse takes the whole estate directly.

What Counts as the "Estate" That Passes This Way

It's worth remembering that intestacy rules only apply to the "net estate" — generally, property that passes through the estate rather than by other means. A surviving spouse in this scenario may also already be receiving certain assets directly, outside the estate entirely, such as:

• Property held in joint tenancy with the deceased, which passes by right of survivorship
• RRSPs, RRIFs, TFSAs, or life insurance with the spouse named directly as beneficiary
• Certain pension death benefits payable directly to a surviving spouse under the plan's own rules

These pass to the spouse regardless of the intestacy rules, so the "entire estate" the spouse inherits under intestacy refers only to what is left to go through the estate itself.

Only a Legally Married Spouse Qualifies

This entire outcome depends on legal marital status. Ontario's intestacy rules give automatic inheritance rights to a legally married spouse — not to a common-law partner, regardless of how long the relationship lasted or how the couple presented themselves publicly. A common-law partner left out of a will has no automatic intestacy claim and would need to pursue a dependant's support claim or another legal route instead, which is a materially different and less certain position than automatically inheriting everything.

Why a Will Can Still Matter Here

Even where the intestacy outcome — everything to the spouse — matches what a couple wants, dying without a will still carries the general downsides of intestacy:

1. No say over who administers the estate. Without a will, no executor is named; someone, typically the spouse, must apply to the court to be appointed, which takes time the spouse may not want to spend while grieving.
2. No specific instructions. A will can address things intestacy can't, such as guardianship wishes for pets, specific bequests to family or charity, or funeral wishes.
3. No plan if the spouse doesn't survive. Intestacy has its own further rules for what happens if there is no surviving spouse either, extending to parents, siblings, and other relatives — a will lets you decide that outcome instead of the default formula.

A Word on Common Assumptions

Couples without children sometimes assume that not having a will is low-risk, since "everything goes to my spouse anyway." For a straightforward, uncomplicated estate with no other issues, that assumption may hold up reasonably well under the default rules described above — but it depends entirely on being legally married (not common-law), and it still leaves the practical burden of a court application to appoint an estate trustee falling on a grieving spouse at the worst possible time.

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