Tax Planning

Understanding Canada’s Capital Gains Deduction Expansion & AMT Changes for Entrepreneurs

Recent changes broaden small business capital gains rules and tweak alternative minimum tax—especially meaningful for business-owners planning exits.

By NomadicTax Research Team • 5-8 min read • February 18, 2026

## Expansion of Capital Gains Deduction & AMT tweaks One of the latest updates in the CRA’s "What’s New" pages explains that **for qualifying dispositions after December 31, 2024**, the definition of an eligible small business corporation share has been expanded. Prior rules required shares to be common shares; now other share types are included. Also, the **period to acquire replacement shares** under the rollover has been increased.([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/personal-income/line-12700-capital-gains/whats-new-capital-gains.html?utm_source=openai)) Simultaneously, there are proposed changes to the **Alternative Minimum Tax (AMT)**: the calculation of adjusted taxable income for AMT purposes has changed (affecting Canadians with incentives, deductions, or those subject to AMT triggers).([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/personal-income/line-12700-capital-gains/whats-new-capital-gains.html?utm_source=openai)) ## Why this matters for entrepreneurs - Entrepreneurs planning a business sale or exit may now qualify for the capital gains deduction even with non-common share structures, broadening strategy flexibility. - The extended period to acquire replacement shares gives breathing room for reinvestment planning without losing rollover benefits. - For those near AMT thresholds, updated calculations could increase exposure—deductions or tax credits may impact AMT liability more than before. ## Example scenario Let’s say Sam has preferred shares in a startup that are not “common shares,” but he sells them in 2025. Under prior rules, these might fail eligibility for small-business capital gains deductions. Now, they may qualify—if the share structure meets the revised eligible small business corporation definition. Meanwhile, if Sam has used numerous tax incentives (R&D, investment credits, etc.), his AMT calculation may lead to a non-zero AMT liability where previously he avoided it. ## What you can do today - Review your share classes and legal structure to ensure designation as an eligible SBC share; consider converting share form if possible before year end. - Check upcoming years’ expected income and deductions to model potential AMT exposure. If you expect high deductions, consider deferring or spreading them. - On sales, ensure accounting records support the timing and nature of the sale (i.e. dates, share classes, reinvestment). ## Implications for tax preparation & reporting Tax preparers should be aware of updated forms and worksheets—CRA has updated “what’s new” pages reflecting changes in Line 12700 and relevant capital gains sections.([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/personal-income/line-12700-capital-gains/whats-new-capital-gains.html?utm_source=openai)) Records of share dispositions, acquisition of replacement shares, and clear documentation will be vital. ## Bottom line If you’re an entrepreneur considering exiting a business or selling shares, the expanded definitions for small business gains and relaxed accordion around replacement shares open doorways. But with AMT changes, there’s a flip side—plan carefully to optimize benefit and minimize unexpected tax exposures.