So my employer sent me a W2 with Box 13 (retirement plan) checked. Thing is, when I tried to sign up, they told me they were transitioning to the new companies 401K after we got bought out, and I can sign up for that in 2016. Looking at the IRS guidelines, that box should only be checked if I was eligible for a 401K AND actually contributed to it (or had a defined pension plan).
Since this box is checked, if I check the corresponding box on my return, I cannot use an IRA contribution to reduce my taxable income due to my income. Should I just leave it unchecked and file anyway, or contact them to send an updated W2 to the IRS? Basically, how likely is the discrepancy between what they sent me for box 13 and what I actually do with box 13 to result in an audit is basically what I'm wondering, and if it's better to err on the side of caution and have my employer correct the mistake?