Louisiana Personal Tax Extension 2026: 2025 Tax-Year Filing Guide
Individual Income Tax · Form IT-540
Louisiana generally grants an automatic extension for individual returns. Louisiana’s 2025 individual return is due May 15, 2026, with an extended deadline of November 16, 2026. For federal details, see our federal tax extension resources.
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✓ Secure e-filing✓ 24/7 filingLouisiana generally grants an automatic extension for individual returns. Louisiana’s 2025 individual return is due May 15, 2026, with an extended deadline of November 16, 2026.
Last updated: September 12, 2026Louisiana Personal Tax Extension: Filing Details
Louisiana generally grants an automatic extension for individual returns. Louisiana’s 2025 individual return is due May 15, 2026, with an extended deadline of November 16, 2026.
Quick Reference: Deadlines and Forms
Use this summary to confirm Louisiana filing deadlines, forms, and payment requirements.
| Item | Louisiana personal return | Deadline or method |
|---|---|---|
| Original deadline | Form IT-540 | May 15, 2026 |
| Extended deadline | Automatic | November 16, 2026 |
| Return form | Form IT-540 | Use the current form |
| Payment | Form R-2868V | Due May 15, 2026 |
Frequently Asked Questions
Answers about Louisiana personal tax extensions.
The Louisiana extended filing deadline for the 2025 tax year is November 16, 2026.
Review the Louisiana instructions to determine whether a federal extension or state request is required.
An extension gives more time to file, not more time to pay; pay the required amount by the original deadline.
Check the Louisiana revenue or taxation department for current forms and instructions.