Get your taxes done using TurboTax

It depends.

Are your wages from the same employer?

If so, you mentioned that you have no wages listed in Box 16 as being from MA sources?  Is this correct?  Do you have any MA withholdings listed in Box 17?

If all of the information is the same on the federal totals, Employer Identification Number, etc., you can just add the lines for the state portion.   

To edit your W-2 information, go to the Federal section of the program. 

1. Select Income & Expenses
2. Select Job (W-2)
3. Click Edit/Add to the right of the Job (W-2) 
4. Select Edit  for the applicable W-2
5. If you have a duplicate W-2 for the MA form, delete that input so all of the wages are only reported on one section for the same employer

Just make sure the total of all the state lines equal the total of the federal wages to ensure you are reporting all of the W-2 income.  You will see the input on your W-2 section under boxes 15-17.  You can add the rows for each additional state as needed here.