Not to be confused with creatinine. Creatine (/ËkriËÉtiËn/ or /ËkriËÉtÉªn/) is a nitrogenous organic acid that occurs naturally in vertebrates. Its main role is to facilitate recycling of adenosine triphosphate (ATP), the energy currency of the cell, primarily in muscle and brain tissue.
Case 1: You Filed a Previous Year (2014) Tax Return But Do Not Have Access to a Copy of the Return or the AGI. First from the IRS website or call the IRS at 866-704-7388. Here is what you will see on the IRS PIN request site: Note: the image above is for informational purposes and is not interactive.
Modified Adjusted Gross Income (MAGI) Throughout your return youâll notice that the IRS also uses modified adjusted gross income, or MAGI. Your MAGI is your AGI increased or decreased by certain amounts that are unique to specific deductions. For example, you must calculate your MAGI if you want to deduct some of your student loan interest payments.