--- title: "Canadian Capital Gains Tax Calculator 2025" description: "Calculate your capital gains tax in Canada for 2025. Includes province selector, 50% inclusion rate, capital loss offsets, and after-tax proceeds. Based on CRA T4037 guide." canonical_url: "https://www.themoneypocket.com/tools/canada-capital-gains-tax-calculator" last_updated: "2026-05-01T16:53:16.176Z" --- **Instantly calculate your Canadian capital gains tax.** Enter your purchase price, selling price, and province — the calculator applies the 2025 inclusion rate, handles capital loss carryforwards, and shows your after-tax proceeds. ## How capital gains tax works in Canada (2025) When you sell a capital property — stocks, real estate, crypto, or other assets — for more than its adjusted cost base (ACB), you have a capital gain. Only **50% of that gain is taxable** (the inclusion rate for 2025). The taxable portion is added to your income for the year and taxed at your marginal rate. **The formula:** 1. Proceeds of disposition − Selling costs − ACB = **Capital gain** 2. Capital gain × 50% = **Taxable capital gain** (enters line 12700) 3. Taxable capital gain × your marginal rate = **Tax owed** ## What counts as the ACB? The adjusted cost base is your purchase price plus any costs to acquire the asset (commissions, legal fees). For real estate, capital improvements are also added. For stocks purchased in multiple lots, the CRA requires a weighted average ACB across all shares of the same security. ## Capital loss carryforward If you have net capital losses from prior years, you can apply them against 2025 gains — reducing your taxable capital gain and the tax you owe. Losses can also be [carried back three years or forward indefinitely](/tools/canada-capital-loss-planner). ## Provincial rates Tax on capital gains is combined federal + provincial. The calculator auto-fills the top marginal rate for your province as a starting point — adjust it down if your total income puts you in a lower bracket. ## Related tools and guides - [Principal Residence Exemption Calculator](/tools/principal-residence-exemption-calculator) - [ACB Calculator for Stocks](/tools/acb-calculator) - [Capital Loss Planner](/tools/canada-capital-loss-planner) - [How Capital Gains Tax Works in Canada (2025)](/articles/how-capital-gains-tax-works-canada-2025) - [Capital Gains Inclusion Rate — History & 2025](/articles/capital-gains-inclusion-rate-canada) - [Capital Gains Tax on Crypto in Canada](/articles/capital-gains-tax-crypto-canada-2025) - [Lifetime Capital Gains Exemption Canada 2025](/articles/lifetime-capital-gains-exemption-canada-2025) --- *Disclaimer: For planning purposes only. Tax rules change annually. Consult a qualified Canadian tax professional.*