I found the following in one of the help articles:
"If you have a 401(k) or TSP through your employer, your contribution is reported in Box 12 of your W-2 with the letter code D.
Because your contribution is included in your W-2, do not re-enter it in the retirement section."
Box 13 of my W-2 does have an 'X' under "Retirement Plan", but there's nothing with code D in box 12. I just have DD and that's it. So, can I enter my 401k contribution in the "Traditional and Roth IRA Contributions" section of "Deductions and Credits"?
