Utah taxes residents on all income. You can be a resident by domicile, or by keeping a home in the state and spending enough days there.
You are a Utah resident if you are domiciled in Utah, or if you maintain a permanent place of abode in the state and spend 183 or more qualifying days there. Utah’s day count is distinctive: only days where Utah is where you spent the most time count toward the 183.
Utah treats a non-domiciliary as a resident when two things are true in the same year: you maintain a permanent place of abode in the state, and you spend 183 or more qualifying days there. Meet both and Utah taxes you as a resident even if your true home is elsewhere. Utah’s day count is distinctive: only days where Utah is where you spent the most time count toward the 183.
A qualifying day in Utah is a day you spend more time there than in any other single state, so an ordinary travel day may not count. Days add up across every trip during the year, not just one stay.
In an audit the burden is on you to prove the days you were outside the state. A contemporaneous day-by-day log, backed by phone, card, and travel records, is the strongest defense.
DayStayed counts your days in Utah automatically and warns you before you cross the line.
Maintaining a permanent place of abode in Utah and spending 183 or more qualifying days in the state during the year, even if you are domiciled elsewhere.
A qualifying day in Utah is a day you spend more time there than in any other single state, so an ordinary travel day may not count.
Residents are taxed on all income for the year.
Track your days by state automatically and keep an export ready before anyone asks for it.
