Definition

Qualified small business corporation (QSBC) shares

Qualified small business corporation shares are shares of a Canadian-controlled private corporation that meet specific tests about the corporation’s activities, the composition of its assets, and how long the shares have been held. Meeting the QSBC tests is what makes the lifetime capital gains exemption available on a share sale.

Reviewed

QSBC status is the gateway to the LCGE, and it is a status the corporation has to be in — not something a seller elects at closing. Broadly, the tests look at whether the corporation is a Canadian-controlled private corporation, whether substantially all of its assets are used in an active business carried on primarily in Canada, and whether that has been true over a period leading up to the sale.

The most common reason companies fail

Accumulated cash and passive investments. A profitable company that has retained earnings inside the corporation for years can find that too large a share of its assets is no longer used in the active business. The business is fine; the balance sheet is the problem. Correcting it is possible but takes planning, which is why owners are advised to look at this well before a sale is contemplated.

Sources

This definition is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Canada Revenue AgencyGovernment
    Selling a business
    canada.ca·Checked Aug 14, 2026
  2. 02
    Canadian Federation of Independent BusinessResearch data
    Capital Gains Changes
    cfib-fcei.ca·Checked Aug 14, 2026
  3. 03
    Treadstone LawLegal commentary
    How the Lifetime Capital Gains Exemption Shapes the Asset vs Share Decision in Ontario
    treadstonelaw.ca·Checked Aug 14, 2026
  4. 04
    Treadstone LawLegal commentary
    Tax Law
    treadstonelaw.ca·Checked Aug 14, 2026

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