The transition to the new capital gains inclusion rate structure took effect on January 1, 2026, after years of proposals, deferrals, and political turbulence around what is now, finally, legislated reality. Individual Canadians pay the 50% inclusion rate on the first $250,000 of capital gains in any calendar year; above that threshold, the inclusion rate rises to 66.67%. Corporations pay 66.67% on all capital gains, with no lower-rate tranche.
That structure has meaningful implications right now for two reasons specific to the current market environment. First, Canadian energy stocks have produced substantial unrealized gains for clients who held through the war-driven oil price surge since February. Second, U.S. equities have reached new all-time highs, with the S&P 500 closing above 7,399 as of May 8 and having risen more than 13% since late March. Managing those gains strategically, rather than allowing them to accumulate and trigger at the worst possible time, is the planning conversation May 2026 demands.
The Corporate Account Angle Most Advisors Are Missing
The flat two-thirds inclusion rate for corporations is the element of the 2026 change that has received the least public attention but carries the largest planning consequence for the advisor who works with incorporated business owners. Under the prior 50% inclusion rate, corporate investment accounts had a meaningful tax advantage. The shift to 66.67% on all corporate capital gains compresses that advantage significantly.
For incorporated professionals and small business owners who have been accumulating investment assets inside their operating or holding companies, this is a mandatory review trigger. The question is not simply whether the current tax rate is higher than before. The more important question is whether the assets currently held inside the corporation are optimally structured relative to what the client would hold personally through a TFSA, RRSP, or FHSA. In many cases, the answer will involve reviewing shareholder loan structures or reconsidering the pace at which the corporation is paying dividends to reduce the asset base subject to the higher corporate inclusion rate.
TFSA as the First Line of Defence
The TFSA remains the most powerful and underutilized planning tool for clients with meaningful non-registered capital gains exposure. Capital gains inside a TFSA are completely tax-free. With cumulative room now at $102,000 for eligible Canadians, the strategic question for any client with significant embedded gains in non-registered accounts is straightforward: are they maximizing TFSA room before realizing gains elsewhere?
The $250,000 individual threshold resets each calendar year, creating an annual planning opportunity to realize gains strategically across years rather than triggering a large gain in a single year at the higher rate. Clients with energy holdings that have appreciated substantially since February, or U.S. equity positions that have risen sharply since late March, may find that 2026 is the right year to realize some gains and establish a new cost base. That conversation requires a full picture of other capital gains, capital loss carry-forwards, and account structure, and it requires it well before year-end.