Louisiana Income Taxes
Prepare and e-file your 2024 tax year Louisiana state tax return - resident, nonresident, or part-year resident returns - with your IRS return via eFile.com.
- State return only regulations*): Per IRS and Louisiana state tax agency regulation - not eFile.com - you can NOT just prepare and e-file a state return (with the exception of California) without also e-filing the IRS return on the same platform. If you have filed your federal return already, you can prepare a Louisiana state return on eFile.com and then download, print, and sign the return before you mail it in. See instructions on ONLY preparing a Louisiana and/or other state tax returns.
- File your LA and IRS returns online with eFile.com each year so you do not need to worry about mailing anything.
LA Tax Help and Resources
Prepare only a LA State Return
Where Is Your Louisiana Tax Refund Money?
Where Is Your IRS Refund?
Louisiana Income Tax Extension
Louisiana Income Tax Amendment
Louisiana, IRS Late Filing, Tax Payment Penalties
- Late Filing Penalty: Late filing penalties for tax returns generally start at 5% of the tax due for each 30 days of delay, capping at 25%. If the return is filed within 30 days of the due date, the penalty is 5% of the total tax due.
- Late Payment Penalty: Tax payment penalties at 5% of the tax due and increase by 5% every 30 days, reaching a maximum of 25%.
- Underpayment of Estimated Tax: The penalty for underpayment of estimated tax is 12% annually on the underpayment amount for the period it remains unpaid. This penalty applies if you do not pay enough estimated tax based on your income.
- IRS Penalties: Calculate and estimate your potential IRS income tax return penalties.
Louisiana Income Tax Brackets
Louisiana Income Tax Forms
Louisiana Income Tax Code
Louisiana Unemployment Benefits
Unemployment benefits are subject to Louisiana income taxes. Louisiana taxes unemployment benefits to the same extent as they are taxed under federal law.
Louisiana Marriage Penalty
Start Federal and Louisiana Tax Returns
e-File These Louisiana State Tax Forms
Prepare and e-file these state forms for 2024 tax year in conjunction with your federal and state income tax return. As you proceed through the tax interview on eFile.com, the application will select the correct state forms for you. You can also select tax forms individually. All these forms will then be e-filed by you to the state tax agency. Instructions on how to only prepare a state income tax return.
CIFT-620 - Application for Automatic Extension
IT-540ES - Louisiana Estimated Tax Declaration Voucher For Individuals
L-4 - Employee’s Withholding Allowance Certificate
IT-540 - Louisiana Resident
IT-540B - Louisiana Non-Resident and Part-Year Resident
LA-R-2868V - Louisiana Extension Payment Voucher
R-540V - Individual Income Tax Electronic Filing Payment Voucher
* Due to IRS and state tax agency data sharing and validation requirements, you can only e-file a state income tax return while also e-filing a federal income tax return. This is not an eFile.com created policy, but a federally regulated one which all online tax filing websites have to adhere to. You can, however, prepare all 44 state income tax returns on eFile.com if you have already e-filed or filed your IRS return. View instructions on how you can ONLY prepare and file state income tax return(s). Only on eFile.com can you prepare and file or e-file unlimited state tax returns for one low price and not pay for each state return like you would do on H&R Block® vs. TurboTax®. Dare to compare now.
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