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№ 22 Wills & Estates

Half-Siblings and Adopted Children Without a Will in British Columbia

Find out how British Columbia intestacy rules treat adopted children, siblings and other relatives when someone dies without a will, and what to confirm.

Wills & Estates5 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 6, 2026
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Key takeaways
  • Without a spouse, the estate goes first to descendants, then parents, then siblings, nieces and nephews, then grandparents and their descendants, then great-grandparents and their descendants.
  • An adopted child does not inherit on intestacy from a pre-adoption parent, and that parent does not inherit from the child.
  • Adoption by a pre-adoption parent's spouse does not end the parent-child relationship for succession purposes.

When someone dies without a will, the law decides who counts as family. That can raise hard questions if the deceased had half-siblings, an adopted child, or a child whose parents were not married.

In British Columbia, the Wills, Estates and Succession Act (WESA) sets an order of relatives and some specific rules for adoption. Some questions, such as half-siblings, turn on details a lawyer should confirm.

This article covers the law of British Columbia.

The order of relatives when there is no spouse

If there is no surviving spouse, the intestate estate goes in this order. It goes first to the deceased's descendants. If there are none, it goes to the parents in equal shares or to the surviving parent. After that come descendants of the parents (siblings, nieces and nephews), then grandparents and their descendants, then great-grandparents and their descendants.

If no one in that list is entitled, the whole intestate estate passes to the government, and the Escheat Act then applies. If there is a spouse, the spouse's rights come first.

Whether there is a spouse is the first question. Two people are spouses of each other if both were alive immediately before the relevant time and they were married, or had lived in a marriage-like relationship for at least 2 years. The relevant time is generally the date of death.

There are exceptions. Married spouses stop being spouses if an event occurs that causes an interest in family property to arise under the Family Law Act, such as separation. Spouses in a marriage-like relationship stop being spouses when one or both of them end the relationship. Spouses are not treated as separated if, within one year after separating, they resume living together primarily to reconcile and live together for periods totalling at least 90 days.

If the deceased left a spouse and no surviving descendants, the whole intestate estate goes to the spouse. If there are descendants, the spouse takes a preferential share first, which is $300,000 or a greater prescribed amount where all the deceased's descendants are also the spouse's descendants. If some are not, such as children from another relationship, it drops to $150,000 or a greater prescribed amount. The spouse also takes the household furnishings. After the preferential share, the rest is divided equally between the spouse and the descendants. If the net intestate estate is worth less than the spouse's preferential share, the spouse takes the whole estate and the descendants take nothing.

Adopted children

An adopted child does not inherit on intestacy from a pre-adoption parent, and that parent does not inherit from the child. There is an exception: adoption by a pre-adoption parent's spouse does not end the parent-child relationship for succession purposes.

SituationEffect on intestacy
Adopted child and birth parentNo inheritance either way
Child adopted by birth parent's spouseThe relationship with that birth parent continues

The rules above concern the link to the pre-adoption parent. How the adoptive family relationship is treated is a separate point to confirm with a lawyer.

Half-siblings and children born outside marriage

The list of relatives refers to siblings and the descendants of parents. Whether a half-sibling is treated the same as a full sibling, and how a child born outside marriage is treated, depends on how the Act defines those family relationships. That is worth confirming with a lawyer who can check the current wording against your facts.

In practice, half-siblings matter mainly when there is no spouse, no descendants and no surviving parent, because siblings come only after those groups.

Other situations that change who is an heir

Estate property for descendants is divided into equal shares, so adult children share equally with no preference for age.

What to do next

A person applying to administer the estate must deliver a notice of proposed application in Form P1, and cannot apply until at least 21 days afterward. On an intestacy, the notice goes to each intestate successor, so the family tree matters.

Where a successor is a minor, notice is also given to the Public Guardian and Trustee, and a minor's share is generally paid to the Public Guardian and Trustee in trust where no trust exists.

Frequently asked questions

Do half-siblings inherit without a will in BC?

Siblings come after the deceased's descendants and parents in the order of relatives. Whether half-siblings count the same way depends on how the Act defines the relationship, so a lawyer should confirm it.

Can an adopted child inherit from their birth parent?

An adopted child does not inherit on intestacy from a pre-adoption parent, and that parent does not inherit from the child. The exception is adoption by a pre-adoption parent's spouse, which does not end that relationship for succession purposes.

Who inherits if there are no relatives at all?

If no one listed in the order of relatives is entitled, the whole intestate estate passes to the government, and the Escheat Act then applies. The Attorney General may restore land or authorize payment to a person with a legal, equitable or moral claim.

Who can administer the estate if the family disagrees?

The spouse, or a person nominated by the spouse, has first priority, and a child ranks next with the consent of a majority of the children. The court may appoint any person it considers appropriate in special circumstances.

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. British Columbia 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 lawyer who practises in British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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