Domicile Test for Residents
New Jersey primarily determines tax residency through the Domicile Test. You're considered a resident if New Jersey is your domicile - your true, fixed, permanent home. Even if you spend time outside the state, maintaining significant ties to New Jersey may classify you as a resident. Non-residents, however, may still have tax obligations. If you earn income from New Jersey sources, you'll need to file a New Jersey non-resident income tax return, typically using the NJ-1040NR form, also known as the state of New Jersey non-resident tax form.