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Life Interest vs. Outright Gift to a Second Spouse in Ontario: Protecting Your Children's Inheritance

Comparing a life interest with an outright gift to a second spouse in Ontario, and which approach better protects children from a first marriage.

Wills & Estates5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • An outright gift makes your spouse the full legal owner of whatever you leave them — the house, an investment account, or anything else.
  • A life interest (sometimes called a life estate, or set up through a trust in the will) gives your spouse the right to use an asset — commonly the family home, or income from an…

Here is the central dilemma in almost every second-marriage estate plan: if you leave assets outright to your spouse, they get full control — but nothing stops them from eventually leaving those same assets to their own family instead of your children. A life interest for a second spouse is the tool most often raised as an alternative. Choosing between the two is less about which is "better" and more about which trade-off fits your family.

What an Outright Gift Means

An outright gift makes your spouse the full legal owner of whatever you leave them — the house, an investment account, or anything else. They can live in it, sell it, reinvest it, or eventually leave it to whomever they choose in their own will. There is no built-in mechanism ensuring any of it later reaches your children.

For many couples, this simplicity is exactly what they want: full trust, no strings attached, no ongoing administration. For others — particularly where the relationship with the spouse's own family is complicated, or where a large share of the estate is at stake — it feels too open-ended.

What a Life Interest Is

A life interest (sometimes called a life estate, or set up through a trust in the will) gives your spouse the right to use an asset — commonly the family home, or income from an investment account — for the rest of their life, without making them the outright owner. When your spouse later dies, whatever remains passes to the beneficiaries you named at the outset, typically your children.

Someone needs to administer this arrangement — usually your estate trustee, acting as trustee of the ongoing trust — with the same fiduciary obligations that apply to any estate trustee: acting in the best interests of both your spouse and the eventual remainder beneficiaries, and keeping proper records.

Side-by-Side Comparison

Outright giftLife interest (trust)
Spouse's control during their lifeFull ownership and controlRight to use/income only, subject to trust terms
What happens when the spouse later diesSpouse's own estate decides where it goesPasses automatically to the beneficiaries you named
Flexibility for the spouseHigh — can sell, reinvest, or change plans freelyLower — generally needs trustee involvement for major changes
Guarantee your children eventually receive itNoneBuilt into the structure
Complexity and ongoing administrationMinimalRequires an ongoing trust and a trustee

Why Spouses Sometimes Push Back on a Life Interest

A life interest can feel less secure to the spouse receiving it — they cannot simply sell the home and downsize on their own terms, or reinvest funds however they see fit, without trustee involvement. This is a legitimate concern worth discussing openly rather than glossing over; the goal is a plan both people can genuinely live with, not just one that protects the children on paper.

The Family Law Act Wrinkle

Setting up a life interest does not remove your spouse's separate rights under the Family Law Act. A surviving married spouse generally has the right to elect, within six months of death, to take an equalization payment instead of what the will offers — including a life interest arrangement they consider inadequate. A life interest structure is a planning tool, not a way to override a spouse's own statutory election rights.

Common Ways to Structure a Life Interest

Frequently asked questions

Who manages a life interest trust after I die?

A trustee named in your will — often the same person acting as your estate trustee — administers the trust as a fiduciary, balancing the interests of your spouse during their life and the remainder beneficiaries afterward.

Can my spouse be forced out of a life interest?

Not generally. The terms set out in your will define exactly what your spouse is entitled to, and disagreements about how the arrangement is being administered typically need to be worked out with the trustee or, if necessary, through the court.

Is a life interest the same as adding my spouse as a joint owner?

No. Joint ownership generally passes the entire asset outright to the surviving joint owner by right of survivorship, with no guarantee it ever reaches your children. A life interest is structured specifically to preserve that eventual outcome.

Does a life interest cost more to set up than an outright gift?

Generally, yes — a life interest involves drafting an ongoing trust rather than a simple outright gift, which adds some complexity. Ask about the flat fee for a will that includes this kind of structure so you know the cost upfront.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario 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 licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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