You should review both your W2 forms and then review your Maryland state return entries in TurboTax.
Your resident status likely changed when you started your New York return. You are probably a part-year resident of Maryland now and you may have been a full-year resident before you added the New York income.
Once you complete the Maryland return, complete your New York return. You are also probably a part-year resident of New York as well.
Each state taxes you on the percentage your income earned in there state is of your total gross income, not just the exact amount of dollars earned in that state.
Filing Multiple State Tax Returns in TurboTax
