To add a bit to @ThomasM125 's answer: RI can tax only the income you earned from work you physically carried out within RI. Your home state of MA can tax all your income. including the portion you earned in RI.
MA will credit you for the taxes paid to RI on the portion of your income taxed by both states. The credit in effect prevents double taxation, which is prohibited.
With TurboTax, complete the non-resident RI tax return before the MA tax return, so that the program can correctly calculate and apply the credit.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
