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Purifying Your Company of Passive Assets Before a Share Sale

Excess cash or investments in your company can threaten LCGE eligibility. Learn what purification means, why timing matters and what to ask your advisers.

Buying & Selling a Business5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • Purification means reducing passive assets such as surplus cash or investments so the company better meets the asset tests for the LCGE.
  • The 50% test looks at the full 24 months before the sale, so purifying just before closing may not be enough.
  • Moving shares or assets to another corporation can have its own tax cost, including a deemed dividend in some non-arm's length sales.
  • Purification is technical and should be planned with a lawyer and accountant well before a sale.

Many owners have built up cash or investments inside their company over the years. That is sensible for the business, but it can cause trouble when you sell. If too much of the company's value is passive, the shares may not qualify for the lifetime capital gains exemption.

Purification is the general term for cleaning up the company's balance sheet so that it is mostly active business assets. This article explains why it matters, what the relevant tests look at, and the questions to ask. It does not set out step-by-step purification mechanics, because those are technical and depend on your structure.

Why passive assets can threaten the exemption

To use the exemption, your shares must be qualified small business corporation shares. One condition is that, throughout the 24 months before the sale, more than 50% of the fair market value of the corporation's assets is attributable to assets used principally in an active business carried on primarily in Canada, or to certain shares or debt of connected corporations.

Surplus cash, portfolio investments and other assets not used in the business work against that test. A separate, stricter asset test also applies at the time of sale. The exact threshold should be confirmed with a tax professional against the current definition in section 110.6(1).

The stakes are significant. The limit is $1,250,000 for dispositions after June 24, 2024, and $1,275,000 for dispositions in 2026. Only qualifying shares can use it.

Timing: why last-minute purification may not help

The 50% test applies throughout the 24-month period, not just on closing day. A balance sheet that is clean on the sale date but was heavily passive for most of the prior two years may still fail that test.

The holding-period test also looks back 24 months and asks that the shares not be owned by anyone other than you or a related person or partnership. Some reorganizations issue new shares, and shares issued after June 13, 1988 are deemed to have been owned immediately before issue by an unrelated person, which can break the holding period, subject to exceptions.

For this reason, purification is best treated as a multi-year habit rather than a closing-week task. If a sale is possible within the next few years, start the review now.

Common approaches and their trade-offs

There are several general ways owners deal with surplus assets. Which one fits depends on your structure, your tax position and the buyer, so the table is a map of questions rather than a set of steps.

General approachWhat to ask about
Use the cash in the businessDoes the spending actually add active business assets, and does it make commercial sense?
Pay the cash out to shareholdersWhat tax applies to the payout, and does it change anything else about the company?
Move surplus assets to a separate companyWhat are the tax effects, and does the move affect the 24-month holding test or create new shares?
Sell the shares to a holding companyCould a deemed dividend apply when selling to a corporation you do not deal with at arm's length?

On the last row, section 84.1 applies when a Canadian-resident individual sells shares that are capital property to a corporation with which the individual does not deal at arm's length. A dividend is deemed paid to the seller, and paid-up capital is reduced. This can apply even when a seller wants to use their exemption, so sales to your own holding company need careful review.

Other points to keep in view

Purification can solve one problem and cause another. A step that helps the asset tests may add a tax cost elsewhere, so the plan should be modelled as a whole.

What to do next

Frequently asked questions

What does it mean to purify a corporation?

It means reducing passive assets, such as surplus cash and investments, so that the company's assets are mostly used in an active business. The goal is to help the shares meet the asset tests for the exemption, including the 50% test over 24 months.

Can I purify the company right before closing?

It may not be enough. The 50% test looks at the whole 24 months before the sale. Some steps may still help with the stricter sale-date test, so ask your advisers what is possible for your facts.

Is it safe to sell my shares to my own holding company?

Not automatically. Where an individual sells shares to a corporation they do not deal with at arm's length, a deemed dividend can arise. Special intergenerational transfer rules can change the result in some family sales, but they have strict conditions.

Who should I talk to about purification?

Both a lawyer and an accountant are usually involved, because the steps affect corporate structure and tax. Speak to them early, before you sign a letter of intent or agree on a closing date.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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