Canada does not have a formal estate or inheritance tax — but that doesn't mean estates escape taxation. Canada's deemed disposition rules mean that at death, the deceased is considered to have sold all their property at fair market value, triggering capital gains tax on all accrued but unrealized gains. For high-net-worth Canadians, the resulting tax liability can be substantial. Effective will and trust planning minimizes this burden and ensures wealth transfers to the intended beneficiaries efficiently.
When a Canadian resident dies, the Income Tax Act deems them to have disposed of all their capital property at fair market value immediately before death. Any capital gains that have accrued — on investment portfolios, real estate, private company shares, and other assets — are realized on the terminal tax return.
With the 2024 capital gains inclusion rate increase, the cost of the deemed disposition has increased:
For an estate with $5 million in accrued capital gains (a common scenario for business owners and long-hold real estate investors), the terminal tax bill can exceed $1.5–$2 million.
The most important estate planning tool for married and common-law couples is the spousal rollover. Under Section 70(6) of the Income Tax Act, property left to a surviving spouse (or a qualifying spousal trust) rolls over at the deceased's adjusted cost base rather than at fair market value — deferring all capital gains to the survivor's death or later disposition.
This deferral can be worth hundreds of thousands in postponed tax. However, it is a deferral, not an elimination — the surviving spouse inherits the low cost base and will face the deferred gains when they eventually die or sell.
Property can be left outright to a spouse or to a qualifying spousal trust. Both qualify for the spousal rollover. The spousal trust offers additional benefits:
An outright bequest to the spouse is simpler but gives the surviving spouse full control over the assets — which may not align with the deceased's wishes regarding ultimate beneficiaries.
A testamentary trust is a trust created through a will that comes into existence upon death. Prior to 2016, testamentary trusts were taxed at graduated personal rates — providing a significant income-splitting opportunity. Since 2016, most testamentary trusts are taxed at the highest marginal rate, eliminating this advantage.
The exception is the Graduated Rate Estate (GRE): the estate itself (as a testamentary trust) is taxed at graduated rates for the first 36 months after death. Distributions from the GRE to beneficiaries can be used strategically during the first three years to optimize total tax — timing donations, RRSP contributions, and asset distributions to minimize the tax burden during estate administration.
A Qualified Disability Trust (QDT) is a testamentary trust for a disabled beneficiary who qualifies for the disability tax credit. QDTs are an exception to the flat-rate rule for testamentary trusts — they are taxed at graduated rates. This provides meaningful tax savings when administering assets for a disabled beneficiary over their lifetime.
Registered accounts (RRSPs, RRIFs) are fully included in income on the terminal return unless rolled to a qualifying successor — a spouse, common-law partner, or financially dependent child or grandchild. Rollovers to a surviving spouse defer the full income inclusion to their death or RRIF drawdown. For other beneficiaries, the full RRSP/RRIF balance is taxed on the terminal return at marginal rates.
The terminal return may include a massive income inclusion from RRSP/RRIF plus capital gains from the deemed disposition simultaneously — potentially creating a very high marginal rate on the combined income. Planning strategies include:
Assets passing through the will are subject to probate fees (estate administration tax). In Ontario, probate is 1.5% of the estate value above $50,000 — on a $5 million estate, that's $74,250. Strategies to reduce probate:
Life insurance is uniquely positioned to fund estate tax liabilities. Death benefits are received tax-free by the beneficiary. Corporate-owned life insurance proceeds can flow through the Capital Dividend Account as tax-free capital dividends to surviving shareholders. Insurance is often the most cost-efficient way to pre-fund a known future tax liability — particularly for illiquid assets like real estate or private company shares.
Despite all the planning tools available, a surprisingly large proportion of Canadians die without an updated will — or with a will that no longer reflects their wishes, family situation, or asset structure. An outdated will can result in assets going to unintended parties, unnecessary probate costs, and missed planning opportunities.
For high-net-worth Canadians, wills should be reviewed every three to five years or whenever significant life events occur: business sale, marriage, divorce, birth of children or grandchildren, death of a beneficiary or executor, acquisition of major assets.
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