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.
If you are filing using the Married Filing Jointly filing status, the $57,000 AGI limitation applies to the AGI for both of you combined. This AGI will appear on your return. To e-file your federal tax return, you must verify your identity with your AGI or your self-select PIN from your 2012 tax return. If you do not have this information from your 2012 tax return, you may request an Electronic Filing PIN, a five-digit number from the IRS.