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Ontario Intestate Succession Rules Explained Step by Step

A plain-language guide to the Succession Law Reform Act intestacy rules in Ontario, with worked examples of how shares split between spouse and family.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • With a spouse and children, the spouse takes the whole estate if its net value is no more than the preferential share; if it is more, the spouse takes the preferential share first, which is $350,000 for deaths on or after March 1, 2021.
  • What is left is split by fixed fractions: one-half to the spouse with one child, or one-third with more than one child.
  • Without a spouse, the estate moves down a set order of relatives, from descendants to parents, siblings, nieces and nephews, then other next of kin.

If you are reading the Succession Law Reform Act to work out who gets what when there is no will, the sections are short but they depend on each other. The key is to go in order: first the spouse, then descendants, then more distant relatives.

This article walks through the steps and gives simple examples. The examples are for illustration only, and real estates often have wrinkles worth checking with a lawyer.

Step 1: Is there a spouse?

For the intestacy rules, spouse has the same meaning as in the Family Law Act, which means people who are married to each other. A common-law spouse does not inherit under the Succession Law Reform Act when there is no will.

Married spouses who were separated at the time of death do not get the spouse's intestacy entitlements. Spouses count as separated if, before the death, they had lived apart for three years or had a written separation agreement, court order or family arbitration award settling their affairs, and they were still living separate and apart because of the breakdown at death. This rule applies only where that qualifying event happened on or after January 1, 2022. Earlier separations are treated under the older rule, so get advice.

An unmarried partner may still be able to apply to court for support from the estate as a dependant if the deceased did not make adequate provision for them. For this purpose, unmarried partners count as spouses if they cohabited continuously for at least three years, or were in a relationship of some permanence and are the parents of a child.

Step 2: Spouse and descendants

If there is a spouse and no descendants, the spouse takes the whole estate. If there is a spouse and descendants, the first question is the net value, meaning the property after charges on it, debts, funeral expenses and administration expenses.

If a child died before the intestate but left descendants alive at the date of death, that child is still counted as living when the spouse's share is calculated. For example, with two children where one has died leaving grandchildren, the spouse still gets one-third.

Worked examples

These examples assume a death on or after March 1, 2021 and a net value worked out after debts and expenses.

SituationSpouse receivesOthers receive
Net value no more than the preferential share, spouse and two childrenThe whole estateNothing
Net value more than the preferential share, spouse and one childThe preferential share, plus one-half of what is leftThe child takes the other half of what is left
Net value more than the preferential share, spouse and two childrenThe preferential share, plus one-third of what is leftThe children share the rest equally

Work out the net value first, because the preferential share is measured against it. How these steps apply to a particular estate depends on its facts, so it is worth confirming the numbers with a lawyer.

Step 3: When there is no spouse

Subject to any spouse's rights, the property is distributed equally among the descendants. If a child died before the intestate, that child's share passes to their own descendants, and the same rule applies to later generations. If there is no spouse and no descendants, the estate goes to the parents equally, or to the surviving parent.

Moving further out, the order is:

Degrees are counted up from the deceased to the nearest common ancestor and then down to the relative. Half-blood relatives inherit equally with whole-blood relatives of the same degree, so half-siblings share equally with full siblings.

Special cases and what to do next

Because the equalization choice has a short deadline, a surviving spouse should get advice early. Also gather the date of death, a list of relatives, and the estate's assets and debts before anyone applies to be estate trustee.

Frequently asked questions

What is the preferential share in Ontario?

It is the amount a spouse takes first when the intestate leaves a spouse and descendants. It is $350,000 for deaths on or after March 1, 2021, and $200,000 for earlier deaths.

Do grandchildren inherit when a parent has died?

Yes. If a child died before the intestate, that child's share passes to their own descendants. This is why grandchildren take their deceased parent's share.

Do half-siblings inherit as much as full siblings?

Yes. Half-blood relatives inherit equally with whole-blood relatives of the same degree.

Can a spouse choose something other than the intestacy share?

A married surviving spouse must choose between the Succession Law Reform Act entitlement and an equalization payment. The election is filed within six months after the death, so it is worth speaking to a lawyer promptly.

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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