Louisiana Tax Residency (6-month rule)

Key parameters
Threshold	6 months (~183 days)
Period / Window	Tax year (1 Jan – 31 Dec)
Counting	Any part of a day
Alternative	Domicile, permanent place of abode
Additional requirements	Either route qualifies alone

This applies to anyone with a home or a long stay in Louisiana, whichever state they treat as their own. You are a Louisiana resident if any of these applies:

• Domicile — Louisiana is your true, fixed and permanent home.
• A permanent place of abode in the state — you maintain one, whatever your day count.
• More than 6 months in the state — aggregated across the tax year, whatever your housing arrangements.

The structure is what matters here. Most states pair a home and a day count as two conditions that must both hold. Louisiana separates them: either one qualifies on its own, so a second home in the state exposes you with no day count at all.

Someone who resides in the state for more than six months is treated as a resident for the entire year, not just the portion after the threshold was passed. A temporary absence does not change domicile by itself.

• A home alone is enough. Because the routes are alternatives, maintaining a permanent place of abode in Louisiana can make you a resident with almost no time in the state.
• The whole year is caught. Passing six months makes you a resident for the entire tax year rather than from the crossing point onward.
• Months, not days. Louisiana frames the threshold in months, so a day-based reading is an approximation rather than the statutory figure.
• A temporary absence changes nothing. Leaving Louisiana for a while does not shift domicile by itself.
• Two states can tax the same year as a resident year. Meeting the Louisiana test leaves your domicile elsewhere intact, with credits closing only part of the overlap.

A resident is taxed on income from all sources while a nonresident pays only on Louisiana-source income, so an error usually surfaces as out-of-state earnings never reported by someone who assumed a second home was safe without a day count. The Department charges interest from the original due date and adds penalties for filing late and for underpaying, with greater exposure where an understatement is treated as deliberate. Professional tax advice is strongly recommended in situations like this.

A second home and very few days

You are domiciled in Texas and keep a permanently maintained house in New Orleans, visiting perhaps 40 days a year. Because a permanent place of abode qualifies on its own, that alone can make you a Louisiana resident.

A long stay with no home

You spend about seven months in Louisiana on a contract, living in short-term accommodation booked as you go. The six-month route qualifies on its own, so residency follows without any permanent abode.

A short stay and nothing kept

You work in Louisiana for four months, stay in a hotel and keep nothing in the state afterwards. Neither route is met, so residency does not attach.

• Louisiana Revised Statutes — Section 47:31, individuals subject to tax
• Louisiana Department of Revenue — Nonresident individual income tax billing