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.
Note: If you need to file a prior year return, see Previous Year's TaxAct Products for a list of available Online and Desktop programs. If you used TaxAct in a prior year and need to access your account, see Accessing Prior Year Returns. According to the IRS Topic 156 Copy of Your Tax Return - How to Get One: