Learn to read your tax return. Look at it and understand why the figures are entered where they are and see if certain forms are missing. Look to see if you have a Schedule SE. Look at your Schedule C to see if you made a mistake. Did you even include the income on Schedule C?
https://ttlc.intuit.com/community/business-taxes/discussion/where-would-i-find-my-schedule-c/00/1647....
