<p>FYI for the future, it would have been better to start a new thread rather than revive a year old one.</p>
<p>You contributed pre-tax to a 401k through your employer or is your 401k a Roth? I haven’t received a W-2 in a couple years but as I recall my pre-tax 401k contribution always showed in Box 14 with the D code and an amount. If you did contribute pre-tax and the pre-tax contribution doesn’t show on your W-2 I would contact your employer about a corrected W-2. If it’s a Roth 401k then you didn’t get any tax advantage so the amount doesn’t have to be added back in to your AGI. Though with a Roth 401k it looks like you should have an AA code in box 14.</p>