Louisiana Tax Calculator 2026
Louisiana currently uses a flat state income tax rate of 3%.
LA
Louisiana state income tax estimator for filing year 2026
Use this page to estimate your 2026 state tax filing for Louisiana. The calculator pre-selects Louisiana and applies the flat-tax structure so you can model withholding and net owed/refund faster.
Louisiana tax profile snapshot
- State: Louisiana (LA)
- Filing year: 2026
- Tax year data applied: 2025
- Louisiana currently uses a flat state income tax rate of 3%.
Need federal and state in one view?
Use the full Tax Calculators page for side-by-side federal and state workflows.
Frequently asked questions
Does Louisiana have state income tax for filing year 2026?
Yes. Louisiana applies state income tax rules in the current dataset for tax year 2025.
What Louisiana rate assumptions are used on this page?
Louisiana is modeled with a flat rate of 3%.
Should I use this page or the main tax calculator?
Use this page for a state-specific workflow preloaded to one state and year. Use the main tax calculator if you need both federal and state tabs together or want to switch states quickly.