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Updated 2025 Tax Year

Grant County
Property Tax Guide

Everything you need to know about property taxes in Grant County, LA. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
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Quick Facts
Tax Rate
Varies by district location, approximately 1% base rate plus local district additions
1st Due
Dec 31
Exemptions
4+ Available
Section 1

How Property Tax Works

Grant County (Grant Parish), Louisiana operates under the state's property tax system to fund essential local services including schools, law enforcement, fire protection, and infrastructure maintenance. Property taxes in Louisiana are administered at the parish level, with the Louisiana Tax Commission providing oversight and the local assessor determining property values.

Property tax rates in Grant Parish vary by location within the county due to different combinations of special taxing districts, including school districts, fire protection districts, and other municipal service areas. While Louisiana's statewide average effective rate is approximately 1%, your actual rate in Grant Parish will depend on your specific location and the overlay of taxing districts that serve your property. The parish assessor evaluates all real property at fair market value, with taxes calculated based on assessed value after applying any eligible tax credits.

Section 2

What Makes Up Your Tax Bill

Based on available data for Grant Parish, Louisiana:

ComponentRateDescription
Parish General FundVariesBasic parish services and administration
School DistrictVariesLocal school funding
Fire ProtectionVariesFire department services (if applicable)
Special DistrictsVariesWater, drainage, or other municipal services

Note: Specific millage rates for FY 2025-2026 are not currently available in our research data. Contact the Grant Parish Assessor's Office or visit the Louisiana Tax Commission website for current millage rates. Your total tax rate depends on which special taxing districts serve your property location, so rates vary significantly within the parish.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Grant County, property taxes are due in two installments:

First Installment
Dec 31
Delinquent after Dec 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental tax bills in Grant Parish are issued when property ownership changes or new construction is completed during the tax year. These bills cover the difference between what was originally assessed and what should have been assessed based on the property's current status.

Common triggers include:

  • Property sales or ownership transfers
  • Completion of new construction or major improvements
  • Removal or loss of previously granted tax credits

Supplemental taxes are calculated on a pro-rated basis from the date of the change through the end of the tax year. For example, if you purchase a home in July and the previous owner didn't claim available credits, you may receive a supplemental bill for the increased assessment. The Grant Parish Tax Collector mails these bills directly to property owners throughout the year, even if you have an escrow account with your mortgage lender.

Example Calculation

Note: These examples use estimated rates since specific FY 2025-2026 millage rates are not available. Actual calculations will vary based on your property's taxing districts.

$300,000 Home:

  • Assessed Value: $300,000
  • Homestead Exemption: $75,000 (if eligible and applied for)
  • Net Taxable Value: $225,000
  • Estimated Tax Rate: 35 mills (3.5%)
  • Annual Tax: $787.50
  • Monthly (Escrow): $65.63

$600,000 Home:

  • Assessed Value: $600,000
  • Homestead Exemption: $75,000 (if eligible and applied for)
  • Net Taxable Value: $525,000
  • Estimated Tax Rate: 35 mills (3.5%)
  • Annual Tax: $1,837.50
  • Monthly (Escrow): $153.13

$1,000,000 Home:

  • Assessed Value: $1,000,000
  • Homestead Exemption: $75,000 (if eligible and applied for)
  • Net Taxable Value: $925,000
  • Estimated Tax Rate: 35 mills (3.5%)
  • Annual Tax: $3,237.50
  • Monthly (Escrow): $269.79

Credits shown require application and approval - they are not automatic.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Grant Parish require borrowers to maintain an escrow account for property taxes. Your lender collects monthly payments equal to 1/12 of your estimated annual tax bill and holds these funds to pay your taxes when due.

Property taxes in Grant Parish are due by April 30th each year. Your lender typically pays the full amount directly to the Grant Parish Tax Collector before this deadline. However, supplemental tax bills are mailed directly to you as the property owner, not your lender, so you're responsible for paying these separately even with an escrow account.

After paying your taxes, your lender will conduct an annual escrow analysis to ensure adequate funds are collected. If taxes increase, your monthly escrow payment may increase accordingly. You can verify tax payments by checking with the Grant Parish Tax Collector's office or requesting payment records from your lender.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Grant Parish for the current fiscal year? A: Property taxes are due on or before April 30th each year. If April 30th falls on a weekend or holiday, the due date extends to the next business day.

Q: What tax credits are available and how do I apply? A: The primary credit is the Homestead Exemption, which reduces taxable value by up to $75,000 for owner-occupied residences. This requires filing Form BOE-266/ASSR-515 with the Grant Parish Assessor. Additional credits may be available for seniors, veterans, or disabled persons - all require separate applications.

Q: How does the Homestead Exemption work? A: The Homestead Exemption is a tax credit that reduces your property's taxable assessed value, not its market value. It also caps annual assessment increases. You must file an application with the Grant Parish Assessor - it's not automatic when you purchase property.

Q: How often are properties reassessed? A: Louisiana law requires property reassessment every four years, though the Grant Parish Assessor may update values more frequently based on market conditions or property improvements.

Q: What happens if I pay my taxes late? A: Late payments incur penalties and interest charges. Contact the Grant Parish Tax Collector for specific penalty rates and payment options if you cannot pay by the April 30th deadline.

Q: Can I pay my property taxes online? A: Contact the Grant Parish Tax Collector's office directly for current online payment options and accepted payment methods.

Q: How do special district taxes affect my bill? A: Your total tax rate includes millages from all taxing districts serving your property location - parish general fund, school district, fire protection, and any municipal services. Rates vary significantly based on your specific address within Grant Parish.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Grant Parish Assessor within specified deadlines. Contact the assessor's office for appeal forms, deadlines, and required documentation to challenge your property's assessed value.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
4322 Juarez Ventura, Maria de la luz for Year 2025 - 2026propertysearch.grantcountywa.gov
02
County
Direct Assessment Calculators - RPOSD - LA Countyrposd.lacounty.gov
03
Tax Doc
Louisiana Tax Commissionstax.latax.la.gov
04
County
Grant County Property Taxesnacdashboard.nara.gov
05
State
State filing and payment deadlines extended for taxpayers ...revenue.louisiana.gov
06
Tax Doc
Annual Secured Property Tax Bill Insert – 2022-2023 ...ttc.lacounty.gov
07
County
Homeowners' Exemption - LA County Assessor - LACounty.govassessor.lacounty.gov
08
Homestead Exemptionlegis.la.gov
09
ACT No. 12legis.la.gov
10
County
FAQs - Auditor-Controller - LACounty.govauditor.lacounty.gov
All sources verified as of 2025 Tax Year

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