Does Louisiana have a state income tax?

Yes. Louisiana has a state income tax with a top rate of 3.0%.

How much is Louisiana state tax on a $100,000 salary?

On a $100,000 salary in Louisiana, state income tax is approximately $2,517. Your estimated total take-home pay is $76,663/year.

What other taxes does Louisiana have?

Louisiana has a 4.45% state sales tax with local add-ons bringing combined rates to 9.55% on average (highest combined sales tax in the country, tied with TN). Property tax averages 0.55% effective — among the lowest in the country. Louisiana has a unique homestead exemption — the first $7,500 of assessed value (which is 10% of fair market value, so $75,000 of fair market value) is exempt from parish property tax. Federal income tax IS DEDUCTIBLE on LA return — uniquely beneficial (only 5 states have this: AL, IA, LA, MO, MT). LA also has property tax exemption for veterans and disability programs.

How does Louisiana compare to other states for taxes?

Louisiana's top rate of 3.0% compares favorably — below the national median for state income taxes.

Why is Louisiana's federal-tax-deductibility important?

Louisiana is one of only 5 states (with AL, IA, MO, MT) that allows federal income tax to be deducted on the state return. For a $100K single filer paying ~$13,200 federal tax, that's a $13,600 deduction on LA taxable income — saving ~$408 in LA tax (3% of $13,600). The benefit grows with income — a $200K filer saves ~$1,118; $300K saves ~$2,028. Combined with LA's flat 3% rate, this is one of the most structurally favorable income tax structures in the country.

How does Louisiana's flat 3% compare to neighbors?

LA's 3% flat is dramatically lower than MS's 5%, AL's 5%, and TX's 0% (TX has no income tax but high property tax 1.6-2.5% vs LA's 0.55%). For homeowners, LA's combined income + property tax burden is genuinely competitive with TX. AR's 3.9% is similar to LA after accounting for federal-deductibility. LA + AL + MS + AR represent the lowest-tax cluster in the Southeast.

What about hurricane risk and property insurance?

Louisiana coastal counties (Orleans, Jefferson, St. Tammany, Plaquemines, Lafourche, Terrebonne, Cameron, Calcasieu) face genuine hurricane risk. Hurricane Ida (2021), Katrina (2005), Laura (2020) all caused significant damage. Property insurance has become genuinely expensive in coastal LA — 30-100%+ rate increases since 2020. Inland LA (Baton Rouge, Lafayette, Shreveport, Monroe) has dramatically lower insurance costs. For homeowners, hurricane risk + insurance costs are the structural LA caveat to consider against the favorable tax structure.

State Tax Guide

Louisiana State Income Tax Guide (2026)

Q: What is Louisiana's income tax rate?

Louisiana switched to a flat 3% income tax effective tax year 2025 (Act 11 / HB 2 of 2024 First Special Session) — significant simplification from the prior 1.85% / 3.5% / 4.25% progressive structure. Combined with federal-tax-deductibility (federal income tax deducted on LA return), LA effective rate at most professional incomes lands ~2.0-2.5%.

Louisiana has a flat 3% income tax (post-2025 reform — significantly simplified from the prior 1.85%/3.5%/4.25% progressive structure) — combined with the unique federal-tax-deductibility benefit shared with only 4 other states.

Top State Rate

3.0%

$100k Take-Home

$76,663

/year (single)

State Tax on $100k

$2,517

single filer

Louisiana Income Tax Brackets (2026)

Marginal Rate	Taxable Income (Single Filer)
3%	$0→All income — Louisiana switched to flat rate effective 2025

Each rate applies only to income within that bracket. Your effective rate is the average across all brackets — meaningfully lower than your top marginal rate.

Standard deduction: $4,500 single / $9,000 married filing jointly

Brackets reflect the most recently published schedules. Some states inflation-index thresholds annually — specific 2026 amounts may shift slightly. Verify with your state's Department of Revenue before filing.

$100,000 Salary in Louisiana — Full Tax Breakdown

Category	Annual	Monthly
Gross Salary	$100,000	$8,333
Federal Tax	−$13,170	−$1,098
FICA (SS + Medicare)	−$0.00	−$0.00
Louisiana State Tax	−$2,517	−$210
Take-Home Pay	$76,663	$6,389

Assumes single filing status, standard deduction, no 401(k) or HSA contributions. 2026 tax year.

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The 30-second version

1.Louisiana switched to a flat 3% income tax in 2025 — significantly simplified from prior progressive structure. Combined with federal-tax-deductibility, effective rate ~2.0-2.5%.
2.Federal income tax DEDUCTIBLE on LA return — uniquely beneficial structure shared with only 4 other states (AL, IA, MO, MT). Saves $408-$2,028+ depending on income.
3.Property tax 0.55% effective — among the lowest in the country. LA homestead exemption $7,500 of assessed value (= $75,000 fair market value).
4.Sales tax stack 9.55% combined — highest in the country, tied with TN. Major retail purchase costs.
5.Major employers: ExxonMobil Baton Rouge + Lake Charles, Marathon Petroleum, Phillips 66, Shell Norco, LSU Health Shreveport + New Orleans, Ochsner Health (largest healthcare in LA), Capital One New Orleans operations, Entergy Louisiana, Tabasco Brand (Avery Island). Oil & gas + healthcare + petrochemicals + Baton Rouge state government anchor.

Why you can trust these numbers

Numbers reflect 2026 IRS federal brackets, FICA caps, and Louisiana Department of Revenue flat-rate schedule per Act 11 of 2024 (1st Special Session). The calculator at the top of this page applies LA's flat 3% rate but does NOT yet model the federal-tax-deductible benefit — your actual LA tax (after federal-tax-deduction adjustment) is meaningfully lower than calc shows. Standard deduction $4,500 single / $9,000 MFJ. LA conforms to federal AGI starting point with the federal-tax-deduction adjustment.

Sources: federal brackets + standard deduction from IRS Rev. Proc. 2025-32; state brackets verified against the Tax Foundation 2026 State Income Tax Rates compilation and the official IT-540 Individual Income Tax Forms (LA Department of Revenue).

Our honest opinion (which is just an opinion)

Louisiana is the underrated structural low-tax winner of the Gulf Coast for working professionals + retirees. The combination of flat 3% income tax + federal-tax-deductibility + lowest property tax in the country (post-homestead) creates one of the most favorable tax structures in the US. The major catch is the highest combined sales tax in the country (9.55% — tied with TN) and hurricane risk + insurance costs in coastal counties.

The case for Louisiana:

Flat 3% income tax — among lowest in the country
Federal income tax DEDUCTIBLE — saves $408-$2,028+ at typical professional income levels
Property tax 0.55% effective — among lowest in the country
$7,500 homestead exemption (= $75,000 fair market value) reduces parish property tax
Distinctive culinary + cultural + music heritage (New Orleans, Cajun country)
ExxonMobil + Marathon + Shell + Phillips 66 + Ochsner Health + LSU Health major employers

The case against:

Highest combined sales tax in the country (9.55% average, tied with TN)
Hurricane risk + property insurance costs significant in coastal counties
Standard deduction modest ($4,500 single)
Limited high-comp white-collar career mobility (smaller market than Houston or Atlanta)
Wage growth has lagged neighboring TX / GA over past decade
Some coastal LA insurance markets have become genuinely difficult post-2020

Honest take: Louisiana is genuinely competitive for working professionals — especially Baton Rouge state government, ExxonMobil Baton Rouge / Lake Charles, Ochsner Health New Orleans, oil & gas industry workers in Lafayette / Shreveport. For retirees with paid-off housing in inland LA (away from hurricane zones), LA's combined low income tax + low property tax + federal-tax-deductibility is among the best retirement deals in the country. The sales tax stack is the structural offset on retail spending; hurricane risk is the structural caveat for coastal homeowners.

Sources & further reading

A few honest notes

Not personal tax, legal, or financial advice. Verify with a licensed CPA, EA, or tax attorney before making meaningful decisions.
Tax law changes. This guide reflects 2026 IRS schedules and current Louisiana Department of Revenue rules per Act 11 of 2024 1st Special Session.
Federal income tax deductibility is one of LA's distinguishing features — file LA Form IT-540 carefully to claim the federal deduction.
Property tax estimates vary by parish (Louisiana's county-equivalent). Pull actual bills from your parish tax assessor.
Hurricane insurance is the structural LA caveat for coastal homeowners — verify rates pre-purchase.
The numbers are illustrative — scenarios don't include every credit, deduction, or wrinkle that might apply to you.
No client relationship is created by reading this page.

Last updated April 2026 with 2026 IRS schedules and current Louisiana Department of Revenue guidance.

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