Some examples of adjustments to income include: You’ll sometimes hear these referred to as “above the line” deductions. The deductions you take to calculate AGI are referred to as “adjustments to income.” These are specific deductions that the IRS allows you to use to reduce your total income to arrive at your AGI. Throughout your tax return form, there are many opportunities to take deductions, some of which reduce your total income to determine AGI, and some that are taken in later parts of the return to reduce your taxable income.