Your Takeaways:

  1. Louisiana automatically extends the filing deadline for individual income tax returns until November 15; no separate form is needed.
  2. Tax extensions do not extend the deadline to pay taxes; payments must still be made by the original due date to avoid penalties.
  3. Interest and penalties apply to late payments, even if granted an extension.

Tax season can be hectic, but Louisiana makes it easy to file an extension if needed. Follow these steps to get more time to file your state return and avoid penalties.

But remember, an extension delays your filing deadline—not your payment deadline. Louisiana requires all taxes owed to be paid by the original due date to avoid penalties and interest.

This covers everything you need to know about filing a Louisiana tax extension, including eligibility, deadlines, payment options, and FAQs.

Louisiana Tax Extension Rules

What is an Extension?

A Louisiana tax extension gives you more time to file your state income tax return. Individual taxpayers get an automatic extension, and the filing deadline is moved to November 15.

Important Notes:

  • An extension delays the filing deadline—not the payment deadline.
  • Late payments are subject to 12% annual interest and a 0.5% monthly penalty.

How to File a Louisiana Extension

Here’s how to file a Louisiana extension and meet state requirements:

Step 1: Meet Eligibility

To qualify for an extension, you must have all estimated taxes paid by the original due date, which for individual taxpayers is April 15.

Examples:

  • Example 1: If your estimated tax liability is $10,000 and you’ve already paid $8,000 through withholdings, you must pay $2,000 by April 15.

Step 2: File the Right Form

  • No form is required. Louisiana grants an extension for individual taxpayers automatically.

Step 3: Pay Taxes Owed

Calculate your total tax liability, subtract any payments made, and pay the balance by the original due date.

Example:

If your total tax liability is $15,000 and you’ve paid $12,000, you must pay $3,000 to avoid penalties.

Louisiana Tax Payment Portal Screenshot

Step 4: Make a Payment

  • By Mail: Send payments to
    • Louisiana Department of Revenue
    • P.O. Box 3550
    • Baton Rouge, LA 70821-3550.
    • Make checks payable to “Louisiana Department of Revenue” and include your Social Security number and tax year.

Step 5: Save Your Documents

Keep copies of your payment confirmation, federal extension (if applicable), and any Louisiana forms filed.

Don’t Make These Mistakes

  1. Not Making a Payment: Extensions only delay filing deadlines—not payment deadlines.
  2. Missing the April 15 Deadline: Payments must be postmarked by these dates to avoid penalties.
  3. Underestimate Your Amount Due: It’s better to overpay and get a refund than to underestimate and get penalties.

Louisiana Tax Extension FAQs

Do I have to pay my taxes when I file an extension?

Yes. Taxes owed must be paid by the original due date to avoid penalties.

Can I file my Louisiana extension electronically?

Individuals get an automatic extension.

What are the penalties for late payment?

Late payments are subject to:

  • 12% annual interest on the balance due.
  • 0.5% monthly penalty up to 25%.

Can I file a Louisiana extension if I don’t owe taxes?

Yes. Individual taxpayers get an automatic extension even if no taxes are owed.

What if I can’t pay my taxes in full?

Pay as much as you can to minimize penalties and interest. You can also request a payment plan from the Louisiana Department of Revenue.

Louisiana Tax Revenue

Louisiana Tax Revenue Chart of the General Fund Major Sources FY2023

Louisiana Comparision Chart for Tax Revenue Sources FY2022-2023

For fiscal year 2023, the general fund relied on:

  • Individual Income Tax: $4.56 billion
  • Sales & Use Tax: $4.49 billion
  • Corporate Income Tax: $1.2 billion
  • Other Revenue Sources: Severance ($877M), Petroleum ($603M), Corporate Franchise ($401M).

Revenue Growth: Individual income and sales taxes grew 1.4% and 2.6%, respectively, while corporate taxes grew 18.6%.

Review Louisiana's Full Annual Report

Conclusion

Filing an extension in Louisiana is easy, especially for individual taxpayers who get an automatic extension. To avoid penalties, make sure to pay any taxes owed by the original due date.

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Tax extensions can be tricky. Let us help you stay in compliance with Louisiana and IRS tax laws. Contact IRS Extension today!

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