Capital Gains Inclusion Rate

The dial inside capital gains tax

Canada does not tax capital gains at their own rate. Instead, capital gains tax works through the inclusion rate: the fraction of a realized gain that is added to your taxable income, where it is taxed at your marginal tax rate like any other dollar. At today's 50% rate, a $10,000 gain adds $5,000 to your income; the other $5,000 is simply never taxed.

That makes the inclusion rate the single most powerful dial in how Canada taxes investment. Move it, and the tax on every cottage sale, share sale and business sale in the country changes at once, without touching a single bracket. How gains are calculated, what triggers them, and the exemptions all live in the capital gains tax entry; this page is about the dial itself and its surprisingly eventful history.

The full history, 1972 to today

Capital gains were not taxed at all in Canada before 1972. The tax reform that took effect that year brought them into the net at half, and governments of both stripes have adjusted the fraction ever since.

The 2024 increase that never happened

The last line of the table deserves its short story. The April 2024 federal budget proposed raising the rate to 66.67% on individual gains above $250,000 a year, and on all gains for corporations and most trusts, effective June 25, 2024. The CRA began administering the change before Parliament passed it, the effective date was deferred to 2026 in January 2025, and the measure was formally cancelled on March 21, 2025. The rate never actually changed: it is 50% for everyone, on gains of any size (as of July 2026). The capital gains tax entry covers the saga, and what it meant for people who acted on it, in detail.

The year 2000 was nearly as dramatic in the other direction: two cuts in eight months, from 75% to 66.67% in the February budget and down to 50% in the October economic statement, as Ottawa chased falling rates abroad. The rate then sat untouched for almost a quarter century.

Why the rate matters more than your bracket

For high-income taxpayers, brackets are old news: they are already in the top one, which moves rarely and by little. The inclusion rate is where the action is. At Ontario's top combined marginal rate of 53.53% (as of July 2026), the 50% inclusion rate puts the effective tax on a capital gain at about 26.8%, half the top rate. Had the 2024 proposal become law, large gains would have faced about 35.7% instead: a one-third increase in the tax on gains with no bracket changing at all.

This is why inclusion rate announcements move real behaviour in a way bracket tweaks never do. The spring of 2024 saw a rush of realizations, from cottages to family businesses to stock portfolios, ahead of a June deadline for a change that, in the end, never became law.

The policy debate, briefly

Supporters of a low inclusion rate argue that part of any long-held gain is just inflation, that lighter taxation rewards risk-taking and keeps Canada competitive for capital, and that high rates discourage people from ever selling. Supporters of a higher rate argue that a dollar of gain should be taxed like a dollar of salary, that the discount flows overwhelmingly to the highest incomes, and that a wide gap between gains and income rates invites converting one into the other. Every change since 1988 has been a rebalancing of these two views, and neither side has won permanently.

One carve-out sits outside the debate: the lifetime capital gains exemption shelters up to $1.25 million of gains (as of July 2026) on qualified small business corporation shares and farm or fishing property, whatever the inclusion rate happens to be.