Jefferson Parish Property Tax: Rates & Appeals (2026)

Direct answer: For 2026, Jefferson Parish homeowners must first file an assessment review with the Jefferson Parish Assessor by Monday, August 31, 2026; if you still disagree after that review, the formal Board of Review appeal must be filed with the Jefferson Parish Council Clerk by Wednesday, September 2, 2026. Use the Assessor’s Assessment Appeal Form LAT 1 for single-family homes and residential rentals up to eight units; mail or deliver it to the Assessor’s Gretna or Harahan offices, or use the Assessor account system only if it accepts your LAT filing for the property. (jpassessor.com)

How assessments work in Jefferson Parish

Jefferson Parish property tax starts with the Assessor’s estimate of fair market value, not with your tax bill. Louisiana law lists land and residential improvements at 10% of fair market value for assessment purposes; commercial/other property is generally 15%, and public service property is different. (legis.la.gov)

For a homeowner, the basic math is: market value × 10% = assessed value. If the home is your domicile and you have homestead exemption, Jefferson Parish subtracts $7,500 of assessed value—the assessed-value equivalent of the first $75,000 of market value—before applying millage. The Assessor’s own tax-estimate page uses exactly that method. (jpassessor.com)

Louisiana is on a four-year real-property reappraisal cycle. State law requires real property to be reappraised at least every four years, and Louisiana Tax Commission rules identify 2024 as a statewide reappraisal year; 2026 is therefore an interim year, but values can still change for ownership changes, physical changes, data corrections, and market evidence reflected by the Assessor. (legis.la.gov)

For the 2026 roll, Jefferson Parish posted the preliminary/open-book period as Monday, August 17 through Monday, August 31, 2026. The Assessor states that appeal forms must be complete and submitted during that public-inspection period, and that an assessment review must be filed with the Assessor before a Board of Review appeal can be filed with the Council Clerk. (jpassessor.com)

Whether you should appeal

Appeal if the Assessor’s market value is higher than what your house would likely have sold for as of the assessment date, or if the record has a factual error: wrong living area, extra bathroom, finished area counted as living space, storm damage, a pool or improvement that is not there, or a homestead exemption missing from an owner-occupied home.

Do not appeal just because the tax bill is painful. The Board is reviewing value, classification, and exemptions—not whether millages are too high. Jefferson Parish has different 2025 total rates by ward: for example, Metairie/Ward 82 is 0.12621, River Ridge/Ward 91 is 0.12745, Kenner/Ward 92 is 0.10625, and Harahan/Ward 93 is 0.10064. Municipal residents may also receive municipal tax bills; the Assessor notes separate treatment for the five municipalities: Gretna, Westwego, Grand Isle, Harahan, and Kenner. (jpassessor.com)

A realistic Metairie example: assume the Assessor lists your owner-occupied home at $350,000, but three nearby arms-length sales and photos of unrepaired condition support $320,000. The market-value reduction is $30,000. Residential assessment is 10%, so the assessed-value reduction is $3,000. In Ward 82, using the latest posted 2025 total rate of 0.12621, estimated annual savings would be $3,000 × 0.12621 = $378.63. Homestead exemption does not change that marginal savings if both values are above the exemption amount; it just reduces the taxable base first.

Published Jefferson Parish-specific residential appeal success rates or median reductions were not located in the official sources reviewed, so do not assume odds from another parish. Treat your evidence as the case.

Step-by-step how to file

1. Look up your parcel. Search by address, owner, or parcel on the Jefferson Parish Assessor property search. The site says the 2026 preliminary roll is available and subject to change until approved by the Louisiana Tax Commission. (jpassessor.com)

2. Download the correct form. Most homeowners use “Assessment Appeal Form LAT 1 – Single-Family Residential Property and Residential Rental Property up to Eight Units.” Vacant lots use LAT 2 Appeals Form – Vacant Land; apartment properties use LAT 3 Appeals Form – Apartments; commercial property uses LAT 4 Appeals Form – Commercial. The Assessor’s forms page lists these printable forms. (jpassessor.com)

3. Attach evidence, not opinions. LAT 1 specifically asks for supporting items such as an appraisal, photos, a letter of explanation, repair estimates if damaged, and other documentation. It also says a separate form is needed for each property and that incomplete forms will be denied. (jpassessor.com)

4. File with the Assessor by August 31, 2026. The LAT 1 return address is: Thomas J. Capella, Assessor, Jefferson Parish, 200 Derbigny Street, Suite 1100, Gretna, LA 70053. The Assessor also lists an East Bank office at 1221 Elmwood Park Blvd., Suite 901, Harahan, LA 70123; office hours are 8:30 a.m.–4:30 p.m., Monday–Friday. (jpassessor.com)

Filing methods: Official sources support mail and in-person delivery to the Assessor. The Assessor registration page says registration is for online filing of LAT forms, but because the 2026 open-book notice points taxpayers to appeal forms and a public-inspection deadline, keep proof of any online submission. No official email filing address for residential assessment-review forms was found; do not rely on email unless the Assessor confirms it for your parcel.

5. If unresolved, file the Board of Review appeal by September 2, 2026. Jefferson Parish says the Board of Review appeal must be filed with the Jefferson Parish Council Clerk. The Council Clerk is Lizabeth Johnston, phone 504-364-2626. Council offices are listed at 1221 Elmwood Park Boulevard, 10th Floor, Jefferson, LA 70123 and 200 Derbigny Street, 6th Floor, Gretna, LA 70053; older official Clerk notices identify the Clerk’s office as Suite 6700, General Government Building, 200 Derbigny Street, Gretna. (jeffparish.gov)

Louisiana’s Board form is Form 3101, Appeal to Board of Review by Property Owner/Taxpayer for Real and Personal Property. It asks for the Assessor’s fair market value, the value you request, ward, assessment/tax bill number, contact information, and a copy of the complete appeal. (stax.latax.la.gov)

No official Jefferson Parish fee for filing an Assessor review or Board of Review assessment appeal was found in the cited official sources.

What happens after

The proper local appeal authority is the Jefferson Parish Council sitting as the Board of Review. For 2026, Jefferson Parish announced the Board of Review will take place at the Jefferson Parish Council meeting, Westbank Chambers, on Wednesday, September 9, 2026. Council meetings are held in the second-floor chambers of either the Yenni Building or the General Government Building; for this Board date, the Assessor’s notice specifies Westbank Chambers. (jpassessor.com)

Expect a short public-review setting, not a full-blown court trial. Louisiana rules say the Parish Council sits as the Board of Review, may use hearing officers, and can increase or decrease assessments based on fair market or use value. The Board must provide written notice of its determination and include Louisiana Tax Commission Appeal Form 3103.A for anyone who wants to go further. (law.cornell.edu)

Important evidence rule: submit your value evidence to the Assessor before the Board deadline. Louisiana rules warn that failing to submit information to the Assessor before the Board deadline may prevent you from using it later at the Louisiana Tax Commission. (doa.louisiana.gov)

If you lose at the Board, you generally have 30 calendar days from actual delivery or written transmission of the Board decision to appeal to the Louisiana Tax Commission using Form 3103.A. LTC appeals may be filed electronically on the Commission’s website, and the Commission can dismiss late or incomplete appeals. (doa.louisiana.gov)

Local tips

First, check exemptions before fighting value. Jefferson Parish’s homestead exemption is permanent while you own and occupy the home, but it is cancelled if you move or sell. To file, you must appear in person at either Assessor office with a recorded act of sale and photo ID showing the property address. (jpassessor.com)

Second, check the Special Assessment Level if you are 65 or older, permanently disabled, a qualifying disabled veteran, or a qualifying surviving spouse. It freezes assessed value, not the millage rate, so taxes can still move when tax rates change. Jefferson Parish says the income limit changes and homeowners should call for the current amount; state law for 2026 references a $100,000 federal AGI limit adjusted by CPI beginning in 2026, with a later constitutional note effective in 2027 if ratified. (jpassessor.com)

Third, use Jefferson Parish comparables carefully. A Kenner, Harahan, Gretna, Grand Isle, or Westwego sale may carry different municipal tax treatment and neighborhood value signals than unincorporated Metairie or River Ridge. For a clean appeal packet, include three to five nearby sales, a map, sale dates, square footage, condition notes, and photos of any defects that are visible from the street or inside the damaged area.

Finally, keep stamped or electronic proof of every filing. The timeline is tight: August 31 for the Assessor review, September 2 for the Board filing, and September 9 for the Board meeting.

Jefferson Parish Property Tax Rate

Jefferson Parish’s current official published millage table is the 2025 table, and the total rate varies by ward/location. Total rates shown by the Assessor are: Gretna 0.13599; Timberlane 0.15054; Un-Incorp Gretna 0.13304; Harvey Ward 30 0.13285; Harvey Ward 40 0.13164; Marrero 0.13164; Ames 0.13164; Ames #2 0.13164; Westwego 0.11585; 9 Mile Pt. 0.13127; Avondale 0.13127; Lafitte 0.11601; Grand Isle 0.13615; Jefferson 0.12621; Old Metairie 0.12621; Metairie 0.12621; River Ridge 0.12745; Kenner 0.10625; Harahan 0.10064. The Assessor also lists separate 2025 fees for some areas, including Harahan garbage/fire and MCG/Plantation Estates/Stonebridge/TNIBD fees.

Source: https://www.jpassessor.com/Resources/MillagesWards

When Are Property Taxes Due in Jefferson Parish?

For 2025 property taxes, Jefferson Parish Sheriff states that tax notices are normally mailed during the last week of November, taxes become due upon receipt, and become delinquent if not paid by December 31, 2025; payments made or postmarked by January 2, 2026 will not incur interest charges.

This is not the same as the assessment appeal deadline above. The appeal deadline is your window to contest your assessed value; the payment due date is when the resulting tax bill must be paid. Missing one does not affect the other, but missing either has real consequences — one forfeits your right to appeal for the year, the other can trigger penalties and interest.

Source: https://www.jpso.com/345/Property-Tax-Overview

Property Tax Exemptions in Jefferson Parish

• Homestead Exemption — Owner-occupied home used as the taxpayer’s permanent domicile; only one Louisiana homestead exemption may be granted.. First $7,500 of assessed value, equivalent to $75,000 of market value at Louisiana’s 10% residential assessment ratio, is exempt from property taxation. Yes, in-person signing at the Jefferson Parish Assessor’s office; bring recorded act of sale and photo ID showing the property address. Once initially filed, the exemption is permanent while the owner continues to own and permanently reside there. (Source: https://www.jpassessor.net/Resources/HomesteadExemption)
• Senior Citizens Special Assessment Level Homestead Exemption — Homeowner with homestead exemption who is age 65 or older by the end of the application year and meets the income requirement set by Louisiana law.. Freezes the assessed value of the home; it does not freeze the tax rate or annual tax bill. Yes, apply with the Assessor; once qualified, the Assessor states it remains permanent while the owner continues to own and occupy the home and the property value does not increase more than 25% because of construction or reconstruction. (Source: https://www.jpassessor.net/Resources/SeniorsSpecialAssessment)
• Disability-Related Special Assessment Level Homestead Exemption — Homeowner with homestead exemption who meets the income requirement and is either a homeowner with a VA service-connected disability rating of 50% or more, the surviving spouse of a qualifying armed-forces/Louisiana National Guard member killed in action/missing in action/POW over 90 days, or a homeowner who is permanently totally disabled as certified by a court or qualifying agency.. Freezes the assessed value of the home; it does not freeze the tax rate or annual tax bill. Yes, apply with the Assessor; income requirement changes annually and the Assessor says to call for the current requirement. (Source: https://www.jpassessor.net/Resources/SeniorsSpecialAssessment)
• Additional Disabled Veteran Homestead Exemption — Veteran with a service-connected disability rating of 50% or more, and certain surviving spouses of deceased veterans with a service-connected disability rating of 50% or more.. 50%–69% disability: additional $2,500 of assessed value exempt, for total exemption of $10,000; 70%–99% disability: additional $4,500 of assessed value exempt, for total exemption of $12,000; 100% unemployability or totally disabled: remaining assessed value is exempt from ad valorem taxation. Yes, apply/sign with the Assessor and provide U.S. Department of Veterans Affairs documentation showing extent of disability. (Source: https://www.jpassessor.net/Resources/HomesteadExemption)
• First Responder / Volunteer Firefighter Additional Tax Exemption — Property must have an active homestead exemption. First responder form requires a full-time public employee whose duties require rapid emergency response, who resides in the same parish as employer, and who is employed as peace officer, fire protection personnel, certified emergency services personnel, emergency response operator, or emergency services dispatcher. Volunteer firefighter form requires at least 24 hours of firefighter continuing education in the current year and active Louisiana State Firemen’s Association membership or listing on the Volunteer Firefighter Insurance Program roster.. Yes, signed and notarized application; Assessor’s forms say to mail or deliver the application. Apply by 2026-09-01. (Source: https://www.jpassessor.com/Resources/DownloadForm?formName=FirstResponderApplication)

How to Look Up Your Property Record in Jefferson Parish

You can look up your property's official record at https://www.jpassessor.net/Parcel/Search. Jefferson Parish Assessor property search allows searching by owner, property address, parcel number, or subdivision and the Assessor states its site provides ownership, assessed values, legal descriptions, estimated tax amounts, and related assessment information; 2026 preliminary roll values are noted as subject to change until approved by the Louisiana Tax Commission.