Family Trust LCGE Multiplication Calculator
One shareholder shelters $1,275,000 on a sale. A family trust with four adult beneficiaries shelters four times that. Work out the exemptions available, the gain sheltered across the family, the tax saved and the 21-year clock.
saved against one claim
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The Exemption, Person by Person
| Item | Basis | Amount |
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One Shareholder Against the Whole Family
| Approach | Gain Sheltered | Taxable Gain | Tax |
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Conditions That Have to Hold
| Test | Requirement | Your Position |
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Points That Decide This
What to Do Next
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Disclaimer: The lifetime capital gains exemption on qualified small business corporation shares is indexed annually. The default figure used here is the 2026 amount of $1,275,000 and the field is editable because it changes each year. A capital gain realised by a discretionary trust on QSBC shares can be allocated to beneficiaries under subsection 104(21.2), and each beneficiary who is a Canadian-resident individual with unused exemption may claim it against their allocated share. The shares must meet the QSBC tests, including that at the time of sale at least 90% of the fair market value of the corporation’s assets is used in an active business carried on primarily in Canada, and that throughout the 24 months before the sale more than 50% of asset value was so used and the shares were not owned by anyone other than the taxpayer or a related person. Where a trust holds the shares, the 24-month holding period is tested at the trust level, which is why a trust settled shortly before a sale generally does not work. A cumulative net investment loss reduces the exemption a beneficiary can claim. Under the tax on split income rules in section 120.4, a taxable capital gain allocated to a beneficiary who is under 18 in the year is deemed to be a dividend and cannot be sheltered by the exemption. Adult beneficiaries may still face TOSI unless an excluded amount applies, and the taxable capital gain on QSBC shares is generally an excluded amount for individuals 18 or over. A trust is subject to a deemed disposition of its capital property on the 21st anniversary of its creation. The alternative minimum tax can apply to a large exemption claim and is not modelled here. Personal tax is applied at the Ontario top marginal rate of 53.53% on the taxable half of the gain. This page is general information, not tax or legal advice.
One Exemption Becomes Several
The lifetime capital gains exemption is personal. One individual shelters $1,275,000 of gain on qualifying shares and no more. A discretionary family trust holding those shares can allocate the gain among several beneficiaries, and each one who qualifies brings their own exemption to the table.
| Structure | Exemption Available | Tax Saved on a $6,000,000 Gain |
|---|---|---|
| One shareholder | $1,275,000 | Baseline |
| Owner and spouse | $2,550,000 | Roughly $341,000 |
| Trust, four adult beneficiaries | $5,100,000 | Roughly $1,024,000 |
This is a mainstream planning technique, not an aggressive one. It has been used for decades, it is expressly contemplated by the allocation rules, and the CRA does not attack it where the trust is real, properly documented and settled well before the sale. What defeats it is almost always timing rather than principle.
Twenty-Four Months, Tested on the Trust
The QSBC holding test requires that for the twenty-four months before the sale, the shares were not owned by anyone other than the taxpayer or a person related to them. Where a trust holds the shares, that period is tested at the trust level.
A trust settled three months before a signed letter of intent does not work. The single most common way this planning fails is that the owner started thinking about it once a buyer appeared, and by then the clock could not be started early enough.
Plan this two to three years before a sale, not two to three months. If a buyer is already at the table, the honest answer is usually that the trust will not help on this transaction. That is a difficult conversation and it is far better than a reassessment.
Minors Are Blocked, and It Costs Real Money
Under the tax on split income rules, a taxable capital gain allocated to a beneficiary who is under eighteen in the year is deemed to be a dividend. A dividend cannot be sheltered by the exemption, so the allocation achieves nothing and is taxed at the top rate.
Adults are treated differently. The taxable capital gain on qualifying shares is generally an excluded amount for a beneficiary aged eighteen or over, so the exemption is available. That difference is why the ages of the children at the time of the sale matter as much as the structure.
| Beneficiary | Allocation Treated As | Exemption Available |
|---|---|---|
| Adult, 18 or over | Taxable capital gain | Yes |
| Minor, under 18 | Deemed dividend under TOSI | No |
CNIL Quietly Reduces the Claim
A cumulative net investment loss reduces the exemption an individual can claim. It builds where investment expenses exceed investment income, and interest on money borrowed to invest is the usual cause.
Most family members have no CNIL at all. The owner frequently does, because owners are the ones who borrow to invest. It is worth checking each beneficiary’s position on their notice of assessment well before a sale, since a CNIL balance can often be cleared with a few years of planning.
The Twenty-One Year Clock Runs Regardless
A trust is deemed to dispose of its capital property at fair market value on the twenty-first anniversary of its creation. There is no exemption from this and no filing that avoids it.
For a trust created to hold growing shares, that deemed gain can be very large and there is no sale generating cash to pay the tax. The usual answer is to distribute the property to Canadian-resident beneficiaries on a rollover basis before the anniversary, which resets the position but requires the beneficiaries to actually receive the shares.
The twenty-first anniversary is a date, not an event, and nothing reminds you. Trusts settled in the early 2000s are reaching it now, frequently held by families who have not thought about the trust in fifteen years. Please put the date in a calendar the moment the trust is created.
What the Trust Has to Actually Be
- Properly settled with a real settlement property and a valid trust deed
- Genuinely administered, with trustee resolutions for every allocation
- Filing T3 returns annually, including under the expanded reporting rules
- Holding the shares itself, not merely named in a plan nobody executed
- Allocating income in the year, with amounts payable to beneficiaries
- Advised by a lawyer on the deed, since this is a legal document
A trust that exists on paper but was never administered is the second most common failure after timing. Trustee resolutions written years later to support an allocation are not contemporaneous and are treated accordingly.
The Cost of Setting It Up
A family trust with the associated share reorganisation is not a small engagement. Legal fees for the trust deed and the freeze, accounting for the valuation and the elections, and annual T3 filings thereafter all cost money.
Against a saving that runs to seven figures on a substantial sale, the arithmetic is not close. Against a business that may never sell, or may sell for a modest figure, it is a different question and worth answering honestly before spending anything.
What This Calculator Does Not Cover
- Alternative minimum tax, which can apply to a large exemption claim
- Whether the shares qualify as QSBC, which is a separate test
- Purification where the corporation holds too much passive property
- The attribution rules where the settlor retains an interest
- Provinces other than Ontario
- The buyer’s willingness to structure the deal as a share sale at all
The exemption is worth planning for years ahead of a sale and worth nothing the week before one. Our capital gains tax planning service covers the freeze, the trust, the purification and the allocations.
Frequently Asked Questions
Common questions on multiplying the exemption.
Related Calculators and Guides
More tools for owners planning an exit.
This Needs Two Years, Not Two Months
Send us the corporate structure, the shareholdings and a realistic sale timeline. We will test whether the shares qualify, model the freeze and the trust, and tell you plainly if there is no longer time to do it properly.