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№ 22 Wills & Estates

Partial Intestacy in Ontario: When a Will Doesn't Cover Everything

Learn what happens in Ontario when a will leaves out some property: the spouse's preferential share, how the rest is split, and who can claim.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • Property a will does not dispose of is distributed under the intestacy rules of Ontario's Succession Law Reform Act.
  • A spouse who receives less than the preferential share under the will takes the shortfall from the leftover property, and a spouse who receives more does not get a further preferential share.
  • Common-law partners take nothing on an intestacy, but they may be able to apply to court for support as dependants.

Sometimes a person leaves a will, but it does not deal with everything they owned. A gift may fail, or the will may have no clause saying who gets whatever is left over. The part the will does not cover is called a partial intestacy.

This article explains how that leftover property is generally handled in Ontario, with a focus on the surviving spouse's preferential share, how the rest is divided, and who may be left out. Your facts matter, so a lawyer can confirm how this applies to a particular estate.

What a partial intestacy is

When a person dies without a valid will, it is called an intestacy, and Ontario's Succession Law Reform Act sets out how the estate is distributed. When there is a will that does not dispose of everything, the property outside the will is dealt with under those same rules.

On an intestacy, the people who can inherit are the deceased's spouse and closest next-of-kin. The will still governs the property it does cover. The intestacy rules apply only to what is left.

The spouse's preferential share

If the will gives the spouse nothing, or less than the preferential share, the spouse takes the shortfall from the intestate property. If the will gives the spouse more than the preferential share, the usual spouse rules in s. 45(1) and (2) do not apply.

The preferential share is $350,000 for the estates of people who die on or after March 1, 2021. For deaths before March 1, 2021, it is $200,000. Check the date of death before relying on either figure.

The preferential share is measured against net value, which is the value of the property after paying the charges on it and the debts, funeral expenses and administration expenses.

How the rest is divided

If there is a spouse and no descendants, the spouse takes the whole estate. With a spouse and descendants, the spouse takes the whole estate if its net value is no more than the preferential share. If the net value is more, the spouse first takes the preferential share.

What is left after the preferential share is then divided as follows.

Subject to the spouse's rights, the property is distributed equally among the deceased's descendants. If a child died first, that child's share passes to their own children, and the same rule applies to later generations.

When there is no spouse, or the spouse is excluded

Who survivesWho inherits
No spouse and no descendantsThe parents equally, or the surviving parent absolutely
No spouse, descendants or parentBrothers and sisters equally; a late sibling's share goes to their children
None of the aboveNieces and nephews equally, without representation
No nieces or nephewsThe next of kin of equal degree, without representation

Half-blood relatives inherit equally with whole-blood relatives of the same degree, so half-siblings share equally with full siblings.

A spouse who was separated from the deceased at the time of death has no intestate entitlement. Spouses count as separated if they had lived apart for three years, or had a written separation agreement, court order or family arbitration award, and were still living separate and apart because of the breakdown at death. This rule applies only if that qualifying event happened on or after January 1, 2022.

If there is no spouse, descendant, parent, sibling, niece, nephew or next of kin, the property becomes the Crown's under the Escheats Act, 2015. A person who later proves a legal claim to the satisfaction of the Public Guardian and Trustee is entitled to receive it.

Common-law partners and the spouse's election

For these rules, a spouse means a person married to the deceased. A common-law spouse does not inherit under the Succession Law Reform Act when there is no will.

A common-law partner may still be a dependant. A dependant may apply to court for support if the deceased did not make adequate provision for them. Unmarried partners count if they cohabited continuously for at least three years, or were in a relationship of some permanence and are the parents of a child. The application cannot be made after six months from the grant of letters probate or letters of administration. The court may allow a late application for any part of the estate still undistributed.

A married surviving spouse must elect between the Succession Law Reform Act entitlement and an equalization payment. The election must be filed within six months after the death, and a spouse who does not file in time is deemed to have chosen the Succession Law Reform Act entitlement, unless the court orders otherwise. The details of how this fits with a will are worth confirming with a lawyer.

What to do next

Because a partial intestacy mixes the will with the statutory rules, a lawyer can help you work out who is entitled to what.

Frequently asked questions

What happens to property a will does not mention?

It passes under the intestacy rules of the Succession Law Reform Act. The will still governs the property it does cover.

Does a spouse get the preferential share if the will already gives them more?

No. If the will gives the spouse more than the preferential share, s. 45(1) and (2) do not apply. If it gives less, the spouse takes the shortfall from the intestate property.

Does a common-law partner inherit the leftover property?

No, a common-law spouse does not inherit under the Succession Law Reform Act when there is no will. They may apply to court as a dependant, generally within six months of the grant.

What if no relatives can be found?

The property goes to the Crown under the Escheats Act, 2015. A person who later proves a legal claim to the Public Guardian and Trustee's satisfaction is entitled to receive it.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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