When you hold substantial retained earnings inside your Canadian corporation, passive investment income can quietly erode your small business deduction threshold. Many Alberta business owners do not realize that capital gains, interest, and dividends accumulated within an operating company can push their active business income into significantly higher provincial and federal tax brackets. Proactive corporate tax planning allows you to identify these exposure thresholds early and structure your corporate holdings effectively. Discover how strategic portfolio oversight protects your preferential rates and keeps more capital working directly inside your enterprise.