2025 Louisiana Income Tax Filing Deadlines for 2024 Returns

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Louisiana State Income Taxes for the 2024 tax year can be prepared and e-filed, along with your IRS or Federal Income Tax Return. You can also find out how to prepare and e-file just an Louisiana state return. Check the deadlines for IRS or Federal Tax Returns.

Tax Deadlines and the Louisiana Tax Day

The majority of deadlines listed here are for the 2024 tax year and are due in 2025; some apply to upcoming years and some are IRS or federal deadlines.

Deadline

Type

Description

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LA + IRS Tax Return

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Start Federal and Louisiana Tax Returns

May 15, 2025

Income Tax Return

Prepare and e-File an IRS (Due Date April 15) and Louisiana State Income Tax Return (Due Date May 15) until October 15, 2025. - eFileIT

May 15, 2025

Income Tax Extension

See Louisiana Income Tax Extension Details.

October 15, 2025

Income Tax Return after the May 15, 2025 Louisiana Tax Extension

Last day to e-File a 2024 Louisiana State Income Tax Return for Tax Extension Filers and late eFilers. You can only e-File (to file by paper see below) Louisiana Income Tax Return together with an IRS Tax Return - eFileIT

November 15, 2025 via mail-in Forms.
Forms incl. Mailing Address

Income Tax Return after the May 15 Louisiana Tax Extension

Deadline for taxpayers who got a LA Tax Extension to file their Louisiana Income Tax Return by mail-in Forms - the Forms incl. mailing addresses are listed here - is November 15. (Optionally, the eFileIT deadline is Oct. 15). Instructions on how to only - without the IRS return - prepare and file a Louisiana State Income Tax Return on eFile.com.

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Tax Amendment for all Tax Years
File as soon as possible.

Detailed Instructions on how to prepare and mail in a Louisiana State Income Tax Return Amendment.

IRS Due Dates

IRS Tax Return, Extension, Amendment Deadlines

Detailed current and future Federal or IRS Income Tax Deadlines.

All State Deadlines

Other State Tax Return, Extension, Amendment Deadlines

Select respective State Tax Return Deadlines.

May 15, 2026

2022 Louisiana Income Tax Return Refund

The last day to file - you will not face late filing penalties - and claim your 2022 Louisiana Income Tax Return Refund. This deadline does not apply if you owe 2022 Income Taxes. See details on unclaimed refunds.

May 15, 2027

2023 Louisiana Income Tax Return Refund

The last day to file - you will not face late filing penalties - and claim your 2023 Louisiana Income Tax Return Refund. This deadline does not apply if you owe 2023 Income Taxes. See details on unclaimed refunds.

May 15, 2028

2024 Louisiana Income Tax Return Refund

The last day to file - you will not face late filing penalties - and claim your 2024 Louisiana Income Tax Return Refund. This deadline does not apply if you owe 2024 Income Taxes. See details on unclaimed refunds.

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