First of all, be sure to add all income and expenses for this line of work before you add another line of work.
For example, if you drive for both Uber and Lyft, you'd want to enter all income and expenses related to your driving work now.
Once that's done, here's how to add another line of work:
- Continue until you get to the screen that lists all your income (it says Your income and expenses at the top).
- Look for Self-employment income and expenses and select Edit/Add.
- On the next screen, select Add another line of work.
- Follow the instructions to enter the line of work.
You might want to jot these steps down or snap a photo of them with your phone. It will come in handy for reference later.