What is deemed disposition on death?

The sale that never happened

Canada does not tax inheritances. It taxes the person who died, one last time, through the deemed disposition: immediately before death, the law treats every capital property they owned, the home, the cottage, the investments, as sold at fair market value, even though no actual sale took place. Gains up to that moment are reported on the deceased’s final return, filed by the executor (estate trustee). This single rule explains most of what confuses families about estate taxes: the tax bill belongs to the deceased and the estate, not to the people inheriting.

Why the family home usually passes tax-free at death

If the home qualified as the deceased’s principal residence for every year they owned it, the principal residence exemption wipes out the deemed-disposition gain, and the home passes through death untaxed. It is not automatic paperwork-free, the legal representative must still designate the property on the final return, but for a typical Durham family home owned and lived in for decades, no tax arises at death itself. Two exceptions matter. Where property passes to a surviving spouse or common-law partner, it can roll over at cost instead, postponing the gain until the survivor sells. And where the home was not always the principal residence, a cottage years, a rental period, part of the gain can be taxable on the final return.

What the estate owns the day after

After death the estate is a new taxpayer. It acquires the home at the date-of-death fair market value, a stepped-up cost base, and files its own T3 trust returns for what happens next. That stepped-up number is why the date-of-death valuation matters so much: it is the baseline for everything after. If the home then appreciates while the estate holds it, that post-death growth is generally taxable to the estate when it sells, because an ordinary estate cannot claim the principal residence exemption for a vacant home. Within the first 36 months the estate can be a Graduated Rate Estate and pay graduated rates on its income; after that window, trust income is taxed at the top rate from the first dollar.

The executor’s tax calendar

The final return is due April 30 of the year after death for deaths between January and October, or six months after death for deaths in November and December. The Ontario Estate Information Return runs on its own separate clock, 180 days from the probate certificate. The estate’s T3 returns are due 90 days after the estate’s year-end. And before the final distribution comes the clearance certificate: distribute without it and the representative is personally liable for unpaid tax up to the value distributed. For the home itself, the practical takeaway sits upstream of all these forms: a documented valuation at death sets the baseline every later filing depends on, and a sale that does not drift keeps the taxable post-death gain small.

This is general tax information, not tax advice. The capital gains inclusion rate is 50 percent as of this writing, and rules change; confirm every position with an accountant before filing.