You'll be filing two state tax returns: a non-resident MA return, and a resident return for your home state of RI.
ALL your income is taxable by RI, including what you earned in MA.
Only the income you earned by working in MA is taxable by MA.
RI will give you a credit for the taxes you pay to MA, so in effect you won't be double-taxed.
In TurboTax, be sure to complete the non-resident MA return before you do your home state RI return, so that the program can correctly calculate and apply the credit.
Enter your W-2 as is. The program will allow you to allocate the proper amount of income to MA.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
