Purification

Purification is the process of removing passive or non-active assets from a corporation so that it qualifies as a Qualified Small Business Corporation (QSBC) — a prerequisite for shareholders claiming the Lifetime Capital Gains Exemption (LCGE) on a share sale. The Income Tax Act requires that at the time of sale, and throughout the 24 months immediately preceding the sale, substantially all (generally interpreted as 90% or more by fair market value) of the corporation's assets be used principally in an active business carried on primarily in Canada.

Passive assets — such as excess cash, publicly traded securities, investment portfolios, or real estate not used in the business — can disqualify shares from QSBC status and block the LCGE claim entirely. Common purification strategies include paying dividends to reduce excess cash, repaying shareholder loans, or transferring passive assets to a separate holding company prior to sale. Each approach has its own tax implications and must be executed carefully.

Because the 24-month holding test is continuous, late-stage purification may be insufficient: assets transferred to a holding company or distributed as dividends shortly before a sale may not cure a historical period of non-qualification. Planning well in advance — ideally 24 months or more before an anticipated sale — is essential. A tax advisor with experience in owner-managed business transactions should be engaged early.

See also: QSBC, LCGE, CCPC, Capital Dividend Account.