How to File an Amended Louisiana Return

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If you need to change or amend an accepted Louisiana State Income Tax Return for the current or previous Tax Year, you need to complete Form IT-540 (residents) or Form IT-540B (nonresidents and part-year residents). Forms IT-540 and IT-540B are Forms used for the Tax Amendment. You can prepare a current Louisiana Tax Amendment on eFile.com, however you cannot submit it electronically. In comparison, the IRS requires a different Form - Form 1040X - to amend an IRS return (do not use Form 1040 for an IRS Amendment).

The IRS might send you a notification to change an error on your Return, or you might have discovered an error. If you or the IRS amended or changed one of your IRS Tax Return(s), the IRS will report this to the Louisiana Tax Agency, thus you should file a Louisiana Amendment within one year.

Function

Description

Louisiana Tax Deadlines, Forms, Extension, Penalties

Instructions, Resources on how to prepare and e-File Louisiana Tax Returns or how to prepare an Extension and/or previous Year Tax Returns

Prepare, eFile a current LA + IRS Tax Return: Detailed eFile.com Service Overview

Start Federal and Louisiana Tax Returns

Prepare only a LA State Return

Step by step instructions on how to only Prepare - not e-File - one or more State Returns on eFile.com.

File a current Louisiana Tax Amendment

You can prepare a Louisiana Tax Amendment for the current tax year here on eFile.com; the amendment can not be e-filed. After you have prepared the amendment, download the PDF from your My Account, check the box and mail in the form to the address listed below. For other tax years complete the form below before you print, sign and mail in the form.
Option 1: Sign into your eFile.com account, modify your Return and download/print the LA Form IT-540 (residents) or IT-540 B (nonresidents and part-year residents) under My Account. Check the "Amended Return" box, sign the form, and mail it to one of the addresses listed below.
Option 2: If you don't have an eFile.com account follow the step by step instruction on how to prepare a tax return/amendment.
Option 3: If you want to do the math on your own paper return then complete, sign LA Form IT-540 or Form IT-540B - Print, Mail the Form to LA Tax Department to:
No Payment Attached Amendment Return:
Louisiana Department of Revenue
P.O. Box 3440
Baton Rouge, La 70821-3440
Payment Attached Amendment Return:
Louisiana Department of Revenue
P.O. Box 3550
Baton Rouge, La 70821-3550

Check this box on the LA Tax Return Form IT-540 or IT-540B. This Form can be used to file a: Tax Return, Tax Amendment, Change of Address.

Current tax year only: Prepare online on eFile.com until the October deadline. When done Print, Sign and Mail in - not eFile - Your Tax Amendment.

After the October deadline, Prepare, Print, Sign and Mail-In Form IT-540 or Form IT-540B

How to correct a rejected Tax Return

If your LA Tax Return was rejected by the LA Tax Agency - not eFile.com - instructions on how to correct a rejected Louisiana Tax Return.

For all Tax Years prior to the current tax year, Prepare, Print, Sign and Mail-In - see addresses above - your Tax Amendment as soon as possible. Select the appropriate form (Form IT-540 or IT-540B) for the Tax Year you are amending. You will also file an IRS Tax Amendment Form 1040X.

Check Your LA Tax Amendment Status

1. Call the LA Department of Revenue at 1-855-307-3893.
2. Contact the LA Department of Revenue

Louisiana Refund Deadlines

A. Three years from the due date of the original tax year return, including valid filing extensions.
B. One year from the final determination of the amended federal return or federal change, whichever is later, provided that the allowable refund is not more than the decrease in Louisiana tax attributable to the federal change or correction.
C. Two years from the payment of an assessment, provided the amended return raises issues relating only to the prior assessment and the refund does not exceed the amount of tax paid on the prior assessment.
D. Two years from the filing of an amended Louisiana return resulting in the payment of additional tax, provided that the current amended return raises issues relating solely to the prior amended return and that the refund does not exceed the amount of the tax payment made as a result of the prior amended return.
Additional Louisiana Tax Income Taxes Deadlines

Louisiana Income Tax Penalties

Find out how Louisiana Late Filing and Late Payment Penalties are calculated.
For IRS Tax and Late Filing Penalties we have an easy to use tool: The PENALTYucator.

File an IRS Tax Amendment by Tax Year

Instructions on how to prepare an IRS Tax Amendment on eFile.com, however the IRS does not accept Tax Amendments electronically.

Will I get a bigger tax refund in 2024?

Many taxpayers can expect a bigger tax refund on their 2023 taxes. To help you keep up with soaring inflation, the IRS is making bigger changes than usual that could save you big money on your 2023 taxes, which is the tax return you'll file in 2024.

Take control of your personal life relationships, finances, and taxes: follow the tips on this page and keep up with tax planning for next year. You can use this free 2023 Tax Estimator to get a high-level understanding of your taxes.

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