Louisiana charges a state income tax on wages, retirement income, and other earnings

Louisiana has its own state income tax separate from federal income tax. The state taxes wages, salaries, self-employment income, retirement distributions, and investment gains. Unlike some states, Louisiana does not exempt retirement income or Social Security from taxation, though certain types of retirement accounts receive partial breaks.

The tax is progressive, meaning the rate increases as your income rises. Louisiana has three tax brackets that change each year based on inflation. For 2024, the rates are 2%, 4%, and 6%, but the income thresholds that determine which bracket you fall into shift annually. You pay the lowest rate on your first dollars earned, then move into higher brackets only on income above each threshold.

If you work in Louisiana or live there, you owe state income tax on your Louisiana-source income. If you live in Louisiana but work in another state, the rules depend on whether that state also taxes you and whether Louisiana has a reciprocal agreement with it. You file Louisiana taxes separately from your federal return, usually on Form IT-540 or a shorter form if your situation is straightforward.

Key Takeaways

  • Louisiana taxes income at three rates—2%, 4%, and 6%—depending on how much you earn, with thresholds that adjust yearly.
  • The state taxes wages, self-employment income, retirement distributions, and investment gains, but not all types of retirement accounts are taxed the same way.
  • You file Louisiana state taxes on a separate return from your federal taxes, usually Form IT-540.
  • If you work out of state, you may owe tax to both Louisiana and your work state, though reciprocal agreements and credits can reduce double taxation.

Louisiana's three tax brackets and how they work

Louisiana uses three income brackets. The first bracket taxes your initial earnings at 2%. Once your income exceeds the first threshold, the next portion is taxed at 4%. Income above the second threshold is taxed at 6%. The exact dollar amounts where each bracket begins change every year—the Louisiana Department of Revenue adjusts them for inflation.

For example, if the first bracket ends at $12,500 and the second at $50,000, a person earning $60,000 would pay 2% on the first $12,500, 4% on the next $37,500, and 6% on the final $10,000. You do not pay 6% on all $60,000; you only pay the higher rate on income above each threshold. This structure means your actual tax rate—the percentage of your total income that goes to Louisiana—is lower than the top bracket rate.

The state publishes updated bracket amounts in January each year. If you file taxes yourself, check the Louisiana Department of Revenue website or your tax software for the current year's thresholds. If you use a tax preparer, they will use the correct brackets automatically.

What income Louisiana taxes and what it does not

Louisiana taxes most types of income: W-2 wages, self-employment income from a business or freelance work, rental income, capital gains from selling investments, and distributions from retirement accounts like IRAs and 401(k)s. Interest and dividend income are also taxable.

Some income is exempt. Social Security benefits are not taxed by Louisiana. Military retirement pay and certain federal pensions receive partial exemptions under specific conditions. If you are over 59½ and withdraw from a traditional IRA or 401(k), the withdrawal is taxable, but if you are younger and withdraw early, you still owe Louisiana tax on the amount (though federal penalties may also explore). Roth IRA withdrawals of contributions (not earnings) are not taxed.

Unemployment benefits are taxable in Louisiana. Child support received is not taxable. Gifts and inheritances are generally not taxed, though any income those assets generate afterward is taxable. If you are unsure whether a specific type of income is taxable, the Louisiana Department of Revenue publishes guidance on their website, or you can contact them directly.

Filing requirements and important date

You must file a Louisiana state tax return if your income exceeds the filing threshold for your filing status. The threshold changes yearly with inflation. Generally, if you are required to file a federal return, you are also required to file a Louisiana return. If you are not required to file federal taxes but earned income in Louisiana, you may still need to file state taxes.

Louisiana state taxes are due on the same date as federal taxes: April 15 of the following year, or the next business day if April 15 falls on a weekend or holiday. You can request an extension, which gives you until October 15 to file, but taxes owed are still due by April 15—an extension only delays filing, not payment.

You file using Form IT-540 (the long form) or Form IT-540EZ (the short form for straightforward situations). You can file by mail, electronically through the state's website, or through tax software. If you owe money, you can pay online, by mail, or through an installment plan if you cannot pay in full by the important date.

Tax credits and deductions available in Louisiana

Louisiana offers several credits that reduce your tax bill dollar-for-dollar. The Earned Income Tax Credit (EITC) is available to low- and moderate-income workers and is often larger than the federal version. The Child and Dependent Care Credit helps offset childcare costs. The Dependent Exemption Credit provides a credit for each dependent you claim.

You can also deduct certain expenses. If you itemize deductions on your federal return, you can itemize on your Louisiana return as well. If you take the standard deduction federally, you take it on your state return too. Louisiana allows a standard deduction that varies by filing status and age, similar to the federal structure.

Some credits are refundable, meaning if the credit is larger than your tax bill, you receive the difference as a refund. Others are nonrefundable, so they can only reduce your tax to zero. Check the instructions for each credit to understand whether it is refundable. Tax software and preparers will explore credits automatically if you provide the necessary information.

What happens if you work in another state

If you live in Louisiana but work in another state, you typically owe income tax to both states on the income you earned out of state. However, Louisiana has reciprocal tax agreements with some neighboring states, and most states offer a credit for taxes paid to other states, which prevents you from paying the same income twice.

If you work in Mississippi, for example, you may owe tax to Mississippi on that income. You then claim a credit on your Louisiana return for the Mississippi tax you paid, reducing your Louisiana tax bill. The credit is limited to the lesser of what you paid to the other state or what you would have owed Louisiana on that income.

If you work in a state with no income tax (like Texas or Florida), you owe Louisiana tax on that income but no tax to the work state. The rules are complex and depend on which state you work in and how much you earned there. If your situation involves multiple states, a tax preparer familiar with your states can may support you file correctly and claim all available credits.

How to file Louisiana state taxes

You have three main options: file by mail, file electronically through the Louisiana Department of Revenue website, or use tax software. Electronic filing is fastest and reduces errors because the software catches common mistakes before submission.

If you file by mail, read Form IT-540 or IT-540EZ from the Louisiana Department of Revenue website, complete it by hand or print it from tax software, and mail it to the address listed on the form. Include any required schedules and documentation. Keep a copy for your records.

If you use tax software (such as TurboTax, H&R Block, or TaxAct), enter your Louisiana information when prompted, and the software will generate the correct forms and file them electronically. Many software programs offer free versions if your income is below a certain threshold. If you cannot afford software or prefer help, you can visit a tax preparer or a free tax preparation site in your area—the IRS maintains a list of free preparation locations.

Frequently Asked Questions

Does Louisiana tax Social Security?

No. Louisiana does not tax Social Security benefits. However, if you have other income (wages, retirement account withdrawals, investment income), that income is taxed normally. Social Security is one of the few income sources Louisiana exempts.

What is the Louisiana standard deduction?

The standard deduction varies by filing status and age and changes yearly. For 2024, it ranges from around $4,500 for single filers to higher amounts for married filers and those over 65. Check the current year's Form IT-540 instructions or the Louisiana Department of Revenue website for the exact amount that applies to you.

Can I deduct federal income tax paid on my Louisiana return?

Yes. If you itemize deductions on your Louisiana return, you can deduct state and local income taxes (SALT) paid, subject to a federal limit of $10,000 per year. If you take the standard deduction, you cannot deduct federal taxes separately.

What if I did not file Louisiana taxes in previous years?

Contact the Louisiana Department of Revenue. The longer you wait, the more interest and penalties accumulate. The department may work with you on a payment plan or penalty relief if you have a reasonable cause for not filing. Filing back returns voluntarily is better than waiting for the state to contact you.

Is there a penalty for filing late or paying late?

Yes. Louisiana charges penalties for late filing and late payment, plus interest on unpaid taxes. The penalties are calculated as a percentage of the tax owed and increase the longer the debt remains unpaid. Filing on time even if you cannot pay in full is better than filing late, because the late-filing penalty is steeper than the late-payment penalty.