Death triggers a sale that never happens
The moment you die, the Income Tax Act treats you as having sold every share you own at fair market value immediately before death, even though no buyer appears and no money changes hands. This is the deemed disposition, and it is the reason valuation matters so much for private-company shares: the difference between that fair market value and your cost base becomes a capital gain on your final personal return. If you founded the company, your cost base is often a nominal amount from decades ago, so nearly the entire value of the business is gain. Half of the gain is taxable, and on a large gain most of it lands in the top Ontario bracket, which works out to roughly 27 cents of tax on every dollar of gain.
Two things soften that picture. Shares left to your spouse, or to a qualifying spousal trust, roll over at your cost base automatically, deferring the whole bill until your spouse sells or dies; the executor can also elect out of the rollover, share by share, where triggering some gain is actually useful. And if the shares are qualified small business corporation shares at death, the $1.25 million lifetime capital gains exemption can shelter that much of the gain. QSBC status has asset tests that look back two years, so an investment portfolio that quietly grew inside the company can spoil the exemption exactly when the family needs it. Farm corporations are their own world, with intergenerational rollovers that can pass qualifying farm property to children without triggering the gain at all; we cover that side in our farm business incorporation page.
The estate, meanwhile, inherits the shares at a cost base equal to that same fair market value. That reset is what makes post-mortem planning possible, and it is why the value has to be right twice: once for your terminal tax bill, and again for everything your executor does with the shares afterward.
Your executor names the number first; CRA judges it later
No CRA appraiser shows up to set a value. Your executor files the terminal return with a reported fair market value for the shares, and CRA reviews it, asks questions, or reassesses it if the support looks thin. Fair market value has a settled meaning from the case law: the highest price available in an open and unrestricted market, between informed and prudent parties dealing at arm's length, neither of them forced to act. For a private company there is no stock quote to point at, so the number is an opinion, and the quality of the opinion is what CRA actually tests.
For a company of real size, the value should come from a formal valuation, prepared or reviewed by a Chartered Business Valuator working with the estate's CPA. CRA has its own business equity valuers, and it can challenge a terminal-return value years after filing, with interest running the whole time. What holds up is a written analysis tied to real records: year-end financial statements, normalized earnings, appraisals for any real estate, the shareholders' agreement, and the corporate minute book. What does not hold up is a number that felt about right at the kitchen table, or the price from a life-insurance application form filled in optimistically years earlier.
This is also where legal coordination starts, not ends. The executor's lawyer needs the same value for probate and for transmitting the shares, the surviving shareholders may need it to trigger a buy-sell, and the beneficiaries may need it to divide the estate fairly. One defensible valuation should feed all of those uses, prepared once and early.
How the number is actually built
A private company is valued by whichever approach best reflects where its value lives: its earnings, its assets, or occasionally the market evidence for businesses like it. The starting point is what the company actually is, not a universal formula:
| What the company is | How value is typically approached |
|---|---|
| Profitable operating company | Capitalized or discounted earnings or cash flow, with a multiple that reflects size, customer concentration and how transferable the business is without you |
| Holding company with investments | Adjusted net asset value: each asset marked to fair market value, minus liabilities and the embedded corporate tax on accrued gains |
| Real-estate-heavy company | Current appraisals of the properties first, then a net asset value built on top of them |
| Professional practice or owner-dependent business | Earnings-based, but discounted hard for personal goodwill that dies with the owner and cannot be handed to a buyer |
| Minority position in someone else's company | Pro-rata value reduced by discounts for lack of control and lack of marketability, each supported by analysis rather than assumed |
Redundant assets sit on top of any earnings-based value. Cash, an investment account or a paid-off building that operations do not need are added at their own fair market value, because a real buyer would pay for the business and then pay again for the extras. This is where owners are most often surprised: the modest operating company and the investment portfolio that accumulated inside it are valued together, because what you own is shares of the whole thing.
Transferability drives the multiple more than most owners expect. A business with contracts, a management layer and customers loyal to the firm is worth more per dollar of earnings than one where the phone rings for the founder personally. At death that question stops being theoretical, which is why the same company can honestly be worth less the day after the owner dies than the day before, and a valuation done for an estate is allowed to say so.
Where CRA pushes back
The valuation fights CRA actually picks are predictable, and most are avoidable with planning. Four come up again and again in estates:
- A buy-sell price that ignores reality. The price in a shareholders' agreement does not bind CRA unless the agreement is a genuine mechanism that produces fair market value, the kind arm's-length parties would sign. A fixed price no one updated since 2012 can still set what your partner pays the estate, while CRA taxes the estate on the real, higher value: the worst of both worlds.
- Discounts without support. Minority and marketability discounts are legitimate, but claiming them as convenient round numbers invites reassessment. The analysis has to show why this holding, in this company, deserves the discount taken.
- Goodwill labelled personal when it is not. If the client base, the contracts and the team would survive you, the goodwill is commercial and belongs in the value. Personal goodwill only reduces the number where the evidence shows value genuinely dies with the owner.
- Life insurance counted backwards. For valuing your shares at death, a policy the corporation owns on your life is counted at its cash surrender value, not the death benefit. That specific rule stops the insurance payout from inflating your terminal capital gain, and it is one of the reasons corporate-owned coverage is efficient; what happens to the payout itself is covered in how corporate-owned life insurance affects an estate.
One value, many consequences
Once the value is set, it drives far more than the terminal tax bill, which is why succession planning treats it as the central number. The same fair market value fixes the estate's cost base and therefore shapes the post-mortem strategy the executor chooses to avoid double tax on the corporation's value. It feeds the probate calculation where the shares pass under a probated will. It sets the payout under any buy-sell clause, and it is the number the family uses to equalize an estate where one child takes the business and the others take other assets. An error does not stay contained: a value set too low understates a child's inheritance, and a value set too high creates tax on wealth that is not really there.
Estate and trust tax filings inherit the number too. The estate's T3 returns, any spousal trust created by the will, and a later sale by the heirs all measure their own gains from the value reported at death. Getting it supported once, at the start, is cheaper than defending it piecemeal for a decade.
The facts that change the number, and the tax on it
When we work through a share valuation for an estate, or for an owner planning ahead of one, the answer turns on a short list of facts:
- Who inherits. A spouse means rollover and deferral; children or a family trust for them means tax now, at fair market value.
- Whether the shares qualify for the exemption. QSBC status at death can make $1.25 million of gain disappear; passive assets that crept in over the years can spoil it.
- What the company owns. An operating business, an investment portfolio and real estate are valued differently and taxed differently on the way out.
- What the shareholders' agreement says. A well-drafted valuation mechanism protects the estate and the surviving partners alike; a stale one creates a gap between what the estate receives and what it is taxed on.
- Corporate-owned insurance. It holds the share value down at death and can fund the tax, but only when ownership and beneficiary designations are set up correctly.
- Whether a freeze was done in life. An estate freeze caps the value that dies with you at today's number and passes future growth to the next generation. It is the single biggest lever over everything on this page.
Most of those facts can still be arranged while you are alive, which is why the valuation question is really an estate planning question in disguise. Our guide to estate planning for Canadian business owners covers the full picture, and when to start is almost always earlier than people think. As a business estate planning CPA in Ontario, we run the valuation, the freeze analysis and the terminal-return projection as one exercise through our estate planning service, working alongside your lawyer and valuator, and every engagement is scoped and quoted in writing after a free 15-minute discovery call.
