Do Half-Siblings Inherit With No Will in Ontario?

A relative has died in Ontario without a will. There is no spouse, no children and no living parents. You may be wondering whether a half-brother or half-sister gets the same share as a full sibling.

This article explains where siblings fall in the order of inheritance, how half-siblings are treated, what happens if a sibling has died, and the practical steps that follow. The details can change the result, so a lawyer can confirm how the rules apply to your family.

Where siblings fall in the order of inheritance

When there is no valid will, Ontario's Succession Law Reform Act sets out who inherits. The estate is distributed in a set order, starting with the spouse and the descendants.

If there is no spouse and no issue, the estate goes to the parents equally, or to the surviving parent absolutely. Siblings only come into the picture when there is no spouse, issue or parent. In that case the estate goes to the surviving brothers and sisters equally.

Half-siblings share equally with full siblings

Degrees of kinship 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.

In practice, it does not matter whether a sibling shared both parents or only one. Each living sibling counts as one share.

When a sibling died first, and when none are alive

• A brother or sister who died before the deceased: that sibling's share goes equally to their children, who are the deceased's nieces and nephews.
• No siblings alive at all: the estate goes equally to the nephews and nieces, without representation.
• Without representation means the children of a deceased niece or nephew do not take that person's share.

So the rule changes depending on the step. If a sibling died first, their children step into their place. If every sibling has died, the nieces and nephews who are alive share equally, and a deceased niece's or nephew's children get nothing.

A short worked example

Suppose a person dies with no will, no spouse, no children and no living parents. They leave a full sister, a half-brother, and the two children of a full brother who died earlier.

The estate is divided into three equal shares. The full sister takes one, and the half-brother takes one, because half-blood relatives take equally with whole-blood relatives. The deceased brother's share is split equally between his two children. Each of those children therefore receives one-sixth of the estate, after debts and costs.

Adoption and birth outside marriage can also affect who counts as a sibling. From the adoption order, an adopted child is the child of the adoptive parent and stops being the child of the former parent, except where that person is the adoptive parent's spouse. All relationships, including with relatives, are determined on that basis for all purposes. A person is the child of their parents whether or not the parents were married, and relationships traced through a person born outside marriage still count. An interest that had indefeasibly vested before an adoption order is not affected. How this applies to a particular family depends on the facts, so it is worth confirming with a lawyer.

Practical points for siblings

• Administration on an intestacy may be granted to the next of kin. A sibling does not have an automatic right: the spouse or common-law partner usually has the first right to apply, a close adult relative such as a sibling can apply after them, and the court may appoint the relative it considers most appropriate.
• The applicant files a Consent to Applicant's Appointment as Estate Trustee (Form 74G, Part B), and anyone entitled to priority who has not joined the application gives a Renunciation (Form 74G, Part A).
• A bond is required when the deceased died without a will. The bond is for double the sworn value of the deceased's property, unless a judge orders otherwise.
• Funeral and burial expenses and debts are paid before the estate is distributed.

The estate trustee is the only person with legal authority to manage or distribute the estate.

What to do next

• Confirm there is no will, and that there is no spouse, child or living parent.
• List every brother and sister, including half-siblings, and note any who have died.
• For any sibling who died, identify their children.
• Check for adoptions in the family that may change who counts as a sibling.
• Decide who will apply to be estate trustee and gather the Form 74G consents or renunciations.
• Speak with a lawyer if the family tree is unclear or relatives cannot be found.

Frequently asked questions