Moving abroad does not automatically end your state income tax obligations, and a handful of states are aggressive about continuing to tax former residents who they believe maintain domicile there. California, New York, New Jersey, and Virginia are the states most known for asserting continuing tax jurisdiction over people who have moved overseas, and they look at factors like whether you have a place of abode in the state, where your family remains, and where your professional and social ties are. To cleanly break state residency before moving abroad, you should establish a new domicile in a state with no income tax if possible, update your driver's license, voter registration, and banking to your new state, and avoid spending too many days in your former state once you leave. Simply spending fewer than 183 days in a state is not enough if your domicile is still there: domicile is a legal concept based on intent, not just physical presence. If you live in a state that does not allow a clean break from residency, a tax professional can review whether you meet the criteria the state uses to determine ongoing residency and advise on steps to take before you leave.