See the steps below for how to enter your self-employed income that was not reported on a 1099 MISC. Once your income is entered, you will have a summary screen for your business and you can scroll down it to enter business expenses.
Type Schedule C in the Search box and then select
the Jump to link. This will take you to
where you can enter any cash, personal checks, credit card payments, or
cryptocurrency (Form 1099-K) related to your self-employment. You may
first be asked some general questions about your business. After you answer
them, you’ll be taken to the Let's enter the
income for (your line of work) screen where you can enter this income as
Other self-employed Income.
See the sample screenshot attached.