Updated October 8, 2026. Quick answer: Louisiana taxes individual income at a flat 3% for tax years 2025 and after, and the Department of Revenue says the graduated brackets and rates have been repealed. The newest standard deduction the Department prints is $12,500 for a single filer, set for 2025 and adjusted each year for inflation.
The Louisiana rate
| Taxable income | Rate |
|---|---|
| All taxable income, every filing status | 3% |
The Department’s rates and brackets page lists the flat rate under the heading for Tax Years 2025 and After. Its Individual Income Tax page says “income tax is computed at a a flat rate of 3%” (the typo is the Department’s). The Department’s FAQ also states that “the individual income tax rate is a flat 3%”. It adds “The graduated brackets and rates for income tax have been repealed”.
The standard deduction
| Filing status | Amount printed (2025) |
|---|---|
| Single or married filing separate | $12,500 |
| Married filing joint, qualifying surviving spouse, head of household | Double the single amount |
The FAQ answers: “single individuals and married filing separate is increased to $12,500” for taxable periods beginning on or after January 1, 2025. It says the deduction is “adjusted annually based on the percentage increase in the CPI”. No 2026 dollar amount appears in the documents read.
A worked example
As a computed example (an illustration, not a source figure), take $100,000 of Louisiana taxable income. At the flat 3% the tax is $3,000 (computed). Taxable income is the figure after the standard deduction.
What this page does not say
The Department’s pages label the rate for Tax Years 2025 and After and do not name 2026 separately. The documents read do not state a future rate change, and this page does not predict one.
Common mistakes
- Using the repealed graduated brackets from older articles.
- Using the $12,500 figure as a confirmed 2026 amount. It is the 2025 figure and the deduction is indexed.
- Applying 3% to gross income instead of Louisiana taxable income.
Related: how Louisiana taxes retirement income, whether Louisiana taxes pensions, how Louisiana taxes capital gains, and the federal 2026 tax brackets.
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Answer againSources
- Louisiana Department of Revenue FAQ: What are the individual income tax rates and brackets?: https://revenue.louisiana.gov/tax-education-and-faqs/faqs/income-tax-reform/what-are-the-individual-income-tax-rates-and-brackets/
- Louisiana Department of Revenue: Individual Income Tax: https://revenue.louisiana.gov/individuals/general-resources/individual-income-tax/
- Louisiana Department of Revenue FAQ: Are there any changes to the combined personal exemption-standard deduction?: https://revenue.louisiana.gov/tax-education-and-faqs/faqs/income-tax-reform/are-there-any-changes-to-the-combined-personal-exemption-standard-deduction/
- Louisiana Department of Revenue FAQ: Will the standard deduction change each year or stay the same?: https://revenue.louisiana.gov/tax-education-and-faqs/faqs/income-tax-reform/will-the-standard-deduction-change-each-year-or-stay-the-same/
- Louisiana Department of Revenue (where later updates appear; no figure on this page comes from it): https://revenue.louisiana.gov/
Sources: the primary documents linked above, read on October 8, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the plan administrator or the agency itself is the right place to confirm anything consequential.