The short answer: the lifetime capital gains exemption can shelter roughly $1.275 million of gain per person on a qualifying share sale in 2026, and for a family that has planned properly it can shelter several multiples of that. It is also the single most common reason a sale gets restructured at the eleventh hour, because the shares have to qualify and many owner-managed companies discover too late that theirs do not.
What the exemption is
The lifetime capital gains exemption, usually shortened to LCGE, lets an individual resident in Canada shelter capital gains realized on the disposition of qualified small business corporation shares. The exemption was increased to $1.25 million effective for dispositions after June 24, 2024, and indexation resumed in 2026, bringing it to approximately $1.275 million. It is a lifetime limit, not annual, and it is reduced by any prior use.
One point worth clearing up because it caused genuine confusion for a year and a half: the proposal to raise the capital gains inclusion rate from one half to two thirds was cancelled in March 2025. The inclusion rate for individuals remains fifty percent. A great deal of planning done in 2024 was driven by an expected change that never took effect, and some of it deserves revisiting.
The exemption applies to share sales. It does not apply to an asset sale, where the company sells its business and the proceeds land inside the corporation. This is the fundamental tension in most private company transactions and we cover it in our note on the difference between an asset sale and a share sale.
The three tests your shares must meet
Shares qualify as QSBC shares only if all three conditions are satisfied. Each one catches real businesses.
The small business corporation test, applied at the moment of sale. At the time of disposition, at least ninety percent of the fair market value of the corporation’s assets must be used principally in an active business carried on primarily in Canada, or be shares or debt of connected small business corporations. Ninety percent is a demanding threshold.
The twenty-four month asset test. Throughout the twenty-four months immediately before the sale, more than fifty percent of the fair market value of the company’s assets must have been used principally in an active business carried on primarily in Canada. This is a lookback, which is why cleanup cannot be done the week before closing.
The twenty-four month holding period test. The shares must not have been owned by anyone other than the seller or a person or partnership related to the seller throughout the twenty-four months before the sale.
Why so many companies fail the asset tests
The usual culprit is passive assets accumulated inside the operating company. Successful businesses retain earnings, and those retained earnings frequently sit as cash, marketable securities, or an investment portfolio inside the same corporation that runs the business. Every dollar of that reduces the active business asset percentage.
Excess cash beyond what the business reasonably needs for working capital is the most common problem, and the one owners are most surprised by. A profitable company that has not paid dividends for a decade can easily fall below ninety percent on cash alone.
Investment portfolios and marketable securities held in the operating company.
Real property not used in the business, including rental property and land held for appreciation.
Loans to shareholders or to related companies that are not connected small business corporations.
Life insurance policies with significant cash surrender value.
The remedy is purification: moving offside assets out of the operating company, typically to a holding company, through dividends or a corporate reorganization. Done well in advance, it is routine. Done under deal pressure it is expensive, sometimes impossible, and occasionally forces the transaction into an asset sale that costs the vendor far more than the planning would have.
Multiplying the exemption across a family
Each individual has their own lifetime exemption. Where a spouse, adult children, or a family trust hold shares, each shareholder may be able to claim their own exemption on their portion of the gain, which multiplies the sheltered amount substantially.
This is not something to arrange during a sale. Shares issued to family members shortly before a transaction attract attention, the twenty-four month holding period has to be satisfied, the attribution rules and the tax on split income rules both apply, and a family trust must have been properly settled and administered. Structures put in place years ahead work. Structures assembled during a deal frequently do not.
Crystallization and timing
Crystallization means triggering a capital gain deliberately, while the shares currently qualify, in order to use the exemption and lock in a higher adjusted cost base before circumstances change. Owners consider it where the company is about to acquire assets that would fail the tests, where a future sale might be structured as an asset sale, or simply where the shares qualify now and might not later.
It has real costs. It can trigger alternative minimum tax, it uses exemption room permanently, and it involves professional fees for a transaction that produces no cash. Whether it makes sense depends on the probability and timing of an eventual sale, which is exactly the kind of question an independent business valuation helps answer, because crystallizing requires a defensible value.
Where the exemption interacts with deal structure
Even in a clean share sale, several common structures affect how much of the exemption a vendor actually gets to use.
Vendor take-back notes. Where part of the price is paid over time, a capital gains reserve may allow the gain to be recognized across up to five years. That can be useful for managing alternative minimum tax and marginal rates, but it also means the exemption is claimed progressively rather than all at once, and it leaves the vendor exposed to the buyer’s performance. See our note on vendor take-back financing.
Earnouts. The tax treatment depends on how the earnout is drafted, and the difference between a payment treated as proceeds of disposition and one treated as income is substantial. This needs tax input at the drafting stage, not afterwards. See our note on earnouts in business sales.
Rollover equity. Where a vendor reinvests part of the proceeds into the buyer’s entity, a section 85 rollover may defer tax on the rolled portion. That defers gain rather than sheltering it, and it interacts with how much exemption is available on the cash portion. Our note on section 85 rollover valuations covers the valuation requirements.
Alternative minimum tax. Claiming a large exemption in a single year can trigger AMT, which is recoverable against regular tax over the following seven years but affects cash flow in the year of sale. Modelling this before closing avoids an unwelcome surprise.
Holdbacks and escrow. Amounts held back pending indemnity claims still generally form part of proceeds, so tax can be payable on money not yet received. Sizing the cash at closing against the tax bill is a basic piece of planning that owners regularly overlook.
How this shapes deal negotiations
Vendors want a share sale for the exemption and for capital gains treatment on the balance. Buyers frequently prefer an asset purchase for the tax basis step-up on depreciable assets and to avoid inheriting historical liabilities. Both positions are rational and the gap is real money.
In practice it is bridged through price. A vendor who understands the after-tax difference between the two structures can quantify what a share sale is worth and negotiate accordingly, offering the buyer part of the benefit rather than conceding the structure outright. A vendor who has not done that analysis tends to accept whatever the buyer proposes.
This is why the tax conversation belongs at the start of a process, not after a letter of intent lands. Our notes on letters of intent in private company sales and how to prepare a business for sale cover the sequencing, and our mergers and acquisitions practice works alongside your accountant and tax counsel rather than in place of them.
A necessary caveat: this note is general information, not tax advice. The rules are detailed and the consequences of getting them wrong are expensive. Every situation needs to be reviewed by your own accountant and tax advisor against your specific facts.
Frequently asked questions
How much is the lifetime capital gains exemption in 2026?
Approximately $1.275 million per individual for qualified small business corporation shares. The limit was raised to $1.25 million for dispositions after June 24, 2024, and indexation to inflation resumed in 2026. It is a lifetime limit reduced by any prior claims.
Did the capital gains inclusion rate go up to two thirds?
No. The proposed increase from one half to two thirds was cancelled in March 2025, and the inclusion rate for individuals remains fifty percent. Planning done in 2024 in anticipation of that change is worth revisiting with your accountant.
Can I use the exemption if I sell the assets instead of the shares?
No. The exemption applies to dispositions of qualifying shares. In an asset sale the company sells the business, the proceeds are taxed inside the corporation, and extracting them to the shareholder is a separate taxable event. This is the main reason vendors push for share sales.
What is purification and when should I do it?
Purification means moving passive assets, usually excess cash, investments, or non-business real estate, out of the operating company so it meets the ninety percent active asset test. Because there is also a twenty-four month lookback requiring more than fifty percent active assets, purification needs to happen well before a sale. Two years ahead is a reasonable planning horizon.
Can my spouse and children also claim the exemption?
Potentially, where they hold shares in their own right or through a properly structured family trust. Each individual has their own lifetime limit, so this can multiply the sheltered amount considerably. It requires planning years in advance, and the holding period, attribution, and tax on split income rules all have to be worked through with a tax advisor.
Next steps
If you expect to sell your business in the next few years, the time to confirm your shares qualify is now, not when a buyer is at the table. We work alongside owners and their accountants to understand what a business is worth, what structure the market will accept, and what the after-tax outcome actually looks like. Review our mergers and acquisitions advisory and business valuation services, or contact us directly for a confidential, no-obligation conversation.
