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№ 22 Wills & Estates

Can a Will Be Challenged After Probate Is Granted in Alberta?

Learn how a will or grant can still be questioned after probate in Alberta, including formal proof, time limits and what happens to distribution.

Wills & Estates5 min readTSLBy the Treadstone Law Team · AlbertaUpdated November 1, 2026
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Key takeaways
  • A grant that was issued without a dispute (a Part 1 grant) can be set aside by applying to the Court for formal proof of the will.
  • While a formal-proof application is pending, the personal representative generally cannot distribute estate property unless the Court approves or all interested persons consent.
  • Several related claims, such as rectification and family maintenance, have their own 6-month clocks that run from the date the grant is issued.

You may have just learned that a grant of probate has already been issued and that the will is being treated as valid. It is natural to wonder whether the door has closed. In Alberta, it often has not, but the steps and the timing matter.

This article explains how a grant can be questioned, what formal proof of a will means, how the deadlines fit together, and what generally happens to the estate while a dispute is before the Court.

This article covers the law of Alberta.

A grant is not always the final word

Many grants are issued without anyone appearing to object. The Surrogate Rules call these Part 1, or non-contentious, applications. A person interested in the estate may later apply to the Court to set aside a Part 1 grant, to declare an intestacy, or to restrain a personal representative.

Estate disputes, including formal proof of a will and disputes over the right to a grant, are called contentious matters under the Surrogate Rules. They can be brought under Part 2 by filing Form C1 with an affidavit in Form C2.

Formal proof: asking the Court to test the will

Formal proof of a will, also called proof in solemn form, means the will is proved in Court rather than simply accepted. A personal representative or a person interested in the estate may apply for it. The Court can also require formal proof on its own motion for a Part 1 application, and must give reasons.

People who count as interested in the estate for this purpose include the following:

Formal proof hearings are generally a trial, although they may be in chambers if only the death or the signing formalities are in issue. The person who took instructions for the will can be required to testify about the instructions, how the will was prepared and signed, and the steps taken to assess capacity.

What the Court can decide, and how final it is

On a formal-proof application the Court may decide which will is admitted to probate, whether the person died with or without a valid will, and whether to end a Part 1 grant or a personal representative's appointment. It can also decide who pays costs.

A grant issued after that decision binds all persons, unless there was fraud. An appeal goes to the Court of Appeal. If a Part 1 grant is revoked or terminated, the personal representative must return it to the Court unless the Court orders otherwise.

Timing and distribution

Filing a formal-proof application stays a Part 1 application. While it is pending, a personal representative under a Part 1 grant may not distribute estate property unless the Court approves or all interested persons consent. Separately, a personal representative generally cannot distribute property for six months after the grant unless the Court orders otherwise or family members consent, although reasonable maintenance advances are allowed and not following this rule can create personal liability.

Other claims after a grant have their own clocks:

ClaimTime limit
Rectifying a will for an accidental slip or misunderstanding6 months after the grant, unless the Court extends it
Asking that a gift to a witness not be void6 months after the grant, unless the Court extends it
Family maintenance and support6 months after the grant, though undistributed property may still be reachable
Treating a lifetime transfer as an advanceWithin 6 months of the grant

For some other claims, the Limitations Act can bar a claim 2 years after the claimant first knew or ought to have known of the injury, that it was attributable to the defendant's conduct, and that a proceeding was warranted, or 10 years after the claim arose, whichever expires first. Fraudulent concealment can suspend only the 10-year period, and the claimant bears the burden of proof on it. Limitation periods are also suspended while the claimant is a person under disability, and while the claimant is a minor, although minors are subject to notice-to-proceed rules. Which rule applies to your situation depends on the facts.

Costs and lost wills

A successful party is generally entitled to a costs award against the unsuccessful party. In estate matters the Court may order costs to be paid from the estate or by a party. On formal proof, the Court may penalize a person who required proof if the application was frivolous or vexatious, caused undue delay, or had no substantial basis.

If an original will is lost or destroyed, an interested person must generally apply under the formal-proof rule, unless the Alberta Evidence Act s 40 applies or the Court orders otherwise.

What to do next

Frequently asked questions

Can I still challenge a will once probate has been granted?

Often yes. A person interested in the estate may apply to set aside a Part 1 grant through a formal-proof application. Other claims have their own deadlines, so act promptly.

Does a challenge freeze the estate?

Filing a formal-proof application stays a Part 1 application, and the personal representative generally cannot distribute property unless the Court approves or all interested persons consent.

Who can ask for formal proof?

A personal representative or a person interested in the estate can apply. That includes a spouse or partner, adult children and beneficiaries.

Who pays the legal costs?

The Court decides. It may order costs from the estate or from a party, and a successful party is generally entitled to costs from the unsuccessful one.

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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