in general, amounts on a tax return that are deductible from gross income before arriving at Adjusted Gross Income (AGI) , such as IRA contributions, half of the self-employment tax, self-employed health insurance deduction, Keogh retirement plan and self-employed SEP deduction, penalty on early withdrawal of savings, and alimony paid. The term is derived from a solid bold line on Form 1040 and 1040A above the line for adjusted gross income. Ataxpayer can take deductions above the line and still claim the standard deduction.