What Is a Discretionary Family Trust in Ontario Estate Planning?

Most people picture a trust as a fixed arrangement: this beneficiary gets this amount, on this schedule, no questions asked. A discretionary family trust works differently. Instead of locking in who gets what and when, it hands that decision to a trustee, who exercises judgment — within the boundaries the trust sets — about how and when to benefit each person named. In Ontario estate planning, that flexibility is often the entire point.

Discretionary vs. Fixed: The Basic Distinction

In a fixed trust, the trust document spells out exactly what each beneficiary is entitled to — a specific share, a specific schedule, no room for the trustee to deviate. The beneficiary has a defined, enforceable entitlement.

In a discretionary trust, the trust document identifies a group of potential beneficiaries (often "my children" or "my spouse and descendants") but leaves it up to the trustee to decide how much any individual beneficiary receives, and when — sometimes ranging anywhere from nothing to the full amount available, depending on circumstances the trustee is meant to consider.

This distinction matters most in exactly the situations where a family wants flexibility built in rather than a rigid formula decided years in advance, before anyone knows what any beneficiary will actually need.

Why Families Choose Discretion Over a Fixed Formula

Circumstances change, but a fixed trust can't adapt

A trust drafted today with a fixed distribution schedule locks in assumptions about a beneficiary's needs that may look very different by the time distributions actually happen — a child's health, financial responsibility, marriage, or career can all shift the picture. A discretionary trust lets the trustee respond to the situation as it actually unfolds, rather than as it was guessed at when the trust was written.

Protecting a beneficiary who receives means-tested government benefits

This is one of the most important and well-established uses of a discretionary trust in Ontario. A beneficiary who receives disability-related government benefits that are means-tested can lose eligibility if they're found to have a fixed, vested entitlement to trust property. A properly drafted, fully discretionary trust — commonly called a Henson-type trust — avoids this problem because the beneficiary has no enforceable right to any particular amount; the trustee decides, which means the assets aren't counted against the beneficiary the same way a guaranteed entitlement would be.

Protecting a beneficiary from creditors, a difficult relationship, or poor financial judgment

Because a discretionary beneficiary doesn't have a fixed, transferable entitlement, the structure can also make it harder for a beneficiary's creditors, a separating spouse, or the beneficiary's own poor decisions to reach trust property the way they might reach an outright inheritance.

Treating a family "fairly" without treating everyone identically

Families with children who have very different needs — one financially independent, one still establishing themselves, one requiring ongoing support — sometimes prefer a discretionary structure precisely because it doesn't force an artificial equal split. The trustee can weigh actual need and circumstance, guided by whatever direction the person setting up the trust chooses to leave.

What the Trustee's Discretion Actually Looks Like

• Who benefits, and how much — the trustee decides which named or eligible beneficiaries receive distributions, and in what amounts, within the trust's terms.
• When distributions happen — rather than a fixed schedule, the trustee decides timing based on need, circumstances, or the trust's stated purpose.
• Guided, not unlimited, discretion — a well-drafted trust typically includes a letter of wishes or guiding language from the person who created it, giving the trustee direction about priorities and intentions, even though that guidance isn't usually as legally binding as the trust's actual terms.
• Ongoing fiduciary obligations — a trustee's discretion is not unchecked; they still owe fiduciary duties to the beneficiaries as a group, must act in good faith, and must genuinely turn their mind to the decision rather than ignore it.

Setting One Up: What It Typically Involves

• [ ] Deciding who the eligible beneficiaries are (a defined class, such as "my children and their descendants," or specific named individuals)
• [ ] Choosing a trustee (or trustees) you trust to exercise judgment fairly and in line with your intentions
• [ ] Deciding whether the trust is created now (an inter vivos discretionary trust) or through your will (a testamentary discretionary trust)
• [ ] Drafting clear guiding language or a separate letter of wishes to help the trustee understand your priorities, without necessarily locking in a fixed formula
• [ ] Considering whether a specific beneficiary's situation — such as receipt of means-tested disability benefits — requires the trust to be drafted as fully discretionary, with no fixed entitlement at all, to avoid jeopardizing those benefits
• [ ] Reviewing tax treatment with a lawyer or accountant working from current rules, since trust taxation involves specific considerations beyond the scope of a general estate-planning overview

Frequently asked questions