When working for a food delivery company, you are considered self-employed because you are free to carry out the duties as you please since you are contracted independently, not hired as an employee.
When working for a food delivery service like UberEats, Skip the Dishes, or DoorDash, you’re considered self-employed. This means that in addition to filing your usual T-slips (if you receive any income elsewhere as an employee), you must report your self-employment income on Form T2125. You’ll claim your gross income from the business (including tips), deduct any expenses to calculate the net business income, and report the GST/HST paid.