Property taxes in Louisiana vary sharply by parish because each parish sets its own combined millage rate, and those rates run from roughly 87 mills in Lafayette Parish to about 157 mills in Grant Parish.1St. Tammany Parish Assessor’s Office. Louisiana Parish Millages Your bill is calculated by taking 10 percent of your home’s fair market value, subtracting the $7,500 homestead exemption if it applies, and multiplying what’s left by your parish’s total millage. The statewide effective rate averages about 0.55 percent of market value, one of the lowest in the country, but a $200,000 home can produce a bill nearly twice as high in one parish as another.2Tax Foundation. 2026 Louisiana Tax Rates and Rankings
How Your Assessed Value Is Set
Louisiana doesn’t tax the full market value of your home. The state constitution assesses residential land and improvements at 10 percent of fair market value.3Louisiana State Legislature. Louisiana Constitution Article VII Section 18 – Ad Valorem Taxes A home worth $200,000 has an assessed value of $20,000. Other property types use different ratios: electric cooperative property is assessed at 15 percent, public service property at 25 percent, and most other property, including business equipment, at 15 percent.
Fair market value is defined as the most probable sale price between a willing buyer and a willing seller in an open market. Your parish assessor determines that figure for every parcel. State law requires a full reassessment at least once every four years, so your assessed value can jump in a reassessment year even if nothing about your home has changed, simply because neighborhood sale prices have moved up.
Why Millage Rates Differ Between Parishes
One mill equals one dollar of tax per $1,000 of assessed value. If your combined rate is 100 mills and your taxable assessed value is $12,500, you owe $1,250.
Millage rates aren’t set at the state level. They’re voted on locally, and every taxing body inside your parish stacks its own levy on top: schools, the sheriff, fire protection, drainage, libraries, recreation districts, and any voter-approved bond debt each carry their own mills. Your total rate is the sum of all of them. Parishes with big school systems, multiple special districts, or active bond programs end up on the high end.
Recent figures from across Louisiana’s 64 parishes show how wide the spread is:1St. Tammany Parish Assessor’s Office. Louisiana Parish Millages
- Lafayette Parish: around 87 mills
- East Baton Rouge: around 117 mills
- Orleans Parish: around 130 mills
- Grant Parish: around 157 mills
- Statewide weighted average: about 101.5 mills
The practical effect: identical homes with identical exemptions can produce bills that differ by 80 percent or more depending on the parish. Bond millages, which fund school construction and other infrastructure, run for fixed terms and eventually expire, but new proposals appear on local ballots regularly. A single yes vote can add several mills to your rate for a decade or more.
The Homestead Exemption
The biggest tax break available to Louisiana homeowners is the homestead exemption. It shields the first $7,500 of assessed value on your primary residence from state, parish, and special ad valorem taxes.4Louisiana State Legislature. Louisiana Code RS 47:1703 – Exemptions Because residential property is assessed at 10 percent, that translates to the first $75,000 of market value being effectively tax-free.
Take a $175,000 home in a parish with a combined rate of 100 mills. Without the exemption, its $17,500 assessed value would generate a $1,750 bill. With the exemption applied, only $10,000 of assessed value is taxable and the bill drops to $1,000. For homes worth $75,000 or less, the exemption can eliminate the parish tax bill entirely.
To qualify, you must own and occupy the home as your primary residence by December 31 of the year you claim it. The exemption does not cover rental properties, vacation homes, or investment properties. It also does not apply to taxes levied by individual cities and towns, only state, parish, and special district levies.5FindLaw. Louisiana Constitution Article VII Section 20 – Homestead Exemption A surviving spouse who continues to occupy the home keeps the exemption, and property held in certain trusts qualifies when the settlor is also the primary beneficiary and occupant.
Extra Relief for Veterans and Seniors
Disabled Veterans
Veterans with a service-connected disability rating from the VA get additional assessed-value exemptions stacked on top of the homestead exemption:6Louisiana Department of Veterans Affairs. State Benefits
- 50 to 69 percent disability: an additional $2,500 of assessed value exempted
- 70 to 99 percent disability: an additional $4,500 of assessed value exempted
- 100 percent disability: exempt from all ad valorem taxes, except certain municipal assessments
A 100-percent-rated veteran effectively pays no property taxes at the parish level, which can be worth thousands of dollars a year in a high-millage parish.
Senior Assessment Freeze
Homeowners who are 65 or older, or who receive Social Security disability benefits, can freeze their home’s assessed value at its current level if their adjusted gross income is $100,000 or less.7Tangipahoa Parish Assessor. Special Assessment Freeze The freeze keeps your assessed value from rising during future reassessments, even if home prices in your neighborhood are climbing. You apply through your parish assessor and re-certify your income to stay eligible. The freeze locks in your current assessment; it doesn’t reduce it.
How to Appeal an Assessment You Think Is Too High
Louisiana gives you a defined process to challenge an assessment, but the window is short. Each year, parish assessors open the tax rolls for public inspection for 15 calendar days, typically between mid-August and mid-September.8West Baton Rouge Parish Assessor. Appeals During that period, you can review your valuation and raise concerns informally with the assessor’s office. Many disputes get settled here, especially when you can point to errors in square footage, lot size, or condition.
If the assessor won’t adjust, file a written protest with the parish Board of Review before the inspection period closes. The Board holds hearings and can raise or lower any assessment based on the evidence presented.9New Orleans City Council. Property Tax Assessments and Appeals The evidence that carries weight is concrete: a recent appraisal, recent sale prices of comparable nearby homes, and photographs showing physical problems like deferred maintenance or structural issues.
If the Board rules against you, you have 10 business days from receipt of the decision to appeal in writing to the Louisiana Tax Commission. A taxpayer still dissatisfied after that can take the matter to district court. Most homeowners who win their appeal do so at the Board of Review stage, and they win with documentation, not general complaints that the number feels high.
Deadlines, Penalties, and Tax Sales
Property taxes are due by December 31 each year and become delinquent the following day.10Louisiana State Legislature. Louisiana Code RS 47:2128 – Interest and Penalty The parish sheriff, not the assessor, is the official tax collector.11Vernon Parish Assessor. Frequently Asked Questions Some municipalities collect their own taxes separately. If your mortgage escrows for taxes, your lender pays the bill, but you remain legally responsible if the lender misses the deadline. Not receiving a bill in the mail doesn’t excuse the obligation.
Delinquent taxes accrue interest at one percent per month, noncompounding.12Louisiana State Legislature. Louisiana Code RS 47:2153 – Notice to Delinquent Tax Debtor That’s 12 percent a year.
If the debt stays unpaid, the parish sells it at a tax sale. Louisiana uses a tax lien certificate system: the winning bidder doesn’t buy the property itself but acquires the right to collect the delinquent amount plus a five-percent penalty and up to one percent per month in interest. The former owner has three years from the date the tax sale certificate is recorded to redeem the property by paying the purchaser’s full outlay, the penalty, accumulated interest, and any costs the purchaser incurred. Living on the property doesn’t extend that deadline. Once the three-year window closes, the tax sale purchaser can pursue full ownership through the courts. Homes are lost this way over relatively small back-tax balances; the process is slow but it is one-way.
Finding the Numbers for Your Parish
Each of Louisiana’s 64 parishes has an elected assessor who maintains the tax rolls, and most parish assessor websites let you search by address or parcel number to pull up your property’s assessed value, the millage rates applied to your taxing district, and any exemptions currently on file. The Louisiana Tax Commission publishes annual reports listing millages and total assessed values for every parish.
When you look at your data, read the individual line items that add up to your total millage. You’ll often find five or more separate levies stacked together: school operations, school bonds, the sheriff, fire protection, drainage, a recreation district. Each has its own rate and, in the case of bond millages, its own expiration date. Knowing which levies are permanent and which are temporary tells you what to expect on future bills, especially around election cycles when renewals and new bond proposals go on the ballot.