There's 'gross income' which is all proceeds earned minus taxes and other standard deductions. There's 'adjusted gross income' which is gross minus deductions such as mortgage interest, child dependence allowances, contributions to retirement funds, etc. I'd imagine adjusted gross would also include other allowable business deductions that would be filed on Schedule C? What exactly is net income for calculating child support? Is it the same as adjusted gross minus paid taxes? Would net income include deductions for Retirement accounts or health insurance premiums? Would it include all business deductions claimed, or only those absolutely necessary to run the biz, I am under the impression that net income for child support is not the same as adjusted gross minus taxes. Is this true?