How are private-company shares taxed at death in Canada?

Canada has no estate or inheritance tax, but it has a deemed disposition. On death you are treated as having sold your private-company shares at their fair market value the moment before death, which triggers a capital gain equal to that value less your adjusted cost base. Half of that gain is included in income and taxed on your final return at your marginal rate, so a company worth several million with a low cost base can create a large tax bill in the year of death, payable by the estate whether or not the shares are actually sold. This is the first-layer tax this tool estimates.

What is the deemed disposition on death?

The deemed disposition is the rule that treats you as having disposed of your capital property, including private-company shares, at fair market value immediately before death, even though no sale takes place. It is how Canada collects tax on gains that accrued over a lifetime but were never realized. The resulting capital gain is reported on the terminal return, and the tax is a debt of the estate. A qualifying transfer to a surviving spouse or common-law partner can defer it, but deferral is not forgiveness: the gain is simply carried to the survivor and taxed on the second death.

Does the capital gains exemption reduce the tax?

It can, if the shares qualify. The lifetime capital gains exemption for qualified small business corporation shares can shelter a substantial amount of the gain from tax, which meaningfully reduces the first-layer liability. But qualification is technical, it depends on the assets the company holds, how long the shares have been owned, and who owns them, and the exemption is per individual, not per company. Whether it is available, and how much of it remains, is a question for the accountant. This tool lets you model the estimate both with and without it so the difference is visible.

Does a spousal rollover eliminate the tax?

No. A rollover to a spouse or common-law partner defers the tax, it does not eliminate it. The shares pass to the survivor at your cost base, so no gain is realized on the first death, but the same accrued gain remains attached to the shares. On the survivor's death, or an earlier sale, that gain is realized and taxed, with no spouse left to roll to. A rollover buys time and can be valuable, but the liability is postponed rather than cancelled, which is why it should be planned for on the second death, not treated as solved.

How does corporate-owned life insurance fund the tax?

A corporately owned policy pays its death benefit to the company tax-free, and the portion above the policy's adjusted cost basis credits the corporation's capital dividend account, which lets those funds be paid to the estate or shareholders as a tax-free capital dividend. That can create the liquidity to pay the tax at death without selling the business or drawing taxable dividends. It is a common and effective mechanism, but it is not automatic: getting the money from the corporation to the person who owes the personal tax depends on the share structure, the beneficiary, the CDA balance and election, and the surrounding estate plan, and should be structured with the accountant and estate lawyer.

What does this calculator not include?

It estimates the first-layer income tax on the deemed disposition of the shares only. It does not model the second layer of tax that can arise when value is extracted from the corporation, nor post-mortem planning such as the pipeline strategy or a subsection 164(6) loss carryback that can reduce or reorder that double tax, nor probate, corporate wind-up tax, or provincial variations beyond the rates applied. Those depend heavily on individual circumstances and professional planning. The figure here is directional, meant to show the scale of the exposure so it can be planned for, and should be confirmed with your accountant.

What Your Business Owes at Death

The largest bill your family will ever receive may arrive the day you die.

Canada has no estate tax — but it does have deemed disposition. At death, your private-company shares are treated as sold at fair market value, and the gain of a lifetime is taxed on a single return. This estimates that liability, and shows how it can be funded without selling the business.

Your company

Enter what you know. Nothing is stored or transmitted — the math runs entirely in your browser.

The shares

Province of residence

Fair market value of shares

Adjusted cost base

Do the shares qualify as QSBC? (lifetime capital gains exemption)

LCGE still available (2026 max $1,275,000)

Who inherits

Do the shares pass to a spouse / common-law partner?

Insurance in place (optional)

To see how a corporate-owned policy funds the liability.

Corporate policy death benefit

Policy ACB

Knowing the number is the beginning, not the end. If it’s larger than you expected, that’s worth a conversation — you can begin one here.

About this tool

What a business owner's estate owes in tax at death

Canada has no estate tax, which is the reassurance most owners have heard and the reason the real liability catches families off guard. What Canada has instead is a deemed disposition: the day you die, your private-company shares are treated as sold at fair market value, whether or not anyone buys them. The gain built over a lifetime — fair market value less your adjusted cost base — is realized on a single terminal return, and half of it is taxed at your marginal rate. On a company worth several million with a modest cost base, that is a seven-figure bill payable by the estate.

This calculator estimates that first-layer tax. You enter the value of the shares, the cost base, the province, and whether the shares qualify for the lifetime capital gains exemption, and it shows the liability with and without the exemption, and the effect of a spousal rollover — which defers the tax to the second death rather than removing it. Where you enter corporate-owned insurance, it shows how the capital dividend account can move that liquidity out of the company, while being explicit that doing so is not automatic.

It models the first layer only. The second layer of tax on extracting value from the corporation, post-mortem strategies such as the pipeline or a loss carryback, probate, and wind-up tax are deliberately out of scope, because they turn on specifics only your accountant and estate lawyer can assess. The number here is directional, meant to show the scale of the exposure so it can be funded on purpose rather than discovered.

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Important — please read

This estimator is provided for general information and illustration only. It is not tax, legal, accounting, or financial advice, and not an offer to insure. It estimates the first-layer income tax on the deemed disposition of private-company shares at death, at the province’s top marginal rate; your actual liability depends on your adjusted cost base, other income in the year of death, share valuation, and the availability of exemptions, and should be determined with your accountant.

Capital gains figures reflect the 50% inclusion rate and the $1,275,000 lifetime capital gains exemption for qualified small business corporation shares in effect for 2026 (verified to Canada Revenue Agency information; last verified August 2026). QSBC status depends on strict asset-composition and holding-period tests not assessed here. Post-mortem strategies (pipeline, subsection 164(6) loss carryback), estate freezes, probate, and the corporation’s own tax on winding up are not modelled. Rates and rules change — reconfirm before relying on any figure.

Insurance products and services referenced on this page are provided through Sheldrake Group Inc. O/A Sheldrake Group, a licensed life insurance agency in Ontario. Zachary Sikorski is licensed to provide life and accident & sickness insurance in the Province of Ontario. Sheldrake Group Inc. O/A Sheldrake Group is licensed to transact insurance in Ontario only, and nothing on this page is directed at, or intended for, residents of any other jurisdiction. Using this tool does not create an advisor-client or other professional relationship, which is established only through a separate, express engagement. See our Legal & Disclosure and Privacy pages for full terms.