Can an Islamic Will Be Challenged in Canada?

Module 1What actually overturns a will

• Lack of testamentary capacity — the most common ground. The testator must understand the nature of making a will, the extent of their property, and who might expect to benefit.
• Undue influence — coercion that overbears the testator's own wishes. More than persuasion.
• Improper execution — bad witnessing, or a beneficiary witnessing the will.
• Dependant support claims — someone the deceased was supporting was not adequately provided for.
• Family property claims — a surviving spouse may elect an equalisation of net family property instead of what the will gives.

Module 2British Columbia is the real exposure

Section 60 of BC's Wills, Estates and Succession Act lets a spouse or child apply to vary a will that failed to make adequate provision — and uniquely in Canada, that includes an independent adult child.

In Grewal v. Litt, mirror wills left four daughters $150,000 each from a $9 million estate, with the residue to two sons. The distribution reflected the parents' traditional cultural values. The court varied the wills and awarded the daughters 60%, declining to treat cultural or religious preference as sufficient justification.

Faraid gives a daughter half a son's share. In British Columbia that is precisely the feature a section 60 application attacks.

Module 3Ontario is at the other end

Ontario has no equivalent of section 60 for independent adult children. In Spence v. BMO Trust the Court of Appeal upheld a will disinheriting a daughter, reaffirming broad testamentary freedom for an unambiguous Ontario will.

Dependant support under Part V of the Succession Law Reform Act remains available to someone who was actually being supported — but that is a narrower gate.

Module 4Making the distribution durable

1. Provide adequately for anyone genuinely dependent on you, whatever the fixed shares say. This is the single most effective step.
2. Keep a memorandum with the will recording the reasoning, which school you follow, and who you consulted. It is evidence a court may weigh.
3. Have the lawyer record capacity observations at signing, and instruct them alone — a major beneficiary should not arrange the appointment or attend.
4. Consider lifetime gifts for part of the intention; completed gifts are harder to disturb, though they carry tax consequences.
5. Avoid conditions on inheritance — conditions restraining marriage or based on religion are frequently struck down and invite the litigation you are trying to prevent.

Common questions

Can my will be challenged just because it follows Islamic shares?

Not on that ground alone. Claims succeed on statutory grounds, not because a distribution is religious.

Does writing down my reasons help?

It can. A memorandum is evidence a court may consider — though Grewal shows cultural or religious reasoning is not by itself decisive in BC.

Are lifetime gifts safer?

Generally harder to disturb, but they trigger tax on appreciated property and can still be examined. Take advice before moving assets.

Should I move assets out of BC?

That is a serious decision with tax and practical consequences well beyond estate planning. Raise it with a lawyer rather than acting on it.