You do not contribute to an IRA from your paycheck. You might have an employer sponsored retirement plan such as a 401(k) or 401(k) Roth, but those are not IRA's. They are only reported in box 12 on you W-2 and nowhere else.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
