Go to Business tab,
then click continue
I'll choose what I work on
the screen will say, "Let's gather your business info"
click "Update" on the Sch C business you have
then "Edit"
scroll down to "Business Expenses" and click on sub-heading, "Other Common Expenses"
The screen will be titled, "Let's write off some business expenses" and go down to "Insurance Payments" and click update and then enter the amount paid.
Note: You must have a profit on the business for it to be deductible. It will not be deducted on the Sch C but will go to the Form 1040 and be deducted on line 29.