Self-employed adjustments to income and the qualified business income deduction will reduce: O Income tax liability. O Payroll tax liability, O SE tax. o Schedule C net profit . OMark for follow up Question 12 of 35. Which of the following is NOT an adjustment to income available to self-employed taxpayers? O Deduction for one-half of self-employment tax. Deduction for SEP. SIMPLE, and qualified plans. Qualified Business Income Deduction. Self-employed health insurance deduction. Mark for follow up Summary Save / Return Later Next >> Type here to search