An official Louisiana.gov website.
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The Declaration of Estimated Corporation Income - 4th Quarter is due on the 15th day of the 12th month of taxable year. The taxable year begins January 1st and ends December 31st for calendar filers, fiscal year filers will need to adjust due date accordingly.
Download tax returns and other forms.
File electronically with an approved vendor.
June 12, 2025
Louisiana men arrested for gambling-related tax fraud schemeBATON ROUGE – Two Louisiana men face felony charges for their alleged involvement in a scheme to steal of hundreds of thousands of dollars in state income tax refunds.
May 14, 2025
Tax preparer arrested for gambling-related tax fraud schemeA Louisiana tax preparer faces felony charges over an alleged scheme to steal tens of thousands of dollars in fraudulent income tax refunds.
May 12, 2025
Louisiana state income tax deadline is May 15The deadline for 2024 Louisiana state income tax is Thursday, May 15.
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