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Louisiana Income Tax Calculator (2026 Flat Rate)

What does this come to under the current IRS rules?

Louisiana income tax at a flat 3% by filing status, with the state standard deduction, plus marginal and effective rate.

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Your figures
Example figuresIllustrative only. Type over them with your own.
Louisiana income tax
$2,165
Louisiana income tax on the figures entered, tax year 2026
Standard deduction (2026)
$12,838
Louisiana taxable income
$72,162
Drawn to one scale
Standard deduction (2026)$12,838
Louisiana taxable income$72,162
Tax from the rate schedule$2,165
Louisiana income tax$2,165
All results
MeasureResult
Standard deduction (2026)$12,838
Louisiana taxable income$72,162
Tax from the rate schedule$2,165
Louisiana income tax$2,165
Marginal rate3.00%
Effective rate on income entered2.55%
How this was worked out
Work shownrecomputed as you type
Taxable income = income - standard deduction - personal exemptions (when applied), not below zero
Tax = 3% x (income - standard deduction)
Standard deduction for 2026: $12,838 single or separate, $25,676 joint, surviving spouse or head of household
Louisiana income tax = tax from the rate schedule

Illustrative arithmetic on the figures you enter. Check the result against your firm's methodology before relying on it.

The formulas

  • Taxable income = income - standard deduction - personal exemptions (when applied), not below zero
  • Tax = 3% x (income - standard deduction)
  • Standard deduction for 2026: $12,838 single or separate, $25,676 joint, surviving spouse or head of household
  • Louisiana income tax = tax from the rate schedule

How it works

Tax year: 2026.

Louisiana taxes income at a flat 3%. Enter income before state deductions and choose whether to apply the state standard deduction and personal exemptions, or enter taxable income and switch them off. The tool computes state income tax only; credits other than those named are not applied.

Louisiana replaced its brackets with a flat 3 percent for tax periods beginning on or after January 1, 2025. The standard deduction is indexed to CPI; the 2026 amounts are those set in Revenue Information Bulletin 26-019 (September 2026), after a 2.7 percent CPI-U increase.

Local taxes: Louisiana parishes and cities do not levy a local income tax.

Illustrative figures only. Check the result against your firm's methodology before relying on it.

Common questions

What is the Louisiana income tax rate for 2026?

Louisiana taxes income at a flat 3% for 2026. Tax = 3% x (income - standard deduction).

What is the Louisiana standard deduction?

Single: $12,838; Married filing jointly or surviving spouse: $25,676; Head of household: $25,676; Married filing separately: $12,838 (2026, at low income).

Are there local income taxes in Louisiana?

Louisiana parishes and cities do not levy a local income tax.

Sources

Runs in your browser. The figures you type are not sent to CORAA or stored. Check the result against your firm's methodology before relying on it.

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