Louisiana State Income Tax Calculator
Calculate your 2026 Louisiana state income tax. See your bracket breakdown, effective rate, and how Louisiana compares to neighboring states.
Your Tax Inputs
Louisiana’s published 2026 standard deduction is $12,838 single or $25,676 joint/head of household. Eligible excess federal medical deductions are additional. The common itemized amount is retained separately. Retirement adjustments, other state adjustments and credits are excluded; additional dependent, age and blindness exemptions were repealed.
2026 state authority and modeled scope — RIB 26-019 · 2026 state authority and modeled scope — RS 47:293The annual amount is gross income minus entered pre-tax deductions and modeled federal and state income tax. Monthly and weekly amounts divide it by 12 and 52. These allocations exclude Social Security and Medicare (FICA), local taxes, other payroll taxes, and unmodeled paycheck deductions. They do not estimate paycheck take-home or actual withholding.
Effective State Income Tax Rate vs Neighboring States
About Louisiana state taxes (Tax year 2026)
Louisiana’s published 2026 standard deduction is $12,838 single or $25,676 joint/head of household. Eligible excess federal medical deductions are additional. The common itemized amount is retained separately. Retirement adjustments, other state adjustments and credits are excluded; additional dependent, age and blindness exemptions were repealed.
Groceries are exempt from state sales tax. Prescription drugs are exempt.
Louisiana's new 3.0% flat rate is well below the national average, but its combined sales tax rate of 10.13% is the highest in the nation due to high local taxes.
Filing in Louisiana: returns for tax year 2026 are administered by the Louisiana Department of Revenue and are generally filed in 2027 by the federal April deadline unless Louisiana declares a state-specific extension. Tax type on this return: Flat. Top marginal rate: 3%. State sales-tax rate: 5%. For the most current contact info, see the Federation of Tax Administrators directory.
Louisiana — What is Louisiana's income tax rate? Louisiana levies a flat income tax of 3% on taxable income for 2026. Louisiana’s published 2026 standard deduction is $12,838 single or $25,676 joint/head of household. Eligible excess federal medical deductions are additional. The common itemized amount is retained separately. Retirement adjustments, other state adjustments and credits are excluded; additional dependent, age and blindness exemptions were repealed.
Louisiana — Does Louisiana tax groceries? No, groceries (unprepared food) are exempt from Louisiana's 5% state sales tax. However, local parishes may impose sales tax on groceries.
Louisiana — Why is Louisiana's combined sales tax so high? Louisiana has the highest combined sales tax rate in the nation (averaging 10.13%) due to extensive local parish and municipal sales taxes added on top of the 5% state rate.
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How this page is reviewed
See methodology, assumptions & sources
| Risk tier | High YMYL |
|---|---|
| Author | Calculover Editorial Team Tax education |
| Editorial owner | Calculover Tax & Payroll Desk State-tax methodology owner |
| Reviewer | Calculover Editorial Review Government-source and limitation review |
| Last reviewed | 2026-11-06 |
| Last verified | 2026-11-06 |
| Data effective date | 2026-01-01 |
| Jurisdiction | Louisiana |
Methodology
These pages estimate annual state income tax for the selected 2026 jurisdiction and filing status. The route's coverage panel identifies the supported income basis, deductions, credits and exclusions.
Assumptions
- Enter the income basis and eligible pre-tax deductions requested by the calculator; gross wages, federal AGI and state AGI are not interchangeable.
- Some methods require confirmed state facts or explicit projection assumptions. An unavailable component is not zero tax.
Limitations
- The estimate excludes unmodeled income, adjustments, local taxes and special filing situations. Utah's indexed-credit assumptions remain provisional while final 2026 instructions are pending.
- Annual liability differs from withholding and paycheck take-home. Confirm the current official forms and source versions for a complete return.
Sources
- State Tax Rates, Federation of Tax Administrators
- State Individual Income Tax Rates and Brackets, Tax Foundation
- State Government Resources, Internal Revenue Service
Professional guidance: This page is for state-tax education only and is not tax, legal, financial, or investment advice. State tax decisions and multi-state filing should be reviewed with a CPA or enrolled agent licensed in the relevant states.