If you are self-employed, you are required to keep accurate business records of your income and expenses and report all your income and expenses, even if you don’t receive tax reporting paperwork.
If all of the work is similar and can be basically considered one business, then you can report all the income under one schedule C, as long as this is a single-member LLC treated as a disregarded entity. For example, driving for Uber, Lyft, and DoorDash could all be combined under one business, since the income and expenses and functions of the business are similar.
However, if the nature of the businesses are sufficiently different, then you would need a separate schedule C for each business that only listed the income and expenses that were specific to that business. For example, if one of your jobs was as a providing Landscaping and lawn mowing services, and the other job was as a web designer.
