Hello Dr Rose,
Income from the 1099-K can be reported in 2 places.
1. Report it as other income on schedule 1 of your return if it is a hobby and no expenses are allowed to be taken
2. Report it on schedule C (self employed income) if it is a business and then you can take all the expenses associated with making that income.
Here are a couple of links with more information
I paint portraits of pets and sell them. Now I’m being told by your experts that I’m actually self-employed. I consider it a hobby. Aren’t there more applicable requirements/criteria for being considered self-employed??
For it to be considered a business the IRS looks for the following
The IRS expects that if you start a business, you intend to make money at it. If you don't, your business might be a hobby. To determine if your business is a hobby, the IRS looks at numerous factors, including the following:
These are just some considerations that may, or may not, apply in determining if you have a business or a hobby in the eyes of the IRS.
If it is a hobby no expenses are allowed to be taken againist the income