Does the question about contributing to a traditional IRA mean what you contributed on your paycheck (and therefore on your W2) or only additional contributions?

[AnnetteB6]

It would be referring to additional contributions that you made on your own to a Traditional IRA.

Typically, contributions made through your paycheck and reported on your W-2 would be to some sort of retirement plan (like a 401k) instead of a Traditional IRA.  

[dmertz]

Enter amount shown in box 12 of your W-2 only in box 12 of TurboTax's W-2 form, nowhere else in TurboTax.