You are considered a resident of Hawaii for tax purposed if:
- You had your legal domicile in Hawaii for the whole tax year, or
- You lived in Hawaii for at least 200 days (no matter where you had your domicile in this period)
There are some exceptions, however: military employees and students are not considered residents if their domicile is outside Hawaii and if they resided in Hawaii for more than 200 days solely for educational or work purposes.