How Louisiana state tax withholding works
Louisiana taxes wage income, so your employer withholds Louisiana income tax from each paycheck in addition to federal tax. You tell your employer how much to withhold on Form L-4 (R-1300) (Employee's Withholding Allowance Certificate), the state’s counterpart to the federal Form W-4.
For 2026, Louisiana applies a flat 3% rate to your taxable wages, after a standard deduction of $12,875 (single) or $25,750 (married filing jointly).
Enter your pay above to see your estimated Louisiana withholding per paycheck and per year, alongside your federal withholding and the exact W-4 entries.
Louisiana vs. federal withholding
Your Louisiana and federal withholding are figured separately. Federal withholding follows the IRS Publication 15-T tables and your Form W-4; Louisiana withholding follows the state’s own rates and your Form L-4 (R-1300). Getting one right doesn’t guarantee the other — this calculator handles both so you don’t owe a surprise bill to either the IRS or Louisiana.
Important Louisiana notes
- Louisiana moved to a flat 3.0% rate for 2025 onward.
Frequently asked questions
Sources & disclaimer
Federal figures use the 2026 IRS Publication 15-T. Louisiana withholding is based on the 2026 Louisiana income-tax structure; confirm exact figures and complete Form L-4 (R-1300) at the revenue.louisiana.gov website.
This tool provides estimates for educational purposes and is not tax advice. State withholding is modeled from the state’s income-tax rules and may differ from the exact wage-bracket tables your employer uses. Verify against your pay stub and consult a qualified tax professional before submitting your W-4 or Form L-4 (R-1300).