To add another business or Schedule C for yourself
Go to Business tab-Continue
Business Income and Expenses
Profit or Loss from Business, click Start or Update.
You should see the Business Summary page that lists the businesses, right below the list you can Add Another Business.
Be sure to add it under the right spouse if you are married.
And I wouldn't enter the 1099NEC. Actually I would just enter your total income as Other self employment income or as Cash or General income. You don't need to get a 1099NEC or 1099Misc or 1099K. Even if you did you can enter all your income as Cash. Only the total goes to schedule C.
