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№ 22 Wills & Estates

Can You Claim Against an Estate in Alberta If Left Out of the Will?

Learn who can make a maintenance claim against an estate in Alberta under the Wills and Succession Act, and why being left out of a will is not enough.

Wills & Estates4 min readTSLBy the Treadstone Law Team · AlbertaUpdated November 1, 2026
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Key takeaways
  • Being left out of a will does not, on its own, give you a right to challenge it; Alberta's maintenance claim is open only to listed family members.
  • The listed family members include a spouse, an adult interdependent partner, certain children and, in limited cases, certain grandchildren.
  • The usual deadline is 6 months from the date the grant of probate or administration is issued, so timing matters.

Finding out that you were left out of a will, or left very little, is painful. Many people assume that a close relationship is enough to challenge it. In Alberta, the law is narrower than that.

This article explains the main claim available against an estate, who can bring it, who generally cannot, and what to do if you think you may qualify. It is general information, not advice on your situation.

This article covers the law of Alberta.

There is no general right to inherit

The claim people usually have in mind is a family maintenance and support claim under Part 5, Division 2 of the Wills and Succession Act. It is a statutory remedy for certain defined family members. It is not a general right to inherit, and a person outside the definition has no Part 5 claim, however close the relationship.

If a person dies with a will that does not adequately provide for the proper maintenance and support of a family member, the Court may order that any provision it considers adequate be made out of the estate. The same section applies where someone dies wholly or partly without a will and a family member's share is inadequate.

Who can make a claim

The Act lists the family members who can apply:

An adult interdependent partner has a claim in the same category as a spouse. Whether someone counts as a spouse for these purposes can depend on the facts, so ask a lawyer if that is your situation.

Who generally cannot claim

Several groups are often surprised to learn they fall outside the list.

For a grandchild, the Act sets out what standing in the place of a parent means. There must be a settled intention to treat the grandchild as their own child. Also, since birth or for at least 2 years before death, the grandchild's primary home had to be with the grandparent, who had to provide the primary financial support.

What the court looks at if you qualify

Qualifying as a family member does not guarantee an order. The Court considers factors such as your relationship with the deceased, your age and health, your capacity to contribute to your own support, and any entitlement you have to support from another person. It also looks at the deceased's legal support obligations, the reasons the deceased gave for the gifts made, including written statements, and any agreement or waiver you signed.

The Court also considers the size and distribution of the estate and any benefits that arise from the death, and it may consider any other matter it finds relevant. A waiver does not necessarily shut the door, because the Court can make an order despite a family member's waiver or agreement to the contrary.

What to do next

Timing is the most important practical point. An application must be commenced within 6 months after the grant of probate or administration is issued, and the clock runs from the date of the grant, not the date of death.

Frequently asked questions

Can I challenge a will just because I was left out?

Being left out is not enough on its own. A Part 5 maintenance claim is a statutory remedy open only to the family members listed in the Act, not a general right to inherit. Other grounds for challenging a will may exist, and a lawyer can tell you whether any apply to your facts.

Can my adult child claim if I leave them nothing?

Only in limited cases. An adult child is a family member only if unable to earn a livelihood because of a mental or physical disability, or aged 18 to under 22 and a full-time student who cannot withdraw from the parents' charge.

Does the claim work if there is no will?

Yes. The maintenance provisions also apply where a person dies wholly or partly intestate and a family member's share is inadequate.

How long do I have to apply?

An application must be commenced within 6 months after the grant of probate or administration is issued. The Court may allow a later application only for estate property not yet distributed.

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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