Is there a way to prove that I was not self employed?

[jaclark474-gmail]

IRS said I didn't report self employment wages. I wasn't self employed. Now I'm beu

[xmasbaby0]

If you were an independent contractor, being paid in cash, etc. or if you received a 1099NEC, as far as the IRS is concerned you were self-employed and need to pay self-employment tax for Social Security and Medicare, as well as ordinary income tax.  

You have not said what kind of work you did-----provide some details.   Why is the IRS saying you were self-employed?   

https://ttlc.intuit.com/questions/2584365-am-i-an-employee-or-an-independent-contractor