Calculate your Adjusted Gross Income by subtracting above-the-line deductions from total income.
Adjusted Gross Income (AGI) is your total gross income minus specific deductions (called "above-the-line" deductions). AGI is on line 11 of your Form 1040 and determines eligibility for many tax credits and deductions.
Your AGI affects: eligibility for Roth IRA contributions, child tax credit phase-outs, student loan interest deduction, medical expense deductions (must exceed 7.5% of AGI), and many state tax calculations.