Our calculator uses the official Canada Revenue Agency (CRA) tax rates and formulas for the 2025 tax year. We test against thousands of scenarios to ensure accuracy within $1 of official calculations. All federal brackets, provincial rates, CPP, EI, and tax credits are updated annually.

No. True North Shield is a local-first application. All calculations happen entirely in your browser using JavaScript. No data is ever sent to our servers. Your salary, RRSP contributions, and personal information stay on your device. We don't use tracking cookies or third-party analytics.

Yes, the calculator supports all 13 Canadian provinces and territories: Ontario (ON), Quebec (QC), British Columbia (BC), Alberta (AB), Manitoba (MB), Saskatchewan (SK), Nova Scotia (NS), New Brunswick (NB), Prince Edward Island (PE), Newfoundland and Labrador (NL), Northwest Territories (NT), Nunavut (NU), and Yukon (YT). Provincial tax brackets and surtaxes are automatically applied.

The Statement of Employment Expenses (Form T777) allows eligible employees to deduct home office expenses like utilities, rent, and internet. If you work from home and have a signed T2200 from your employer, use our built-in T777 tracker to log these expenses securely.