The term MAGI COUNT is a THREE-letter acronym that stands for Modified Adjusted Gross Income. It is a calculation used by the Internal Revenue Service (IRS) to determine an individual's eligibility for certain tax credits and deductions. The MAGI COUNT is calculated by adding certain types of income to an individual's Adjusted Gross Income (AGI). This calculation is used to determine eligibility for the Earned Income Tax Credit, the Child Tax Credit, and other deductions and credits.