Estate freezes: locking in value for the next generation

Canada does not have an estate tax, but it does have a deemed disposition on death: a person is generally treated as having sold their capital property at fair market value immediately before dying — the deemed disposition explained in the CRA's Guide T4037, Capital Gains. For an owner whose corporation keeps growing, that means an unfunded and steadily increasing tax liability attached to shares that produce no cash. An estate freeze is the standard answer to that problem.

What a freeze actually does

In a freeze, the founder exchanges their common (growth) shares for preferred shares with a fixed redemption value equal to the company's value today. New common shares — the ones that will absorb all future growth — are then issued, usually to the next generation or to a family trust for a nominal amount.

From that point the founder's shares are worth what they were worth on the freeze date, and no more. The tax bill on death that relates to those shares is effectively capped, which makes it something that can be estimated and funded rather than guessed at. Everything the business earns after the freeze belongs, in value terms, to the new common shareholders.

The mechanics

Freezes are done through a corporate reorganisation, most often a share exchange under section 86 or a transfer under section 85 — the same election described in our guide to section 85 rollovers. Either way the founder should not realise a gain on the exchange itself; the point is to move future growth, not to trigger tax today.

A valuation is central. The freeze value has to be defensible, because if the CRA later concludes the frozen shares were undervalued, the difference can be treated as a benefit conferred on the new shareholders. Freeze documents therefore normally include a price-adjustment clause so the redemption amount can be corrected.

Why a family trust is so common

Naming a specific child as the new growth shareholder means making a succession decision years before you have to. A discretionary family trust holding the new common shares avoids that: the beneficiaries are defined, but who ultimately receives what is decided later. A trust can also make it possible, with advance planning, for more than one family member's lifetime capital gains exemption to be used if the business is eventually sold. Trusts carry their own compliance burden and their own deemed-disposition rules, so they are not free.

When a freeze fits — and when it does not

A freeze tends to make sense when the business has real accumulated value, the owner expects it to keep growing, and there is a genuine intention to pass value to family or to a co-owner. It fits naturally alongside a holding company, which is often where the frozen shares end up.

It fits poorly when the business value is volatile or still small, when the owner may need the growth for their own retirement, or when there is no one to freeze in favour of. Freezing early feels prudent and occasionally is, but a founder who freezes at a low value and then needs the company's growth to fund their own retirement has given away the wrong thing. Refreezes at a lower value are possible in some circumstances, but they are a repair, not a plan.

The traps

• Tax on split income. Dividends paid to family members out of a frozen structure can be caught by the TOSI rules and taxed at the top rate. A freeze does not create income splitting on its own.
• Attribution. Where a minor child or a spouse is involved, attribution rules can push income or gains back to the founder.
• Purification. If the exemption is part of the long-term plan, the operating company has to keep qualifying, which usually means keeping passive assets out of it.
• The 21-year rule. Trusts face a deemed disposition of their property on a long cycle, which has to be planned for well before it arrives.

The bottom line

An estate freeze is a well-established piece of Canadian succession planning, not an aggressive one. But it is a permanent restructuring of who owns the growth in your business, and the details — valuation, share terms, trust drafting, control — determine whether it works. It needs a CPA and a tax lawyer looking at your own family and business facts before anything is implemented. That work sits squarely in business advisory, and it is worth starting the conversation years before you expect to need it.

This article is general information for Canadian business owners and is current as of July 2026. It is not tax, legal or accounting advice, and it does not create a client relationship. Tax rules change and your situation is unique — please speak with a CPA before acting on anything here.