Tax Year Prior to 2020: Health insurance premiums self employed ... what are the rules for using this expense deduction? Bob

[KarenL2]

The amount you can deduct is limited to your net profit in your business.  If your business has a loss, you will not be able to deduct the insurance premiums on the Form 1040. However, you can claim them as an itemized expense on Schedule A, if you have enough other medical expenses and file a Schedule A.

Also, here is a link to a good article on Self-Employed Health Insurance  that explains all the rules. 

Here is where to enter your medical insurance premiums if you are self-employed:

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