Estimate your Louisiana state income tax plus combined federal and LA state tax for 2026. 3% top rate.
Louisiana significantly reduced its income tax with a top rate of 3% in 2025. Louisiana eliminated lower tax brackets and simplified its structure. Louisiana also eliminated its corporate income tax in the same reform package. Use the calculator above to estimate your combined federal and Louisiana state income tax for 2026. State tax figures use a simplified rate — for precise Louisiana state tax calculations, consult the Louisiana Department of Revenue or a licensed tax professional.
Louisiana uses a 3% top rate state income tax structure. Like most states, Louisiana starts its calculation from your federal Adjusted Gross Income (AGI), then applies state-specific adjustments — subtracting income Louisiana excludes from taxation (such as certain pension or Social Security income) and adding back any income Louisiana taxes that the federal government does not. After adjustments, the Louisiana standard deduction is applied, then the 3% top rate is applied to arrive at state taxable income.
Louisiana income tax is collected through employer paycheck withholding for W-2 employees and through quarterly estimated payments for self-employed residents and those with significant non-wage income. The Louisiana state return is generally due April 15, aligned with federal returns. Part-year residents and nonresidents who earn income sourced in Louisiana must also file a Louisiana return for that income portion.
Your Louisiana state income taxes are deductible on your federal Schedule A as part of the SALT (State and Local Tax) deduction, capped at $40,400 in 2026 under OBBBA. At the 22% federal bracket, paying $1,007 in Louisiana state income tax generates approximately $221 in federal tax savings, reducing the true net cost of your Louisiana taxes to about $786 for itemizing taxpayers.
Jordan is a single filer earning $75,000 in Louisiana. This shows how federal and Louisiana state income tax are calculated together.
Moving to a no-income-tax state (Texas, Florida, Nevada, or Wyoming) would save Jordan approximately $1,007/year ($83/month) in state income taxes. However, no-income-tax states often fund services through higher property taxes, sales taxes, or other fees, so a complete comparison requires evaluating all taxes together, not just income tax.
Louisiana Tax Rate and Annual Filing
Louisiana residents earning above the state filing threshold must file a Louisiana income tax return annually, typically due April 15. The 3% top rate applies after Louisiana-specific deductions and any state tax credits. Employers withhold Louisiana state income tax from employee paychecks throughout the year using Louisiana withholding tables, and any balance owed or refund due is settled when the annual state return is filed. Self-employed Louisiana residents make quarterly estimated payments to the state in addition to their federal quarterly estimated tax payments.
Federal SALT Deduction Reduces Net State Tax Cost
State income taxes paid in Louisiana reduce your federal taxable income through the SALT deduction (capped at $40,400 in 2026 under OBBBA). For a Louisiana resident in the 22% federal bracket paying $1,007 in state income tax, the SALT deduction recovers approximately $221 in federal taxes, so the true after-federal-benefit cost of Louisiana state income tax is about $786. This offset only benefits taxpayers who itemize deductions on federal Schedule A rather than taking the standard deduction.
Total Tax Burden: State Income Tax Is One Piece
State income tax is one component of your total tax burden in Louisiana. Property taxes, local income taxes (in some Louisiana cities and counties), and state and local sales taxes also contribute to your overall cost of living. When comparing Louisiana to other states, evaluate all tax types together rather than income tax in isolation. Use the calculator above to see your combined federal and Louisiana state effective rate at your specific income level.
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Louisiana has a 3% top rate state income tax for 2026. Louisiana significantly reduced its income tax with a top rate of 3% in 2025. Louisiana eliminated lower tax brackets and simplified its structure. Louisiana also eliminated its corporate income tax in the same reform package. The state income tax is calculated separately from federal income tax and is paid through payroll withholding or quarterly estimated payments.
Louisiana has its own state standard deduction separate from the federal standard deduction ($15,750 single, $31,500 MFJ in 2026). For precise Louisiana state deduction amounts, consult the Louisiana Department of Revenue or a state tax professional.
Louisiana's 3% top rate state income tax can be compared to other states using our state tax calculator above. The U.S. average top marginal state income tax rate is approximately 5-6%. Nine states have no income tax at all (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming), while California has the highest at 13.3%.
Louisiana offers state tax credits and deductions that may reduce your state tax liability. Common state credits include earned income credits, child tax credits, and credits for the elderly. Consult the Louisiana Department of Revenue website or a licensed tax professional for credits specific to your situation and income level.
Use the calculator above. Enter your income and LA is pre-selected as your state. The calculator computes your 2026 federal income tax using the One Big Beautiful Bill Act brackets (10%-37%), adds your estimated Louisiana state income tax (3% top rate simplified), and displays your total tax burden, combined effective rate, and annual take-home pay. All calculations happen instantly in your browser.