Business calculators
For sole proprietors, freelancers and small businesses in Canada: what you need to sell to cover your costs, and what you keep after tax. Everything runs in your browser; your numbers never leave your device.
Run the numbers
Break-Even Calculator
The sales you need to cover your costs and reach a target profit.
Quarterly Tax Instalments
Whether you owe CRA instalments, how much and by when, from your income so far.
Quebec: January 2027Invoice Generator
A Canadian invoice with the right GST/HST, QST or PST, in English or French, as a PDF.
Sole Proprietor vs Corporation
What you keep either way, salary or dividends, and the tax you can defer.
Quebec: January 2027
Tax for the self-employed
A business you run yourself is taxed as your own income, with both halves of CPP. Once your sales pass $30,000 in a calendar quarter or over four quarters together, you also have to register for and charge GST/HST. An RRSP contribution lowers the income tax on your profit.