You can use Form T2125, Statement of Business or Professional Activities, to report your business and professional income and expenses. This form can help you calculate your gross income and your net income (loss), which are required when you complete your Federal Income Tax and Benefit Return.

Basically, anyone who needs to report self-employment income and expenses will use the T2125 form. The T2125 form is part of the T1 income tax package that all individuals use to file their personal income tax returns in Canada.​