Tools · State Income Tax
Louisiana Income Tax Calculator (2026)
Estimate your Louisiana state income tax for 2026. Enter your taxable income and filing status to see what Louisiana taxes and your effective state rate, broken out line by line.
Louisiana state income tax calculator
- Taxable income entered
- $75,000
- Louisiana standard deduction
- −$12,500
- Income taxed by Louisiana
- $62,500
- Louisiana income tax
- $1,875
Louisiana replaced its old graduated brackets with a flat 3% rate starting in 2025 (Act 11). It pairs that with a large standard deduction of $12,500 single / $25,000 married-jointly.
Note on 2026 figures: The flat 3% rate is fixed for 2026. The standard deduction ($12,500/$25,000) is the enacted base amount and is now indexed to inflation each January starting 2026; the exact CPI-adjusted 2026 figure had not been posted at build, so the base amount is used here.
State figures: Louisiana Department of Revenue.
Estimate for 2026 state income tax only, based on annual tax brackets — it excludes federal income tax, Social Security and Medicare, local taxes, and any credits. This is general information, not tax advice.
How Louisiana income tax is figured
Louisiana applies a single flat rate to your taxable income (after any state deduction or exemption). Louisiana replaced its old graduated brackets with a flat 3% rate starting in 2025 (Act 11). It pairs that with a large standard deduction of $12,500 single / $25,000 married-jointly.
This estimate covers state income tax only. It does not include federal income tax, Social Security and Medicare, or tax credits. It is an annual-bracket estimate, not your final return. This is general information, not tax advice.
Income tax calculators for other states
Same 2026 engine, each with its own state rules.