LA IT-540B Information

If you are a nonresident, or part-year resident, with income from Louisiana sources, who is required to file a federal individual income tax return, you must file a Louisiana return reporting income earned. Military - If you are military personnel whose domicile is not Louisiana, you must report any nonmilitary Louisiana sourced income on Form IT-540B. The federal Military Spouses Residency Relief Act has extended certain residency protections to spouses of military members. A final return for a decedent must be filed if you are the surviving spouse, executor, administrator, or legal representative, and the decedent met the filing requirements at the date of death.

Link to official form info:

Link to official form info for IT-540B

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To access the official link to form LA IT-540B and get reminded when it's due, sign up for a free Tax Reminder account:

  • Upcoming Due Dates in the Next Year:*
  • Tuesday Apr 15, 2025
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    * Due dates are based on the filing requirements for this form and may vary depending on your tax year.

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