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.
Follow these step by step instructions on how to enter your previous tax year AGI on efile.com. If for any reason you don't wish to enter your AGI on this years tax return as your identity, please follow the instructions of Case 1 above to obtain your IRS eFile PIN. On the screen that asks you for a separate signature, enter any five digit PIN (except 00000 or 12345) to electronically sign your tax return.