In your situation, as you do not have a permanent home in NY ( only going to school), you will file as a nonresident of New York. You are very likely considered as a resident of MD. You do not pay taxes to both states. To avoid double taxation, in the program, you would first enter information as a nonresident of NY, then the resident state of MD. Then you will bring the nonresident NY taxes as a credit onto your MD resident tax return. Follow the on-screen instructions while entering info. The program will take you to the right place and calculate your state taxes correctly.
