Louisiana Salary & Paycheck Calculator 2026

Withholding on a Louisiana paycheck flows through Form L-4, the state's withholding exemption certificate. Louisiana underwent a structural tax overhaul in November 2024 (HB 1, Landry tax reform), converting from a 3-bracket progressive system topping at 4.25% to a flat 3% rate effective 2025. The standard deduction also jumped substantially — from $4,500 single / $9,000 MFJ to $12,500 single / $25,000 MFJ. The reform eliminated the federal income tax deduction (which Alabama still allows) along with several other carve-outs. New Orleans, Baton Rouge, Shreveport, and Lafayette all run pure state + federal + FICA paychecks — Louisiana has no local income tax anywhere.

Take-home math at three tiers, Louisiana single filer 2026 (post-reform 3% flat + new SD): $60,000 → about $4,400 federal + $4,590 FICA + $1,425 LA state (after $12,500 standard deduction) = $10,415 deductions, take-home $49,585 (83%). $100,000 → $11,800 federal + $7,650 FICA + $2,625 LA = $22,075, take-home $77,925 (78%). $150,000 → $24,000 federal + $9,275 FICA + $4,125 LA = $37,400, take-home $112,600 (75%). Louisiana's post-2025 take-home math is appreciably better than under the prior progressive system — most W-2 workers see $400-$1,200/year of additional take-home from the same gross wages, depending on income tier.

Louisiana's 2025 reform makes the state notably more competitive on income tax than its Gulf Coast peers — the new 3% flat rate plus $12,500 standard deduction beats Alabama's effective 3.5%-4% post-deduction rate, and matches Mississippi's flat 4% with a much higher deduction. The state has no estate tax and no inheritance tax. Property tax averages just 0.55% effective — among the lower rates nationally, kept low by the state homestead exemption that excludes the first $75,000 of assessed value from tax. Sales tax stacks 4.45% state + up to 7% local for combined ceilings near 11% in some New Orleans neighborhoods. Louisiana exempts up to $6,000 of retirement income for ages 65+, plus full Social Security exemption.

The single highest-leverage tactic for Louisiana W-2 earners post-reform is maxing pre-tax 401(k) and HSA, since Louisiana conforms to federal pre-tax treatment. A $24,500 401(k) deferral saves $735 in Louisiana state tax. Pre-reform planning carryovers are no longer relevant — the federal-tax deduction is gone, the bracket schedule is gone, and the higher standard deduction simplifies the return. Louisiana 529 START K12 contributions earn an in-state deduction up to $2,400 per beneficiary annually. New Orleans-area workers without a Louisiana residency anchor should evaluate relocation timing — pre-2025 Louisiana was a moderately high-tax state; post-2025 it's a competitive Sun Belt destination.