US State Taxes When Living Abroad

Moving abroad generally doesn't automatically end your state tax obligations the way people often assume — several US states have residency rules that can keep taxing you even after you've left the country entirely, particularly if you maintain any meaningful tie to the state (a driver's license, a registered vehicle, property, or simply not having formally established residency elsewhere).

States vary enormously on this. Some (Texas and Florida are the commonly cited examples) have no state income tax at all, making this a non-issue by design. Others carry a real reputation for aggressive scrutiny of residency claims: California specifically applies a 546-day (roughly 18-month) safe harbor rule requiring genuinely minimal return visits (no more than 45 days per year) during that window to support a clean break, and Virginia and South Carolina are both confirmed as particularly persistent about continuing to assert taxing rights over departed residents who maintain any meaningful in-state tie. Confirm your specific state's current rules directly — this varies enough state to state that general guidance can't responsibly cover all fifty.

The practical steps to actually terminate state residency generally include things like changing your driver's license and voter registration to a new state (or formally establishing foreign residency where the state allows it), closing or updating in-state bank accounts, and in some cases filing a specific part-year or non-resident return for your final year — the exact list varies by state.

This is a genuinely under-discussed part of the US nomad tax conversation relative to how much attention federal FEIE and citizenship-based taxation get — worth addressing directly with a tax professional familiar with your specific state's exit rules before assuming leaving the country was enough on its own.