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Updated 2025 Tax Year

Terrebonne County
Property Tax Guide

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

9 Official Sources
8 min read
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Quick Facts
Tax Rate
0.8% to 1.2% of assessed value, varies by taxing districts including schools, fire, drainage, and municipal services
1st Due
Nov 15
Exemptions
5+ Available
Section 1

How Property Tax Works

Terrebonne County property taxes fund essential local services including schools, law enforcement, fire protection, and infrastructure maintenance. The county operates on a calendar year assessment basis, with taxes becoming due on November 15th each year and becoming delinquent on December 31st. Property owners receive their tax bills based on the assessed value of their property as of January 1st of the tax year.

The effective property tax rate in Terrebonne County typically ranges from approximately 0.8% to 1.2% of assessed value, though this varies significantly by location within the county. Your actual tax rate depends on which special taxing districts your property falls within, including school districts, fire protection districts, drainage districts, and other municipal service areas. Louisiana assesses property at a percentage of fair market value, with residential property generally assessed at 10% of market value.

Section 2

What Makes Up Your Tax Bill

ComponentMillage RateDescription
Parish General Fund5.75 millsBasic county services and operations
School Board25-35 millsVaries by school district location
Fire Protection5-15 millsVaries by fire district
Drainage Districts2-8 millsVaries by drainage district
Road Lighting1-3 millsWhere applicable
Library System3.5 millsParish-wide library services
Recreation Districts2-5 millsWhere applicable

Rates shown are approximate for FY 2024 and vary by specific location within Terrebonne County. One mill equals $1 per $1,000 of assessed value. Total millage rates typically range from 40-70 mills depending on your property's location and applicable special districts.

Section 3

When Are Property Taxes Due?

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

First Installment
Nov 15
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 taxes in Terrebonne County are additional property tax assessments that occur when there are changes to property ownership, value, or use during the tax year. The most common triggers include new construction completion, major renovations that increase property value, or changes in property classification (such as removing agricultural exemptions).

When a supplemental assessment is issued, it covers the period from when the change occurred through the end of the current tax year. For example, if new construction is completed on July 1st, the supplemental tax would cover July through December. The calculation uses the same millage rates as regular property taxes, applied to the increased assessed value for the applicable time period.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (10%): $30,000
  • Less: Homestead Tax Credit: -$7,500
  • Net Taxable Value: $22,500
  • Annual Tax (50 mills): $1,125
  • Monthly Escrow: $94

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (10%): $60,000
  • Less: Homestead Tax Credit: -$7,500
  • Net Taxable Value: $52,500
  • Annual Tax (50 mills): $2,625
  • Monthly Escrow: $219

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (10%): $100,000
  • Less: Homestead Tax Credit: -$7,500
  • Net Taxable Value: $92,500
  • Annual Tax (50 mills): $4,625
  • Monthly Escrow: $385

Examples assume 50-mill total rate and standard homestead credit. Tax credits require application and are not automatic.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Terrebonne County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects 1/12th of your estimated annual property tax bill with each monthly mortgage payment, depositing these funds into an escrow account. The lender then pays your property taxes directly to Terrebonne Parish when they become due on November 15th.

Lenders typically conduct annual escrow analyses to adjust your monthly payments based on actual tax bills and account balances. If your property taxes increase due to reassessment or millage rate changes, your monthly escrow payment may increase accordingly. You have the right to review escrow account statements and can contact your lender if you believe there are errors in the calculations or payments.

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 Terrebonne County? A: Property taxes are due November 15th each year and become delinquent on December 31st for the current tax year.

Q: What homestead tax credit is available and how do I apply? A: The homestead tax credit can provide up to $7,500 reduction in assessed value for owner-occupied homes. You must apply with the Terrebonne Parish Assessor's office and reapply if you move or change ownership.

Q: Does the homestead credit reduce my home's market value? A: No, the homestead credit is a tax credit that reduces your taxable assessed value, not your property's market value. It also caps annual assessment increases.

Q: How often are properties reassessed? A: Louisiana requires property reassessment every four years, though the Assessor may conduct interim adjustments for significant changes like new construction or major improvements.

Q: What happens if I pay my taxes late? A: Delinquent taxes after December 31st incur interest and penalties. Properties with delinquent taxes may eventually be sold at tax sales.

Q: Can I pay my property taxes online? A: Yes, Terrebonne Parish typically offers online payment options through their official website. Contact the Tax Collector's office for current payment methods.

Q: Why did my tax bill increase if my home value stayed the same? A: Tax increases can result from higher millage rates approved by various taxing districts, even if your assessed value remains constant.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Terrebonne Parish Assessor within specific deadlines, typically by August 31st following the assessment notice.

Q: Do senior citizens qualify for additional tax credits? A: Louisiana offers various tax credits for seniors and disabled persons. Contact the Assessor's office to learn about available programs and application requirements.

Q: What special district taxes might apply to my property? A: Depending on location, you may pay additional taxes for fire protection, drainage, recreation, road lighting, or other special districts serving your area.

Verified Sources

Backed by 9 Official Government Sources

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

01
TERREBONNE PARISH ASSESSOR Certifed Public A ...app.lla.state.la.us
02
Tax Doc
Terrebonne Parish Sales and Use Tax Departmentapp.lla.state.la.us
03
Tax Doc
RIB 21-006 Tax Return Filing and Tax Payment Deadlines ...dam.ldr.la.gov
04
Property Insurance Affordabilityapp.lla.state.la.us
05
Louisiana Laws Table of Contentslegis.la.gov
06
Tax Doc
Louisiana Property Tax Basicshouse.louisiana.gov
07
Tax Doc
Louisiana Tax Commissionstax.latax.la.gov
08
november-2019-990-index.csvirs.gov
09
Terrebonne Parish - The official website of Louisianalouisiana.gov
All sources verified as of 2025 Tax Year

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