You can enter this income like one would from other forms of Self Employment Income. There are two choices depending upon whether you received a 1099 form (first set of instructions) or not (second set of instructions). See screenshot attached.
You received a 1099-MISC for your self-employed income.
Type “1099-misc” in the Search box and then select the “Jump to” link. This will take you directly to the section where you can enter your 1099-MISC.
If your self-employment income was only from cash or checks or credit card payments or 1099 K (or not on a 1099 MISC).
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 or credit card payments (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 get income for (your line of work) screen where you can enter this income on the line labeled as Additional Income and other income.
