How to Choose a Guardian for Your Children in a Canadian Will
Choosing a guardian for your minor children is among the most emotionally weighted decisions in estate planning.[1] The good news — it's a decision you can make thoughtfully now, document clearly, and update as circumstances change.
What guardianship involves
If both parents die, a guardian is responsible for the child's care and decision-making, subject to the applicable provincial law and any parenting order.[3][4] They:
- Provide housing, food, education, healthcare
- Make day-to-day care decisions
- Make major decisions about religion, schooling, healthcare
- Generally have authority while the children remain minors, subject to the appointment's terms, court orders, and the applicable age-of-majority law (18 in most provinces, 19 in some)[6][7]
The guardian role is for personal care. A separate role — trustee — manages the children's financial inheritance.
A testamentary appointment's effect varies by province: it may take effect without an initial court order in some jurisdictions, while others impose time limits or require a court application. In British Columbia, a testamentary guardian may take office by consenting under the Family Law Act, subject to the child's best interests; Ontario has a different temporary process.[4] In Ontario, a testamentary appointment under the Children's Law Reform Act takes effect only in the circumstances set out in section 61, requires the appointee's consent, and generally lasts 90 days unless the appointee applies to court for a further order.[2][3] Courts across Canada retain the authority to confirm, vary, or refuse a parent's choice of guardian; courts generally make parenting and guardianship decisions using the governing child-centred statutory test, but the wording and procedure vary by jurisdiction, so a serious concern (safety, an estranged relationship, and similar) can lead a court to appoint someone other than the person named in the will.[3][4] The exact timing and process vary by province; confirm the current rules where you live.
Selection criteria
Values alignment. How they'd raise children matches your wishes — religion (or secular), education priorities, parenting approach.
Willingness. They've been asked and agreed. Don't assume; don't surprise.
Capacity. Physical health, age, life circumstances support taking on additional children. A 70-year-old grandparent may agree but realistically may not be best.
Geographic stability. Children won't have to move far if avoidable. Local family or close friends typically preferable to distant relatives.
Existing relationship with the children. Aunt the children see weekly may be better than uncle the children see annually.
Financial situation. Less critical because the children's inheritance funds their care. But the guardian's own financial stability matters for the children's environment.
Family situation. Their own marriage, their own children, their work-life balance.
Common choices
Grandparents. Common when grandparents are younger (50s-60s), healthy, and close to the children. Less appropriate when elderly.
Aunts/uncles (siblings of parents). Often appropriate — similar generation, often close relationship with the children.
Close friends. Valid if they have stronger relationship with the children than family members do.
Adult siblings of the children (rare, only when oldest is well-established adult). Sometimes appropriate for older children when an adult sibling has stable life.
Naming backups
Critical. Reasons your primary guardian might not serve:
- They decline at the time (it's their right)
- They predecease you
- Their life circumstances changed (health, divorce, financial hardship)
- They moved internationally
- The relationship has changed
Name at least one backup; ideally two.
Guardian vs. trustee
Guardian — personal care of children. Day-to-day raising.
Trustee — financial management of children's inheritance. The trustee manages the inheritance under the will or trust, and may spend funds for the child only as authorized by the governing terms and law;[5] protects inheritance until children reach age of access (often 18, 21, 25, or staged).
Same person — simpler. Different people — splits responsibilities, balances perspectives, prevents conflicts of interest. Many families separate the roles.
Telling the chosen guardian
Essential conversation. Cover:
- That you'd like to name them
- What guardianship would involve
- Your wishes for the children (religion, education, values)
- Financial provision (their care funded by inheritance and possibly life insurance)
- That they're not obligated to accept
Some people decline. Better to learn now and name someone else than to have surprise post-death.
What we focus on at It's Simple Will
The will questionnaire prompts you to name guardian and backup guardian, plus the trustee for the children's inheritance.
Related guides
Citations & sources
- [1]Canadian Bar Association — Wills, Estates and Trusts Section - Canadian Bar Association
- [2]Children's Law Reform Act, R.S.O. 1990, c. C.12, s. 61 — testamentary appointment of guardian - CanLII
- [3]Children's Law Reform Act, RSO 1990, c C.12, ss 18, 20, 24, 61 (Ontario) — official e-Laws text - Government of Ontario
- [4]Family Law Act, SBC 2011, c 25, Part 4, ss 37, 39, 50–57 — guardianship and appointment of a guardian on death (British Columbia) - BC Laws — King's Printer
- [5]Trustee Act, RSBC 1996, c 464, ss 24–25 — maintenance of a minor from trust property (British Columbia) - BC Laws — King's Printer
- [6]Age of Majority and Accountability Act, RSO 1990, c A.7 (Ontario) - Government of Ontario
- [7]Age of Majority Act, RSBC 1996, c 7 (British Columbia) - BC Laws — King's Printer
Frequently asked questions
What does a guardian do?
A guardian is responsible for the child's care and decision-making, subject to the applicable provincial law and any parenting order — providing housing, food, education, healthcare, day-to-day care. Makes decisions about religion, schooling, activities. Essentially raises the children to adulthood. Distinct from the trustee who manages the children's inheritance financially.
Who can be a guardian?
The eligibility rules for a guardian vary by jurisdiction; the proposed guardian must meet the applicable statutory requirements and be suitable in the child's circumstances. Provincial rules apply. If one parent dies, the surviving parent may continue to have parental responsibilities or decision-making authority, subject to any court order and the governing provincial law; a step-parent does not become guardian solely by being married to the deceased parent. The will-named guardian takes over if both parents have died.
What if the chosen guardian declines?
They can decline (it's not binding). If a named guardian cannot or will not act, a backup may be able to serve if the will and local law permit; otherwise, a court or statutory process may be needed. Always name multiple backups.
Should I tell the chosen guardian?
Yes — always. They should know they've been named and have agreed in principle. Some people decline; better to know in advance and name someone else. The conversation also gives them time to prepare mentally for the possibility.
Should guardian and trustee be the same person?
Mixed. Same person — simpler, no coordination needed. Different people — splits responsibilities, can balance personal-care role vs. financial role, prevents the guardian from having unilateral access to the children's funds. Many families have the same parent serve as guardian and a different sibling serve as trustee.
What about religion?
A will may record a parent's wishes about religion or upbringing, which may be relevant, but the guardian and any court must generally apply the child's best-interests standard. Specifying ("children should be raised in the Catholic faith" or "children should be raised secular") removes ambiguity.