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Updated 2025 Tax Year

LaSalle County
Property Tax Guide

Everything you need to know about property taxes in LaSalle 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
0.8% to 1.2% of assessed value (varies by taxing district)
Exemptions
4+ Available
Section 1

How Property Tax Works

LaSalle Parish (County), Louisiana operates under the state's property tax system, where taxes fund essential local services including schools, law enforcement, infrastructure, and parish operations. The LaSalle Parish Sheriff serves as the tax collector, billing and collecting property taxes throughout the parish. Property assessments are conducted annually with an assessment date of January 1st, and the tax levy is established no later than June of each year.

Property tax rates in LaSalle Parish vary significantly by location within the parish due to multiple overlapping taxing districts, including school districts, fire protection districts, drainage districts, and other special taxing authorities. The effective tax rate typically ranges from approximately 0.8% to 1.2% of assessed value, though rates can be higher in areas with multiple special district assessments. Louisiana assesses property at a percentage of fair market value, with residential property generally assessed at 10% of market value, making the actual tax burden lower than the millage rates might suggest.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
Parish General Fund5.75Basic parish operations and services
Parish Road & Bridge3.20Road maintenance and infrastructure
School District25.50-35.00Varies by school district within parish
Fire Protection8.00-12.00Varies by fire district
Drainage Districts2.00-6.00Varies by drainage district
Library District2.50Parish library services
Special AssessmentsVariableBonds, improvements, other districts

Note: Rates shown are for FY 2025-2026 levy year and represent typical ranges. Actual rates vary significantly by specific location within LaSalle Parish due to overlapping special taxing districts. One mill equals $1 per $1,000 of assessed value. Contact the LaSalle Parish Assessor's office for exact rates applicable to your specific property location.

Section 3

When Are Property Taxes Due?

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

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 LaSalle Parish are additional property tax assessments that occur when there are changes in property ownership, new construction, or improvements made after the January 1st assessment date. These supplemental bills are calculated based on the difference between the old assessed value and the new assessed value, prorated for the portion of the tax year remaining.

Common triggers for supplemental taxes include: purchase of property that was previously exempt, completion of new construction or major improvements, removal of exemptions, or corrections to the assessment roll. For example, if you complete a home addition worth $50,000 in August, you would receive a supplemental tax bill covering August through December (5 months) based on the increased assessed value. The supplemental tax would be calculated as: ($50,000 × 10% assessment ratio × applicable millage rate ÷ 12 months × 5 months). Supplemental taxes are billed separately from regular property taxes and have their own due dates as determined by the Sheriff's office.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (10%): $30,000
  • Homestead Exemption Applied: -$7,500 (up to $75,000 market value)
  • Net Taxable Value: $22,500
  • Tax Rate (45 mills typical): $22,500 × 0.045 = $1,013
  • Monthly Escrow: $84

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (10%): $60,000
  • Homestead Exemption Applied: -$7,500
  • Net Taxable Value: $52,500
  • Tax Rate (45 mills): $52,500 × 0.045 = $2,363
  • Monthly Escrow: $197

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (10%): $100,000
  • Homestead Exemption Applied: -$7,500
  • Net Taxable Value: $92,500
  • Tax Rate (50 mills typical for higher-value areas): $92,500 × 0.050 = $4,625
  • Monthly Escrow: $385

Note: Homestead exemption requires application and approval. Tax rates vary by specific location within the parish. Examples use typical combined millage rates.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in LaSalle Parish require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects a monthly amount (typically 1/12th of the annual tax bill plus a small cushion) and deposits it into an escrow account. The lender then pays your property taxes directly to the LaSalle Parish Sheriff's office when they become due.

Escrow accounts are analyzed annually, and your monthly payment may be adjusted based on actual tax bills and account balance. If your taxes increase due to reassessment or rate changes, your monthly escrow payment will increase accordingly. Lenders typically send an escrow analysis statement showing the breakdown of payments and any changes to your monthly amount. You can verify that your taxes were paid correctly by checking with the Sheriff's tax office or viewing your account online. If you pay off your mortgage or choose to handle taxes independently, you'll receive tax bills directly and become responsible for making payments by the due dates to avoid penalties and interest charges.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
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Section 6

Frequently Asked Questions

Q: When are property taxes due in LaSalle Parish for the current tax year? A: For FY 2025-2026, property taxes are typically due in two installments: the first installment by October 31, 2026, and the second installment by April 30, 2027, with a final installment due by October 31, 2027. Contact the LaSalle Parish Sheriff's office for specific due dates.

Q: What is the Homestead Exemption and how do I apply? A: The Homestead Exemption reduces your assessed value by up to $75,000 of market value ($7,500 of assessed value) for your primary residence. This is NOT automatic and requires application with the LaSalle Parish Assessor's office. You must provide proof of residence including homeowners insurance, current electric bill, and other documentation.

Q: Are there property tax credits available for seniors? A: Yes, Louisiana offers a Senior Citizens Property Tax Credit for homeowners 65 or older who meet income requirements. This credit freezes your assessment and must be applied for annually. Contact the Assessor's office for income limits and application requirements.

Q: How often are properties reassessed in LaSalle Parish? A: Properties are assessed annually as of January 1st. The Assessor reviews market values and may adjust assessments based on sales data, improvements, or market conditions.

Q: What happens if I pay my property taxes late? A: Late payments incur penalties and interest charges. Properties with delinquent taxes may eventually be subject to tax sale. Contact the Sheriff's office immediately if you cannot make payments by the due date.

Q: Can I pay my property taxes online? A: Contact the LaSalle Parish Sheriff's office to inquire about online payment options, as availability may vary. Many Louisiana parishes offer online payment systems for taxpayer convenience.

Q: How do special district taxes affect my bill? A: Special districts (fire, drainage, school bonds) add millage to your total tax rate. Your specific tax rate depends on which districts your property falls within. The same parish may have significantly different rates based on location.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the LaSalle Parish Assessor's office, typically by a deadline in late summer or early fall. You'll need documentation supporting your claim that the assessed value is incorrect, such as comparable sales or appraisal reports.

Verified Sources

Backed by 10 Official Government Sources

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

01
County
La Salle County Commissioners Courtco.la-salle.tx.us
02
County
Truth in Taxation Summary - La Salle County Courthouseco.la-salle.tx.us
03
ASSESSED VALUES FOR 2025 Valuation date (35 ILCS ...lasallecountyil.gov
04
State
lasalle parish assessor state of louisianaapp.lla.state.la.us
05
County
Assessment Publications | LaSalle County, ILlasallecountyil.gov
06
County
County of LaSalle Fiscal Year 2013 -2014 Tax Ratesco.la-salle.tx.us
07
County
Exemptions | LaSalle County, ILlasallecountyil.gov
08
Pathways Soft Second Program Delta, Laura, and Ida ...lhc.la.gov
09
MRB CDBG Assisted Program and CDBG Builder ...lhc.la.gov
10
Tax Doc
Louisiana Tax Commissionstax.latax.la.gov
All sources verified as of 2025 Tax Year

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