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.
When you efile your 2014 Tax Return, you will need to prove your Identity either by using a PIN from the IRS (Optionally: instead of the IRS Identity PIN, you can use your prior-year AGI as your Identity).ou can create this 5 number signature PIN on your own. Detailed instructions on how to enter your Identity PIN and/or AGI on efile.com. Case 1: You Filed a (Previous Year) 2013 Tax Return but Do Not Have Access to a Copy of the Return or the AGI Get your IRS identity PIN here and enter it during Checkout.