Self-Employment Taxes are calculated by the TurboTax software using Schedule SE. One-half of the SE taxes reported on Schedule SE Line 13 flow to Schedule 1 Line 15. The amount from Schedule 1 Line 26 flows to Form 1040 Line 10 as an Adjustment to Income.
The one-half of SE taxes is not an itemized deduction on Schedule A nor an expense reported on Schedule C. It is an Adjustment to Income which reduces the Adjusted Gross Income on your tax return, Form 1040.
