Louisiana Tax Guide: New Flat 3% Income Tax

Louisiana recently reformed its tax code with a flat rate. Learn about all state tax obligations for the 2025 tax year.

3.0%
Flat Income Tax Rate
9.55%
Combined Sales Tax
0.56%
Property Tax Rate
#42
Tax Burden Rank

Tax Overview

Louisiana underwent major tax reform effective 2025, replacing its progressive income tax system (with rates from 1.85% to 4.25%) with a flat 3% rate. This reform also eliminated the state's unusual deduction for federal income taxes paid and consolidated several credits and deductions. The result is a simpler, flatter system with one of the lower income tax rates among states that levy one.

Sales tax in Louisiana remains among the highest in the nation. The state rate was reduced to 4.45% as part of the reform package, but local parish and municipality taxes add substantially, pushing combined rates above 9.5% in many areas. Louisiana has historically had some of the highest combined sales tax rates in the country. Groceries are exempt from the state sales tax but may be subject to local taxes.

Property taxes in Louisiana are among the lowest in the nation, with an effective rate around 0.56%. The state offers a generous homestead exemption that shields the first $75,000 of a home's assessed value from parish taxes. Louisiana also provides a special assessment level freeze for seniors age 65 and older with income below certain thresholds.

Income Tax

Louisiana adopted a flat 3% income tax rate effective 2025, replacing a progressive system with rates from 1.85% to 4.25%. The federal tax deduction was eliminated.

Flat Tax Rate: 3.00%

Sales Tax

State Rate4.45%
Avg. Local Rate5.10%
Combined Rate9.55%

Property Tax

Effective Rate0.56%
Median Annual Bill$905

Key Deductions in Louisiana

  • Standard deduction matching federal amounts (post-reform)
  • Homestead exemption for first $75,000 of assessed value
  • Retirement income exclusion provisions
  • Earned income tax credit
  • School readiness tax credit for child care expenses
  • Inventory tax credit for businesses

Filing Information

Filing Deadline: May 15

Tax Authority: Louisiana Department of Revenue

Phone: (855) 307-3893

Website: https://revenue.louisiana.gov

Frequently Asked Questions

What changed with Louisiana's 2025 tax reform?
Louisiana replaced its progressive income tax (1.85%-4.25%) with a flat 3% rate, eliminated the federal income tax deduction, consolidated credits, and reduced the state sales tax rate. The goal was to create a simpler, more competitive tax system.
Why are Louisiana sales taxes so high?
Louisiana has a high combined sales tax rate because both the state and local parishes levy their own taxes. While the state rate is 4.45%, local taxes can add 5% or more, creating combined rates that often exceed 9.5%.
Does Louisiana tax Social Security?
No, Louisiana does not tax Social Security benefits. The state also provides various exemptions for retirement income, making it relatively friendly for retirees from an income tax perspective.
When are Louisiana taxes due?
Louisiana has an extended filing deadline of May 15, giving residents a full month beyond the federal April 15 deadline. This is one of the latest state filing deadlines in the country.

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