What are the penalties for filing late tax returns?


The delinquent penalty is 5 percent of the tax liability for each 30 days or fraction thereof, not to exceed 25 percent. Interest accrues on any unpaid tax from the due date to the date of payment. Refer to Form R-1111, Tax Interest Rate Schedule, for the applicable monthly interest rates. Form R-1111 is available on LDR’s website at www.revenue.louisiana.gov.

Electronic payments and filings that are submitted late will be assessed a delinquent penalty per LA R.S. 47:1519 and 1520 and will be subject to penalties and interest as set forth in LA R.S. 47:1601 and 1602.

In addition to the delinquent penalties described above, a taxpayer may also incur accuracy-related penalties under LA R.S. 47:1604.1.


Filing Dates


News & Announcements

May 14, 2025

Tax preparer arrested for gambling-related tax fraud scheme

A 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 15

The deadline for 2024 Louisiana state income tax is Thursday, May 15.

January 29, 2025

Louisiana state income tax filing begins Wednesday, Jan. 29

Louisiana Department of Revenue (LDR) will begin accepting 2024 state individual income tax returns on Wednesday, Jan. 29, 2025.


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