I have already submitted my return and just received notice from the IRS that I may be subject to self-employment tax. I receive a commission payment monthly, but it is from a one time referral to a company. I did receive a 1099-MISC (non-employee compensation) from that company. I am not sure as to how I should respond back to the IRS. I looked at schedule SE and it seems as though it wouldn't apply to my current situation.
