About Us
Why we built this
If you've ever tried to calculate how much tax you owe on your freelance or gig economy income in Canada, you've probably run into a frustrating—and expensive—problem.
Most "side hustle" calculators completely ignore your day job. Because Canada uses a progressive tax system, your freelance income stacks directly on top of your standard T4 salary and gets taxed at your highest marginal rate. If a calculator doesn't ask for your regular salary, it is going to severely underestimate your tax bill, leaving you with a massive, unexpected debt to the CRA in April.
Furthermore, many generic calculators use outdated brackets or fail to calculate the "employer plus employee" portion of the CPP that self-employed individuals are legally required to pay.
We believed Canadian freelancers deserved better. We wanted a tool that was mathematically precise, updated for the current 2026 tax year, beautifully designed, and entirely free to use—no strings attached.
The N01 Labs Difference
The Canadian Side Hustle 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, properly calculate self-employed CPP contributions, 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