The problem isn't TurboTax, the problem is the W-2.
New Jersey does not permit the deduction of a number of pre-tax items that are allowed on the federal return. Therefore, these items are added back to the NJ return.
However, if there is an entry in box 10, there is no need to have the same entry on box 14 (I don't know what your employer was thinking).
Box 14 is usually used for items that the employer wants the employee to be aware of, but for the most part have no effect on the return, but a few do.
When you entered the W-2 on box 14, what category did you choose for the box 14 entry, "NY Sec 125"? Try changing it to Other and see if that changes the NJ return so that there is only one $5,000 addback. And you should let your employer know that TurboTax (and likely other tax software products) keys off of some box 14 entries, so they don't need to duplicate the box 10 entry in box 14.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
