How do I make an extension payment for my Louisiana Corporation Income and Franchise taxes return?


An electronic payment can be made through tax preparation software that supports the option, through LaTap; or by credit card at Officialpayments.com. If you need to mail in a check or money order, you must use the Extension Payment Voucher, Form CIFT-620Ext-V. This voucher can be printed through the Online Payment Voucher application and mailed to Post Office Box 751, Baton Rouge, LA 70821-0751. (Question & answer revised January 10, 2023)

Filing Dates


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May 12, 2025

Louisiana state income tax deadline is May 15

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January 29, 2025

Louisiana state income tax filing begins Wednesday, Jan. 29

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