Self employed

I included the net profits in last year's return but not additional self-employment taxes.  I wasn't aware I needed to do this.  The net profits plus my social security income did not exceed my standard deductions, so I received a return instead of having to pay additional income tax.  

 

So to answer your question, yes, the additional income was above $400 (actually $3,000), but I did not pay self-employment taxes.  I am asking if I need to file a corrected return for last year?

 

Appreciate your response!  Thanks!