Canada Capital Gains Tax Calculator
Illustrate an ordinary capital gain using one-half inclusion and your own marginal-rate assumption. Read the official rule, limitations and CRA instructions.
Purpose
Information & official-source navigation
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Page edited
September 18, 2026
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Reference
Income Tax Act, section 38
What the official rule says: Under the general rule in section 38(a) of the Income Tax Act, one-half of an ordinary capital gain is included in taxable income. That is an inclusion rate, not a 50% tax bill.
What this tool does: It shows the gain on one disposition, its taxable portion before exceptions, and an illustration using a combined marginal tax rate you supply. It does not determine your actual tax rate or recommend a transaction.
Start with the source: Read section 38 of the Income Tax Act and CRA’s calculation and reporting instructions.
Read the result correctly
The first calculation is sale proceeds minus adjusted cost base and eligible selling expenses. For a positive, ordinary non-exempt gain, this tool then applies one-half inclusion. Finally, it multiplies that taxable amount by the combined marginal rate you entered. A large gain can cross tax brackets, so multiplying the whole taxable amount by one rate is only an illustration—not the additional tax calculated on a full return.
The old proposed $250,000/two-thirds inclusion structure is not used here. The general enacted rule above was checked on September 17, 2026. That check does not determine whether an exemption, special rule or different treatment applies to your property.
A worked arithmetic example
Suppose proceeds are $850,000, adjusted cost base is $400,000 and selling expenses are $35,000. The gain is $415,000 and the ordinary taxable portion is $207,500. If you enter a hypothetical combined rate of 30%, the illustrated tax amount is $62,250. The 30% assumption is not an official rate assigned to a province or a recommendation. Change it to see how the arithmetic changes.
What the calculator does not determine
- Whether a transaction is on capital account or business income.
- Whether the adjusted cost base and expenses you entered are correct.
- Principal-residence exemptions, capital-gains deductions, donations, reserves, deemed dispositions, rollovers or other special treatment.
- Capital-loss eligibility or offsets, depreciation recapture, alternative minimum tax, benefit changes, provincial surtaxes or the effect of crossing brackets.
- Your filing obligations or the final amount assessed by the CRA.
A negative arithmetic result is shown as a loss before special rules. It is not automatically a deductible loss or a tax refund.
Find the official instructions for your situation
Canadian Money Help consolidates information and links to official documentation. It does not provide an opinion on what you should buy, sell, claim or choose. If the official instructions do not resolve your situation, contact the responsible authority or an appropriately qualified professional.