ABOUT THE COURSE

The small business deduction used to be straightforward. A CCPC earned active business income, claimed the rate reduction on up to $500,000, and the combined Ontario rate was 12.2%. That structure still exists, but two sets of rules have made it dramatically harder to keep. The first is the sharing requirement: since 2016, the $500,000 limit must be divided among all corporations that share a common source of income through a partnership or a payor corporation, collapsing what used to be multiple independent claims into one. The second is the passive income grind: once adjusted aggregate investment income of the associated group exceeds $50,000, the business limit is reduced at $5 per dollar, fully eliminated at $150,000. A professional corporation that has been retaining earnings at the small business rate for a decade may already be past the threshold without realizing it.

This course works through the technical rules that determine how much SBD a corporation can actually claim:

• The CCPC definition under ss.251(5)(b) and 110.6(14)(b): a Canadian corporation not controlled by non‑residents, public companies, or a combination; why 50% non‑resident ownership still qualifies; why options and rights to acquire shares can strip CCPC status; the cautionary implication of shareholder agreements when a co‑shareholder later becomes a non‑resident
• Active business income: income from any source other than a specified investment business, personal services business, or passive investment income; why income incidental to an active business (e.g., interest on short‑term deposits supporting cash flow or a performance bond) can qualify as active; why capital gains are excluded from ABI
• Designated member rules: when a corporation provides services or property (directly or indirectly) to a partnership and a partner is a shareholder or related to a shareholder, the corporation is a designated member and the $500,000 limit is shared across the whole structure — one core business, one SBD
• Specified corporate income (SCI): when A Co, B Co, and C Co all bill a payor corporation ABC Co in which each has a common shareholder, the four corporations share a single $500,000 SBD allocation by designation
• Management fee mechanics: the management company arrangement that was widely used for income splitting; why it now requires the SBD to be shared with the payor; the additional risks of HST leakage (management fees are taxable, a dentist's PC cannot recover HST), reasonableness challenges, PSB designation exposure, and source deduction liability if fees are treated as employment income
• The passive income grind under ss.125(5.1): adjusted aggregate investment income (AAII) defined; the $50,000-$150,000 phase‑out range; the $5-per-dollar reduction rate; why FAPI from a controlled foreign affiliate is included; why capital losses carried forward or back do not reduce AAII; why timing of capital gains realizations matters
• The ss.125(5.2) anti‑avoidance rule: deems two related but unassociated corporations associated for passive income purposes if one transfers or lends property to the other and one purpose was to reduce passive income; the "one of the reasons" threshold is low — simple creditor proofing strategies may be caught; once triggered, cannot be undone

The complications most often arise for professional corporations with several years of retained earnings — typically a CPA, dentist, or physician whose passive assets have grown while the active business is still operating. The course addresses the specific planning question these clients ask: what can actually be done to protect or recover the SBD.

The course also covers the comparison between all three corporate tax rate bands relevant to Ontario owner‑managers: the 12.2% small business rate, the 18.2% Ontario‑only rate that arises when federal SBD is lost, and the 26.5% general rate. In each scenario, the tax deferral advantage over personal rates remains substantial regardless of which rate applies. The SBD is worth fighting for — but understanding exactly when the fight is worth having, and when the Ontario eligible dividend outcome actually wins, is the analytical skill this course develops.