Self-employed health insurance premiums are listed on line 17 of Schedule 1, to the extent it is deductible. From there is flows to line 10 of Form 1040 Adjustments to Income. The amount deductible can be limited by your net self-employment income and also entries for your marketplace insurance premiums listed on Form 1095-A. It is not deductible on Schedule C as a business expense as it is more personal in nature, so you won't see it listed on your business income summary.
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