12/23/2025
Day 21 – Small Business Deduction: How the first $500k is taxed. 💼
The Small Business Deduction (SBD) is a powerful growth tool for Canadian corporations.
What matters 👇
• 12% vs 50%+: In Ontario, the first $500k of active income is taxed at ~12% vs ~53% personally. Huge advantage.
• Shared limit: That $500k is shared across all associated corporations you control.
• Passive income hit: Over $50k of passive income shrinks your SBD. At $150k, it’s gone.
Bottom line: SBD rewards reinvestment. Poor structure or excess passive income, and the low rate disappears fast.
💬 Comment SBD to see if your corporation qualifies for the low rate.
📌 Follow Tax Tips Canada for Day 22! 🇨🇦