Thanks for the response! Any idea why TurboTax can't consider the $18,000 in elective deferrals on the W-2? I did add it to TurboTax under box 12a (code D for 401(k)).
Also just curious, why does box 3 of my W-2 affect employer contribution maximum? I don't think it matters because my MAGI for W-2 income is over $118,500 - but I can't find anything relating social security wages to employer contribution maximum. As far as I can tell it's always just 20% of SE income, which for me this year was $50,000 in 1099-MISC income (before SE taxes). For what it's worth, my W-2 employer did not contribute anything to the 401(k).
