Death and Taxes, Twice: The Hidden Estate Risk in Your Private Company
Death may end a business owner’s involvement in a company. It doesn’t necessarily end the tax exposure tied to its value. On Halloween, it seems fitting to look at what can come back to haunt an estate.
Many owners assume their private company will pass to the family the same way as a bank account or an investment portfolio. The tax result is often quite different. Without planning, the same corporate value can be taxed once on the owner’s final return and then again when the corporation pays that value to the estate or beneficiaries. Fortunately, this ghost can be dealt with, provided the executor and advisors move early.
How the first tax arises
At death, an individual is generally deemed to have disposed of their capital property, including private company shares, at fair market value immediately before death, unless a rollover applies, such as a transfer to a surviving spouse or spousal trust. Any accrued gain is reported on the deceased’s terminal return. The estate then acquires the shares with a cost base equal to that fair market value.
That is the first tax. It’s levied on value the owner never received in cash, which is why liquidity is often the first practical problem an executor faces.
How the second tax arises
The shares themselves rarely meet the family’s needs. Usually, the estate needs cash to pay the terminal-year tax, settle debts and make distributions, and that cash sits inside the corporation. If the corporation redeems the estate’s shares, winds up or distributes its assets, the amount paid above the shares’ paid-up capital is generally treated as a dividend to the estate. The same underlying value has now been taxed a second time at the shareholder level.
A simplified illustration
Assume a BC resident dies owning all of the shares of a holding company worth $2 million, with a nominal cost base and paid-up capital. The company has no capital dividend account or refundable tax balances, and no spousal rollover or capital gains exemption is available. For simplicity, top 2026 combined federal-BC rates apply throughout: 26.75% on capital gains and 48.89% on non-eligible dividends.
| Amount | |
|---|---|
| Tax on the capital gain on the terminal return | approx. $535,000 |
| Tax on a $2 million dividend paid to the estate | approx. $978,000 |
| Combined shareholder-level tax | approx. $1.51 million (about 75%) |
The redemption also gives the estate a capital loss, because its proceeds are reduced by the deemed dividend. Without planning, that loss may remain stranded in the estate, with no gain to offset. The figures are illustrative only. Actual results depend on the corporation’s tax accounts, the assets it holds, the share structure and the estate’s circumstances.
Three ways to address the second tax
The objective of post-mortem planning is generally to reduce the exposure to a single layer of shareholder-level tax. The main approaches are:
Loss carryback. The estate redeems shares and carries the resulting capital loss back to the deceased’s terminal return under subsection 164(6), where it offsets the gain on death. In effect, the capital gain is replaced by dividend tax in the estate. This approach works best where the corporation has favourable tax accounts, such as a capital dividend account created by corporate-owned life insurance. However, stop-loss rules can restrict the loss where capital dividends are paid.
Pipeline. The estate keeps the capital gain on death as the single tax and uses the higher cost base of the inherited shares to extract corporate value over time as repayment of debt rather than as dividends. Pipelines are subject to the anti-surplus-stripping rules and require patience. At a May 2026 roundtable, the CRA again noted that the transactions it has ruled on favourably generally kept the original corporation separate, carrying on its business for at least one year before any amalgamation or wind-up. It suggested that taxpayers wanting to depart from that pattern consider seeking an advance ruling. A pipeline is generally less suitable where the corporation is essentially a pool of cash with no ongoing activity, or where the deceased’s cost base reflects a prior use of the capital gains exemption.
Hybrid. A combination of the two: some shares are redeemed to fund immediate liabilities and to make use of available tax accounts, while a pipeline handles the remaining value.
None of these approaches is automatic. Each depends on the facts and requires valuations, corporate resolutions, elections and careful timing.
What changed in 2026
Until recently, the loss carryback had a significant timing constraint: the estate generally had to realize the loss within its first taxation year. That left executors little time to obtain valuations, gain control of the company, deal with probate and coordinate advisors.
Legislation receiving Royal Assent on March 26, 2026 extended the window. Subsection 164(6) now applies to losses realized by a graduated rate estate in any of its first three taxation years, for individuals who died on or after August 12, 2024. Some estates of owners who died in 2024 or 2025 may therefore have more time than their executors realize.
Two cautions apply. First, the estate must be a graduated rate estate during the relevant year, which requires proper designation and limits how long that status can last. Second, the election must still be filed in prescribed form by the filing-due date for the estate’s taxation year in which the loss arises, together with an amended terminal return. The extended window provides more time to plan. It does not reduce the need to plan.
Questions to ask now
For owners:
- Does your will give your executor the authority to complete post-mortem reorganizations, and does it name someone capable of acting quickly?
- Will your estate have enough cash to pay the tax at death, or will that cash have to come from the corporation?
- Is corporate-owned life insurance in place, and does the shareholder agreement reflect how the proceeds will be used?
- Have past transactions, such as a capital gains exemption claim or an estate freeze, affected which post-mortem strategies will be available?
For executors:
- Has the estate been designated as a graduated rate estate, and when does each of its first three taxation years end?
- Has a valuation of the shares been obtained as of the date of death?
- Have the corporation’s tax accounts been confirmed, including the capital dividend account and any refundable tax balances?
- Has a post-mortem review been completed before the corporation pays any dividends, redeems any shares or is wound up?
The bottom line
Double taxation at death is a well-known risk, and it can usually be managed. The danger lies in assuming that a will alone addresses it, or in letting the planning window close while the estate is being administered. Owners should review how their corporate value will reach their family, not simply who will inherit the shares. Executors should seek advice before money leaves the corporation.
This article is general information only and is not tax or legal advice. Post-mortem planning depends on the specific facts, documents and applicable law, and should be implemented with qualified professional advisors.