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Louisiana Income Tax Calculator 2026 — Flat 3% Rate
Estimated Louisiana state income tax at common income levels, combined federal + state burden, and the full Louisiana tax bracket table — 2025 rates.
Reviewed for accuracy June 2026 by Gary Sing
State tax type
Flat 3%
State tax at $75k
$2,250
Federal tax at $75k
$8,114
Combined eff. rate $75k
13.8%
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Louisiana income tax at common income levels — 2025
Single filer, 2025 federal standard deduction ($15,000). Federal tax uses 2025 IRS brackets.
| Income | Louisiana state tax | State eff. rate | Federal tax | Total tax | Total eff. rate |
|---|---|---|---|---|---|
| $50,000 | $1,500 | 3.0% | $3,962 | $5,462 | 10.9% |
| $75,000 | $2,250 | 3.0% | $8,114 | $10,364 | 13.8% |
| $100,000 | $3,000 | 3.0% | $13,614 | $16,614 | 16.6% |
Single filer. Federal tax computed on gross income minus $15,000 standard deduction using 2025 IRS brackets. State tax estimates are approximate — consult a tax professional for exact liability. Does not include FICA (Social Security + Medicare), local taxes, or deductions beyond the standard deduction.
Louisiana state income tax rate 2025
Flat rate: 3% on all taxable income
Louisiana enacted a flat 3.0% income tax rate in 2024 through a comprehensive tax reform package, replacing its prior three-bracket progressive system.
| Income | State tax rate | Note |
|---|---|---|
| All taxable income | 3% | Applied to federal AGI |
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Louisiana income tax — frequently asked questions
Does Louisiana have a state income tax?
Yes. Louisiana has a flat 3% income tax rate that applies to all taxable income.
What is the Louisiana state income tax rate for 2025?
Louisiana has a flat 3% state income tax rate for 2025. This rate applies to all taxable income.
How much Louisiana state income tax do I owe on $75,000?
On a $75,000 gross income (single filer, 2025), estimated Louisiana state income tax is approximately $2,250 (effective rate: 3.0%). Combined with federal income tax of approximately $8,114, total tax is about $10,364 — an overall effective rate of 13.8%.
What is the combined federal and Louisiana state income tax at $100,000?
At $100,000 gross income (single filer, 2025 standard deductions): federal income tax is approximately $13,614, Louisiana state income tax is $3,000, for a combined total of approximately $16,614 — an overall effective rate of 16.6%.
How does Louisiana's income tax compare to other states?
Louisiana's top rate of 3% places it among the lower-tax states nationally. The nine states with no income tax pay $0 in state income tax; the highest-tax states (California at 13.3%, Hawaii at 11%) have the largest state income tax burdens.