As a freelancer, your income would be treated as self-employment income.
You shall report your self-employment income on separate lines for each source by entering your gross and net income in lines 13500 to 14300 of your income tax and benefit return. These amounts are calculated using the T2125 Statement of Business Activities form which is a part of your personal income tax return. Your gross income is what you have earned before any expenses are deducted. Your net income is what is left over after deducting expenses.
You may refer to the pages "Freelance Taxes in Canada: 9 Things You Need to Know"; "Tax Deductions for the Self-Employed"; and "Guidelines for Reporting Self-Employment Income"; for your understanding.
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