If you moved to a new state during 2018, you'll normally file a part-year return for each state you lived in during 2018, assuming the state(s) collect income tax.
Below are some common scenarios and how they would be handled. Use these as a guide for your particular situation.
This is the most common scenario. Let's say you've lived and worked in New York for years.
In September, you moved from New York to Pennsylvania. After moving, you started working for a new employer in Pennsylvania.
This year only, you'll file part-year returns for both New York and Pennsylvania. Next year, you'll only need to file a Pennsylvania return.
You're a New York resident who had been working in New York. You quit in late March. In April you started working for a different employer in New Jersey.
In September, you moved to New Jersey to save on living expenses and shorten your commute. You would file 3 returns:
You should prepare your returns in this order:
Next year, you'll just file a resident New Jersey return.
Let's say you and your jointly-filing spouse were New York residents until July. Then you both moved to Vermont.
Your spouse now works in Vermont, but you still commute to your New York job. You would file 3 returns:
You'll want to prepare your returns in this order:
Next year, assuming nothing changes, you and your spouse would jointly file a Vermont resident return along with your nonresident New York return.