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№ 22 Wills & Estates

What an Adult Interdependent Partner Inherits Without a Will in Alberta

Learn what an adult interdependent partner inherits when there is no will in Alberta, how it compares to a spouse, and how the relationship is proved.

Wills & Estates4 min readTSLBy the Treadstone Law Team · AlbertaUpdated November 1, 2026
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Key takeaways
  • A surviving adult interdependent partner has the same intestacy entitlements as a surviving spouse, including the $150 000 or 50% rule.
  • You qualify through three years of interdependent living, a child of the relationship, or a written agreement.
  • If the relationship is challenged in court, the person claiming to be the partner has to prove it.

If your partner died without a will and you were not married, your right to inherit may depend on whether you were an adult interdependent partner. Alberta law gives that status real weight, and it is often the deciding point.

This article explains what a partner receives, how that compares with a spouse, and what proof of the relationship usually matters.

This article covers the law of Alberta.

What you receive compared with a spouse

The Wills and Succession Act gives a surviving adult interdependent partner the same intestacy entitlements as a surviving spouse, so the rules in sections 60 to 64 apply to both together. In practice that means the following.

For example, on a net estate of $400,000 with one child from a prior relationship, the partner would receive $200,000 and the child $200,000. On a $200,000 net estate, the partner would receive $150,000 and the child $50,000. Net value is worked out after debts, charges, and funeral and administration expenses.

Who is an adult interdependent partner

The Wills and Succession Act uses the meaning from the Adult Interdependent Relationships Act. Under that Act, a relationship of interdependence is a relationship outside marriage in which two people share one another's lives, are emotionally committed to one another, and function as an economic and domestic unit.

There are three routes to partner status.

Proving the relationship

If the relationship is disputed in court proceedings, the person claiming to be an adult interdependent partner has the onus of proving it. Because living together alone is not the test, evidence about how you shared your lives usually matters more than a shared address.

What a court will accept depends on the facts, so a lawyer can tell you what evidence is likely to be needed in your situation.

When partner status does not apply

Several rules can defeat or end partner status.

If the deceased left both a spouse and an adult interdependent partner, the estate is divided between them. A person who takes a share as a partner cannot also take a second share in another capacity.

What to do next

To deal with the estate, someone needs a grant from the Court, and in an intestacy the surviving spouse or adult interdependent partner ranks first among those who may apply. If more than one person ranks equally under that first category, preference goes to the one who lived with the deceased immediately or most recently before death.

Start gathering your proof now, before memories fade and records are lost, and speak with a lawyer if anyone questions your status or if the deceased had children from another relationship.

Frequently asked questions

Does a partner inherit less than a spouse without a will?

No. A surviving adult interdependent partner has the same intestacy entitlements as a surviving spouse, so the $150 000 and 50% rules are identical.

Do we need to have lived together for three years?

Three years of continuous living in a relationship of interdependence is one route. A child of the relationship, or a written partner agreement, can qualify you without the three years.

Who has to prove we were partners?

In court proceedings, the person claiming to be the adult interdependent partner has the onus of proving the relationship.

Can I be a partner if I was married to someone else?

A married person cannot become an adult interdependent partner while living with his or her spouse, and nobody can have more than one partner at a time.

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. Alberta 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 Alberta. Reach us at 1-844-900-1070 or send our Team a message.

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