The health insurance premiums that are deducted from your pay can be added to your medical expenses for the NJ tax return. While they are usually deducted pre-tax for federal tax, they are after-tax for NJ. On the screen where you enter medical expenses in the New Jersey interview, there is a separate box for "medical insurance premiums included in your New Jersey wages but not in your federal wages on your W-2, and not deducted on Federal Schedule A." The premiums that you enter in that box will be added to the other medical expenses for your NJ tax return. The amount of your deduction on the NJ tax return is your total medical expenses minus 2% of your New Jersey gross income. You enter the full amount of the expenses. TurboTax will do the subtraction.
