TurboTax is missing a Mass. deduction for undergraduate student loan interest. (Sch Y Ln 12). I don't qualify for the fed deduction, but the state isn't income capped.

If you enter your 1098-E information on the federal return, you should get the deduction on the state return even if you are not eligible for the federal student loan interest deduction due to your gross income. To enter the 1098-E:

1. Open (continue) your return in TurboTax if you don't already have it open
2. Search for 1098-E and select the Jump to link at the top of the search results
3. Answer Yes to the question Did you pay any student loans?
   • If you land on the Here's your 1098-E info (or Here's what you paid in student loan interest) screen, you can either edit an existing payment or add a new one
4. Follow the onscreen instructions

As you said, if you do not benefit from the federal deduction, it will show up on MA Schedule Y Line 12.