About Us
Why we built this
If you've ever tried to calculate how much tax you owe after a successful year in the stock market, you've probably realized how incredibly confusing the Canadian tax system can be.
Most basic capital gains calculators are dangerously simple. Because Canada uses a progressive tax system, your market profits stack directly on top of your standard T4 salary. If a calculator doesn't ask for your regular day job salary, it will calculate your tax bracket incorrectly, leaving you with a massive, unexpected debt to the CRA in April.
Furthermore, recent changes to the Canadian tax code—specifically the new 66.67% inclusion rate on capital gains over $250,000—have rendered many older online calculators completely obsolete.
Finally, active day traders are often left completely in the dark. The CRA taxes high-frequency, active trading as 100% Business Income rather than Capital Gains. We built this tool to instantly show the massive tax difference between being classified as a Casual Investor versus an Active Day Trader.
The N01 Labs Difference
The Canadian Stock Tax Calculator is a proud product of N01 Labs, an independent software development company based right here in Toronto, Canada.
N01 Labs operates a little differently than traditional tech companies. We are a micro-studio driven by a single human founder working in close collaboration with advanced AI models. This unique human-AI partnership allows us to write highly optimized code, design intuitive user interfaces, and deploy premium web applications faster and more efficiently than ever before.
Our Promise
- Accuracy: We use the exact 2026 CRA marginal tax brackets, correctly apply the new tiered capital gains inclusion rates, and handle complex provincial rules like the Ontario surtax.
- Privacy: We don't save your financial numbers, we don't ask for your email to see your results, and we don't sell your data.
- Speed: Built on modern web technologies, our calculator does the heavy lifting instantly right in your browser.
Get in Touch
Whether you have a feature request, spotted a bug, or just want to say hello, we read every single message.
Email us at: contact@n01labs.com