Because the marketplace application requires an estimated income for the year you want insurance coverage, it can be quite stressful predicting and figuring out your adjusted gross income. Because the marketplace application requires an estimated income for the year you want insurance coverage, it can be quite stressful predicting and figuring out your adjusted gross income. Unbelievably enough, many refrain from purchasing health insurance because they believe their gross income will not qualify for saving when in reality, their income might not be modified to qualify for savings. In this article, we are going to inform you what Modified Adjusted Gross Income (MAGI) is and how this can affect to qualify for savings on your health insurance.