Minor Child as Estate Beneficiary in Ontario: Testamentary Trusts vs. the Office of the Public Guardian (2026)

The Default: What Happens When a Minor Inherits Without a Trust

A parent dies and leaves $500,000 to their 8-year-old child. The executor reads the will, confirms the child is named as beneficiary, and prepares to transfer the funds. Then the estate lawyer explains the problem: Ontario law does not allow a minor to receive a large inheritance directly.

Under Ontario's Children's Law Reform Act, a minor child cannot give a legally valid receipt for property. The executor who hands a cheque to a 10-year-old — or to the child's surviving parent on the child's behalf — has not legally discharged their obligation. If the will does not contain a trust provision or name a trustee for the minor's share, the executor has one option: pay the money to the Office of the Public Guardian and Trustee (PGT).

The PGT is a branch of the Ontario Ministry of the Attorney General. It holds and manages the inheritance until the child turns 18. At that point, the entire amount — minus accumulated fees — is paid out to the child in a single lump sum. No conditions, no staged distributions, no financial literacy requirements.

There is a narrow exception: under section 51 of the Trustee Act, if the minor's share is $10,000 or less, the executor can pay it directly to the child's parent or legal guardian. For anything above that threshold — and most meaningful inheritances far exceed it — the PGT is the default recipient unless the will says otherwise. For the broader picture of how Ontario estates are taxed and administered, see our complete inheritance tax guide.

How the Public Guardian and Trustee Manages the Money

When the PGT receives a minor's inheritance, it deposits the funds into a pooled trust account. The PGT manages these funds collectively — it does not create individual investment portfolios for each minor beneficiary. The investment approach is conservative by mandate:

• Primarily government bonds, GICs, and fixed-income instruments
• Limited equity exposure compared to a balanced portfolio
• No customization based on the child's age or time horizon
• No ability for the surviving parent to influence investment decisions

For a child who is 3 years old when the parent dies, the PGT will hold the money for 15 years. A conservative portfolio over 15 years will almost certainly underperform a balanced or growth-oriented portfolio by a significant margin. On a $500,000 inheritance, the difference between a conservative portfolio returning 3% annually and a balanced portfolio returning 6% annually over 15 years is approximately $280,000 in lost growth.

PGT Fee Structure

The PGT charges:

• 0.6% annually on the market value of assets under management (assessed quarterly)
• 0.6% on income earned within the account
• Additional charges for legal, accounting, and administrative disbursements

These estimates assume the PGT's conservative investment returns of approximately 3% annually. A testamentary trust with a more aggressive investment mandate could significantly outperform these figures.

The Alternative: A Testamentary Trust for Minor Beneficiaries

A testamentary trust is a trust created within the will itself. It comes into existence when the testator dies and the will is probated. For parents with minor children, the testamentary trust is the standard estate planning tool that avoids the PGT entirely.

The trust provisions in the will specify:

• Who serves as trustee — typically a trusted family member, close friend, or a professional trust company
• Investment powers — the trustee can invest for growth, matching the child's long time horizon
• Discretionary distributions before 18 — the trustee can pay for education, health care, extracurricular activities, and the child's general maintenance and benefit
• Distribution schedule after 18 — the parent decides when and how the child receives the capital (staged distributions are common)

Testamentary Trust vs. PGT: Side-by-Side Comparison

Tax Advantages: Income Splitting and the Preferred Beneficiary Election

A testamentary trust is a separate taxpayer for Canadian income tax purposes. It files its own T3 return annually. This creates planning opportunities that do not exist when the PGT holds the money.

Standard Income Distribution: ITA s.104(6)

Under ITA s.104(6), income earned inside the trust that is paid or made payable to the beneficiary in the year is deductible by the trust and taxable to the beneficiary. For a minor child with little or no other income, the first approximately $17,000 of income (the 2026 basic personal amount) is tax-free. The next $55,867 is taxed at the lowest federal bracket (15%) plus Ontario's lowest rate (5.05%) — a combined marginal rate of roughly 20%.

Compare this to income retained inside the trust: a testamentary trust created after 2015 is taxed at the top marginal rate from the first dollar (the graduated rate taxation rules were eliminated for most testamentary trusts in 2016). In Ontario, the top combined marginal rate on ordinary income is 53.53%. The tax savings from distributing income to the minor beneficiary rather than retaining it in the trust can be substantial.

The Preferred Beneficiary Election: ITA s.104(14)

For minor beneficiaries who qualify, the preferred beneficiary election provides an additional tax planning tool. Under ITA s.104(14), the trust and a qualifying beneficiary can jointly elect to have the trust's accumulating income taxed in the beneficiary's hands — even if the income is not actually distributed.

A beneficiary qualifies as a "preferred beneficiary" if they are:

• A resident of Canada, and
• A child, grandchild, or great-grandchild of the person who created the trust (the settlor), and
• Dependent on others by reason of mental or physical infirmity

The infirmity requirement means the preferred beneficiary election is not available for healthy minor children. It is primarily a tool for disabled minor beneficiaries, where the trust may need to accumulate income for long-term care while avoiding the trust's top marginal tax rate. For disabled beneficiaries, this election can save thousands of dollars per year in tax, particularly when combined with the disability tax credit. For a broader look at how estate planning intersects with family tax obligations, see our guide on spousal rollovers and estate tax deferrals.

The 21-Year Deemed Disposition Rule: The Trust's Expiry Date

Every Canadian trust — including testamentary trusts — is subject to the 21-year deemed disposition rule under ITA s.104(4). Every 21 years from the date the trust is created, the trust is deemed to have disposed of all its capital property at fair market value and to have immediately reacquired it at that value. This triggers capital gains tax on any unrealized appreciation inside the trust.

For testamentary trusts holding liquid assets (stocks, bonds, mutual funds), the 21-year rule is manageable — the trustee can sell and repurchase securities to crystallize gains gradually, or distribute assets to the beneficiary before the anniversary. But for trusts holding real estate, the rule creates a potentially devastating tax event.

Worked Example: Real Estate in a Testamentary Trust

Facts: David dies in 2026, leaving the family home (worth $800,000 at death, adjusted cost base set at $800,000 by the deemed disposition on death) in a testamentary trust for his 5-year-old daughter Emma. The trust holds the property for Emma's benefit — perhaps as a future residence or rental property. By 2047 (the 21-year anniversary), the property has appreciated to $1,500,000.

At the 21-year mark, the trust is deemed to have sold the property for $1,500,000 and reacquired it at the same price. The capital gain is $1,500,000 – $800,000 = $700,000. Under the 2026 inclusion rate structure (assuming it persists):

Planning Around the 21-Year Rule

The standard solution is to distribute the property to the beneficiary before the 21-year anniversary. Under ITA s.107(2), a distribution of capital property from a trust to a Canadian-resident beneficiary occurs on a tax-deferred rollover basis — the property transfers at the trust's adjusted cost base, not at fair market value. No capital gain is triggered, and the 21-year clock is effectively reset (it no longer applies because the property is no longer in a trust).

In the example above, if the trustee distributes the property to Emma at age 25 (year 2046, one year before the 21-year anniversary), the property rolls out at the $800,000 cost base. Emma now owns it personally. When she eventually sells it, she will pay capital gains tax on the gain from $800,000 — but that is a future event she controls, not a forced tax bill imposed by the 21-year rule.

For estate planners drafting the trust, the 21-year rule should be addressed in the trust provisions. The trustee should have explicit authority to distribute capital property in specie (in kind) to the beneficiary, and the trust should contemplate the 21-year deadline in its distribution schedule. For more on how capital gains work on inherited property, see our capital gains on inherited property guide.

Cost Comparison: Testamentary Trust vs. the PGT

The financial case for a testamentary trust is straightforward. Here is a side-by-side cost comparison for a $500,000 inheritance for an 8-year-old child (10 years until payout at 18 or first staged distribution):

Even with accounting fees and potential trustee compensation, the testamentary trust consistently outperforms the PGT route on every financial metric. The non-financial advantages — control over distribution timing, investment flexibility, and the ability to protect the child from receiving a large lump sum at 18 — make the case even stronger.

Practical Steps: What Parents Should Do Now

1. Review your will for trust provisions: If your will leaves property to a minor child without a trust, the PGT is your child's default financial guardian. Ask your estate lawyer specifically whether your will includes testamentary trust provisions for minor beneficiaries.
2. Choose the trustee carefully: The trustee has broad discretion over the child's inheritance. Select someone with financial competence, integrity, and a genuine relationship with the child. Name an alternate trustee in case the first choice is unable or unwilling to serve.
3. Specify distribution terms: Do not leave the distribution schedule vague. Specify ages and percentages (for example: one-third at 21, one-third at 25, balance at 30) and give the trustee discretion to advance funds for specific purposes.
4. Address the 21-year rule: If the trust may hold real estate or other appreciating capital property, the trust provisions should explicitly authorize the trustee to distribute property in kind before the 21-year anniversary.
5. Consider life insurance: A life insurance policy payable to the trust can provide the liquidity the trustee needs to manage the trust effectively — covering tax obligations, ongoing expenses, and ensuring the trust does not need to liquidate assets prematurely.
6. Update beneficiary designations: RRSP, TFSA, and life insurance beneficiary designations bypass the will. If you name a minor child as the direct beneficiary of an RRSP, the same PGT problem arises. Name the testamentary trust as the beneficiary instead. For what happens to an RRSP at death, see our RRSP at death walkthrough.

The cost of a testamentary trust — $1,500 to $3,000 added to your will — is one of the highest-return investments a parent can make. It is the difference between the Ontario government managing your child's inheritance with conservative investments and mandatory fees, and a person you trust managing it with flexibility, tax efficiency, and the distribution structure you choose. For a comprehensive estate planning checklist, see our Ontario estate planning checklist.