Capital Gains at Death in Canada — Deemed Disposition Rules

For most Canadians with appreciated capital property — cottages, investment portfolios, family businesses — the largest single tax event of their life is the deemed disposition at death. Section 70(5) of the Income Tax Act triggers capital gains realization on virtually all capital property as of immediately before death. Understanding the rule, the rollover options, and the available exemptions is essential for any meaningful estate planning.

The base rule — section 70(5) #

Section 70(5) provides that immediately before a Canadian dies, they are deemed to have disposed of each piece of capital property they owned, at proceeds equal to fair market value.^[4] The accrued capital gain or loss is realized for tax purposes.

For a non-registered investment portfolio with $400,000 of accumulated gain on a $1,000,000 portfolio:

• $400,000 gain is realized at death
• The taxable portion (currently 50% of gain) is $200,000
• $200,000 is added to terminal-year income
• Tax owed at top marginal rates approximately $94,000 to $108,000 depending on province

The beneficiary inheriting the portfolio takes it at the new stepped-up cost base of $1,000,000.

Spousal rollover — section 70(6) #

If capital property passes to a surviving spouse or common-law partner, or to a qualifying spousal trust:

• Property transfers at the deceased's adjusted cost base (not fair market value)
• No capital gain is realized at death
• The spouse takes the property at the original cost base
• Gain is deferred until the spouse's eventual disposition

The rollover is automatic when the will (or designation) directs property to the spouse, provided the spouse is resident in Canada and the property vests indefeasibly in the spouse (or qualifying trust) within 36 months of death. The executor can elect out of rollover on a property-by-property basis, which is sometimes beneficial — for example, if the deceased had unused capital losses on the terminal return that could absorb realized gains.

Principal residence exemption #

The principal residence exemption (PRE) eliminates capital gain on a designated principal residence. At death:

• The PRE can be applied to fully shelter gain on a single principal residence designated for the years of ownership
• Only one property per family per year can be designated as principal residence
• The executor makes the designation on the terminal return

For most Canadian families whose principal residence (city home) has been their primary home throughout, the PRE shelters most or all of the deemed disposition gain on the home.

The cottage problem #

Cottages and vacation properties are capital property and subject to deemed disposition. Two strategic considerations:

PRE designation strategy. The family can designate years of cottage ownership as principal residence years instead of the city home for those years — sheltering cottage gain at the cost of exposing city home gain. The math typically favours whichever property had higher per-year appreciation. An accountant can model the alternatives.

Lifetime gifting. Transferring the cottage to children during the parent's lifetime triggers a deemed disposition at that point — bringing the tax event forward but potentially at a lower tax cost if the cottage's value is expected to continue appreciating. Specific issues (probate avoidance, control of the cottage, family dynamics) make this a non-trivial decision.

Insurance to fund the tax. Permanent life insurance, with the family as beneficiary, sized to cover the projected deemed-disposition tax. Preserves the cottage for the family without forcing a sale to pay tax.

Expanded loss treatment on terminal return #

A useful asymmetry: capital losses on the terminal return (and any unused loss carry-forwards) can be used more broadly than during life:

• Normally, capital losses offset only capital gains
• On the terminal return, capital losses (after offsetting capital gains for the terminal year and prior year) can be used to offset any other income, including employment, pension, and RRSP income
• This makes terminal-return loss harvesting an important planning consideration

If the deceased held investments at a loss, the executor may consider electing out of certain rollover provisions to crystallize gains that the losses can absorb.

US-situs property #

A Canadian who dies owning US-situs property (US real estate, shares in US-incorporated companies above a threshold, certain US tangible property) may be subject to US estate tax in addition to Canadian deemed disposition.

The Canada-US Tax Treaty provides specific relief — primarily the proportionate unified credit available to Canadians, which can substantially or fully offset US estate tax for moderate estates. The relief is more limited for very large estates.

Snowbirds and Canadians with substantial US property should engage cross-border tax counsel for specific planning.

Worked example #

A 78-year-old Albertan dies. Estate assets:

• Principal residence (Calgary): $1.5M, adjusted cost base $300K → gain $1.2M, fully sheltered by PRE
• Cottage (Sylvan Lake): $800K, adjusted cost base $200K → gain $600K, no PRE available
• Non-registered investments: $400K, adjusted cost base $150K → gain $250K
• RRIF: $300K (treated separately under s. 146.3)

Deemed disposition gain: $850K ($600K cottage + $250K investments) Taxable amount (50% inclusion^[5]): $425K Plus RRIF inclusion: $300K Plus other terminal income: ~$50K Total terminal income: ~$775K

Tax at Alberta marginal rates: approximately $320K to $360K (depending on specific deductions and credits).

This is a typical pattern: registered accounts (RRIF/RRSP) and the cottage drive most of the terminal tax. The principal residence is fully sheltered.

What we focus on at It's Simple Will #

The Life Discovery Kit captures property details and registered-account beneficiary status — letting the executor immediately see where tax exposure sits and what rollover options exist. Without this picture, the executor often discovers the tax picture only when the accountant finishes the terminal return six months in.

See our companion guides: RRSP at death — terminal tax mechanics, TFSA at death, and tax slips at death.