Residency is determined by several things ---such as where
you receive mail, where you work, where you vote, etc. What does NOT determine residency is where you got your driver's license.
Also included in the decision is where do you go at night to
eat, sleep, etc. Based on what you
stated, you would may be required to file (for 2018) as a part-year resident
of BOTH states.
On what basis do you believe that you are a 'legal' resident
of another state? If you
claim a state as your residence because you go to school there, that is not
necessarily a 'residence' --wait until you graduate and get a full time job to
determine your ultimate residence.
By the way, one common mistake many people make (when they
move) is that their driver’s license determines where they reside. To the contrary, many/most states consider it
a VIOLATION of the motor vehicle laws of the state if you do not surrender your
previous driver’s license and obtain a license in that state within 30-60 days.
