When must I file Form L-1?


Each Form L-1 covers one quarterly period and must be filed by the last day of the month following the close of the calendar quarter except for semi-monthly payers. Semi-monthly payers must file Form L-1 by the fifteen of the month following the close of the quarter. A quarterly return must be filed even if no taxes are withheld during the quarter. If wages paid to employees were not sufficient to require withholding, an L-1 return should be submitted with zero dollar amounts. The due dates for taxpayers with a Quarterly or Monthly Payment Frequency are:
  • 1st Quarter Due: April 30th
  • 2nd Quarter Due: July 31st
  • 3rd Quarter Due: October 31st
  • 4th Quarter Due: January 31st
The due dates for taxpayers with a Semi- Monthly Payment Frequency are:
  • 1st Quarter Due: April 15th
  • 2nd Quarter Due: July 15th
  • 3rd Quarter Due: October 15th

Filing Dates


News & Announcements

September 02, 2025

Hunters get a tax break during the 2nd Amendment Weekend Sales Tax Holiday, Sept. 5-7

BATON ROUGE – Consumer purchases of firearms, ammunition and a wide range of hunting supplies are exempt from state and local sales tax during the Louisiana Second Amendment Weekend Sales Tax Holiday, Friday, Sept. 5 through Sunday, Sept. 7.

August 26, 2025

LDR partners with OMV in Lafayette to resolve driver’s license suspensions

BATON ROUGE – The Louisiana Department of Revenue (LDR) is partnering with the state Office of Motor Vehicles (OMV) to help Lafayette-area taxpayers resolve driver’s license suspensions.

August 25, 2025

New Orleans-area suspects arrested; products seized in crackdown on illegal vapes

BATON ROUGE – A state task force arrested four people and confiscated tens of thousands of banned substances in the second phase of a statewide crackdown on illegal and unauthorized vape products.


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