Property Estate Risk

The $700,000 Mistake: Why Joint Tenancy Could Destroy Your Estate

7 min read

It is the most common estate planning move in Canadian real estate: add your adult children to the title of your property as joint tenants, so the property passes directly to them when you die, skipping probate entirely.

It sounds simple. It sounds smart. And in one documented case, it created a tax bill of approximately $700,000 — when the probate fees it was meant to avoid would have been roughly $43,000 in British Columbia.

This is the joint tenancy trap. And it catches more Canadian families than almost any other estate planning mistake.

How joint tenancy is supposed to work

When property is held in joint tenancy, the surviving joint tenant automatically becomes the sole owner at death through the "right of survivorship." The property does not pass through the will. It does not go through probate. The title transfers directly.

That is the appeal. In BC, probate fees run at approximately 1.4% of the gross estate value above $50,000. On a $3 million estate, that is roughly $41,450. Avoiding that fee by using joint tenancy seems like free money.

It is not.

The Supreme Court changed the rules in 2007

The Supreme Court of Canada's decision in Pecore v. Pecore (2007 SCC 17) fundamentally altered how joint tenancy transfers to adult children are treated.

Before Pecore, the legal assumption was that a parent adding an adult child to the title intended a gift. After Pecore, the court established a presumption of resulting trust — meaning the law now presumes that the child holds their interest in trust for the parent's estate, unless the parent can prove they genuinely intended a gift.

This creates what practitioners call the joint tenancy catch-22.

The catch-22: you lose either way

If the transfer is a genuine gift:

CRA treats the transfer as a deemed disposition of 50% of the property at fair market value under subsection 69(1)(b) at the time of the transfer. If the property has appreciated significantly, there is an immediate capital gains tax bill — even though no money changed hands and no sale occurred.

For a property worth $1.5 million with an ACB of $300,000, the capital gain on the 50% transferred is $600,000. At BC's top capital gains rate of 26.75%, the tax is approximately $160,500. Payable now. While the parent is still alive.

And the child's cost base on their 50% interest is the FMV at the time of transfer — $750,000. If the property continues to appreciate, both the parent and the child have future capital gains exposure on their respective halves.

If the transfer is not a genuine gift (resulting trust):

No tax is triggered on the transfer because beneficial ownership has not actually changed. But the property remains beneficially owned by the parent, which means it falls into the parent's estate for probate purposes. The entire probate avoidance objective has failed.

CRA's published position is explicit: where beneficial ownership has not changed, a true joint tenancy does not exist, and the objective of reducing probate fees has not been achieved.

The $700,000 example

The case documented by Mark Goodfield, CPA, CA — on his Blunt Bean Counter blog — illustrates the real cost.

Parents transferred their principal residence into joint tenancy with their adult children. The initial transfer was tax-free because the parents' 50% was covered by the principal residence exemption. So far, no problem.

But the children's 50% interest was not their principal residence — they had their own homes. Only one property per family unit per year qualifies for the principal residence exemption. The children's interest in the parents' home was an investment, not a residence.

When the property was eventually sold, the children owed capital gains tax on their 50% of all appreciation since the transfer date. The property had been in a high-appreciation neighbourhood. The gain on the children's 50% was substantial.

The resulting tax bill: approximately $700,000.

The probate fee the family was trying to avoid: roughly $14,000 in Ontario, or approximately $43,000 on a comparable property in BC.

As Goodfield wrote: the family was penny wise but hundreds of thousands of dollars tax foolish.

It gets worse with rental properties

When parents add children as joint tenants on rental or investment properties, the consequences compound.

The transfer of a 50% interest triggers an immediate deemed disposition at FMV. There is no principal residence exemption available because the property is not a principal residence for anyone. The full capital gain on the transferred 50% is taxable immediately.

If CCA deductions have been claimed on the property, the transfer may also trigger partial CCA recapture — taxed at the full marginal rate (53.50% in BC, 48.00% in Alberta), not the capital gains rate.

And if the parent continues to receive all the rental income despite having given away 50% of the property, CRA may apply the attribution rules under sections 74.1 and 74.2, attributing the income back to the parent and creating a compliance tangle.

What to do instead

The alternative strategies avoid every one of these traps.

Alter ego trusts and joint partner trusts (available to individuals aged 65 or older) are the closest equivalent to joint tenancy's probate avoidance benefit, without any of the risks. Property transfers into the trust at the settlor's cost base under Section 73(1) — no immediate tax. Trust assets bypass probate entirely. There is no Pecore resulting trust issue, no creditor exposure through a co-owner, no loss of control, and the principal residence exemption is retained for eligible properties.

Setup costs of $5,000 to $15,000 are substantial but pay for themselves on any BC estate exceeding approximately $1 million in probate-eligible assets — where the probate fee savings alone exceed $13,650.

Life insurance provides the liquidity to pay probate fees and estate taxes without needing to restructure property ownership at all. A $50,000 to $100,000 term policy specifically designated for probate and estate costs is one of the most cost-effective estate planning tools available. The family keeps the properties. The estate pays the taxes. Nobody sells anything under pressure.

A properly drafted will with a testamentary trust can direct property to specific beneficiaries while providing the executor with flexibility on timing. The property goes through probate, but the probate fee — while annoying — is dramatically less than the tax consequences of a poorly executed joint tenancy transfer.

The bottom line

Joint tenancy is not an estate plan. It is a probate avoidance tactic that frequently creates tax problems far larger than the probate fees it was designed to avoid.

Before adding any family member to the title of any property, speak with a tax professional who can calculate the actual consequences — the deemed disposition on transfer, the principal residence exemption allocation, the CCA recapture implications, the attribution rules, and the Pecore resulting trust risk.

And before assuming probate fees are the biggest cost in your estate, see your actual Section 70(5) number. For most multi-property owners in BC and Alberta, the capital gains tax at death dwarfs the probate fees by a factor of five to ten.

The Legacy Scorecard estimates your total estate tax exposure in 90 seconds. Eight questions. No financial statements required.

This article is educational and does not constitute tax, legal, or financial advice. Tax calculations use confirmed 2025–2026 rates. Pecore v. Pecore, 2007 SCC 17, [2007] 1 SCR 795. Consult qualified professionals for advice specific to your situation. NE Capital operates under NE Financials Inc. Insurance products provided through World Financial Group.

Published: Mar 06, 2026  ·  Last verified: March 2025  ·  Tax figures based on BC and Alberta rates current at time of publication. This article is for educational purposes only and does not constitute tax, legal, or financial advice. Consult a qualified tax professional for advice specific to your situation.

The family was penny wise but hundreds of thousands of dollars tax foolish.

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