Turbo tax is telling me my max contribution to my traditional 401k is $5500. IRS says max is $18,500. I contributed $7,200 and some change in an employer sponsored traditional 401k. Why is Turbotax sa

[dmertz · Accepted solution]

Enter items in box 12 of your W-2 only in box 12 of TurboTax's W-2 form, nowhere else in TurboTax.  A 401(k) is not an IRA.