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Updated 2025 Tax Year

Ascension County
Property Tax Guide

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

8 Official Sources
8 min read
Quick Facts
Tax Rate
0.8%-1.2% of assessed value (varies by special districts and location within county)
Exemptions
5+ Available
Section 1

How Property Tax Works

Ascension County property taxes fund essential local services including public schools, fire protection, law enforcement, libraries, and infrastructure maintenance. The Louisiana property tax system operates on an assessment-based model where properties are valued by the Parish Assessor and taxed by various local taxing authorities including the parish government, school board, and special districts.

Property tax rates in Ascension County typically range from approximately 0.8% to 1.2% of assessed value, though actual rates vary significantly by location within the county due to special taxing districts such as fire districts, drainage districts, and municipal boundaries. The effective tax rate you pay depends on which special districts serve your specific property address. Louisiana assesses property at a percentage of fair market value, with residential properties generally assessed at 10% of market value.

The assessment and collection process involves multiple entities working together to ensure accurate valuations and timely collection, providing the revenue stream necessary to maintain high-quality public services throughout Ascension County.

Section 2

What Makes Up Your Tax Bill

ComponentRate (mills)Description
Parish General5.75General parish operations and services
Ascension Parish School Board27.59Public education funding
Sheriff6.95Law enforcement services
Parish Library4.30Library system operations
Fire District (varies)8.00-15.00Fire protection and emergency services
Drainage District (varies)2.00-8.00Flood control and drainage maintenance
Municipal (if applicable)5.00-12.00City services for incorporated areas

Note: Rates shown are for FY 2025-2026 and represent typical ranges. One mill equals $1 per $1,000 of assessed value. Your actual tax rate depends on which special districts serve your property location. Fire districts, drainage districts, and municipal boundaries create significant variation in total rates across different areas of the county.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Ascension 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 Ascension County are additional property tax bills issued when there are mid-year changes to property ownership, value, or use. The most common triggers include property sales (change of ownership), completion of new construction, additions or major improvements to existing structures, and changes in property use or exemption status.

When a supplemental assessment is issued, it covers the period from the effective date of the change through the end of the current tax year. For example, if you purchase a home in March that was previously exempt from taxes, you would receive a supplemental bill covering March through December of that tax year. The calculation is prorated based on the number of months remaining in the tax year.

Example: If you buy a $400,000 home in June that triggers a supplemental assessment of $2,000 for the full year, you would owe approximately $1,167 covering July through December (6 months). Supplemental bills are typically issued 30-60 days after the assessor receives notification of the triggering event and are due within 30 days of the issue date.

Example Calculation

Example 1: $300,000 Home with Homestead Exemption

  • Market Value: $300,000
  • Assessed Value (10%): $30,000
  • Homestead Exemption: -$7,500
  • Net Taxable Value: $22,500
  • Tax Rate: 85 mills (0.085)
  • Annual Tax: $1,913
  • Monthly (with escrow): $159

Example 2: $600,000 Home with Homestead Exemption

  • Market Value: $600,000
  • Assessed Value (10%): $60,000
  • Homestead Exemption: -$7,500
  • Net Taxable Value: $52,500
  • Tax Rate: 95 mills (0.095)
  • Annual Tax: $4,988
  • Monthly (with escrow): $416

Example 3: $1,000,000 Investment Property (No Homestead)

  • Market Value: $1,000,000
  • Assessed Value (10%): $100,000
  • Exemptions Applied: $0
  • Net Taxable Value: $100,000
  • Tax Rate: 105 mills (0.105)
  • Annual Tax: $10,500
  • Monthly (with escrow): $875

Note: Tax rates vary by special district. Homestead exemption requires annual application and caps assessment increases. Examples use typical combined millage rates for illustration.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Ascension County require borrowers to maintain an escrow account for property tax payments, especially when the loan-to-value ratio exceeds 80%. Your lender collects monthly payments equal to 1/12th of your annual property tax bill, holds these funds in escrow, and pays your taxes directly to the Ascension Parish Tax Collector when bills are due.

Property taxes in Ascension County are typically due April 15 and October 15 each year, though exact dates may vary. Lenders usually pay taxes a few days before the due date to ensure timely payment and avoid penalties. Your lender will provide an annual escrow analysis showing how your tax payments were applied and any adjustments needed for the coming year.

If your property taxes increase due to reassessment or new special district taxes, your lender may require higher monthly escrow payments to cover the difference. You should verify that your lender has paid your taxes correctly by checking with the Ascension Parish Tax Collector, as you remain ultimately responsible for ensuring timely payment even when using escrow services.

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 Ascension County for FY 2025-2026? A: Property taxes are typically due April 15 and October 15 each year. Contact the Ascension Parish Tax Collector for exact due dates as they may vary slightly each year.

Q: What is the homestead exemption and how do I apply? A: The homestead exemption is available to property owners who occupy their property as their primary residence. It exempts up to $7,500 of assessed value from taxation and caps annual assessment increases. You must file an application with the Ascension Parish Assessor's office by April 1st of the year following purchase or change in occupancy status.

Q: Are there other tax credits available in Ascension County? A: Yes, credits may be available for senior citizens, disabled veterans, surviving spouses, and certain improvements like solar installations. Most credits require annual application with the Assessor's office and have specific eligibility requirements and deadlines.

Q: How often are properties reassessed in Ascension County? A: Louisiana law requires parish-wide reassessment every four years. Ascension Parish typically conducts reassessments in years ending in 0, 4, and 8. Individual properties may be reassessed more frequently if sold or significantly improved.

Q: What happens if I pay my property taxes late? A: Late payments incur penalties and interest charges. Interest begins accruing after the due date, and additional penalties may apply for extended delinquency. Properties with delinquent taxes may eventually face tax sale proceedings.

Q: Can I pay my property taxes online? A: Yes, the Ascension Parish Tax Collector typically offers online payment options through their official website. Payment methods usually include electronic bank transfers and credit/debit cards, though convenience fees may apply.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Ascension Parish Assessor's office, typically by August 31st following the assessment. If not resolved, you can appeal to the Louisiana Tax Commission. Documentation supporting your claim of incorrect valuation is essential.

Q: Why did my taxes increase even though I didn't improve my property? A: Tax increases can result from parish-wide reassessment, new or increased millage rates approved by voters, annexation into new special districts, or loss of exemption eligibility. The homestead exemption caps assessment increases but doesn't prevent all tax increases.

Q: What special districts might affect my property tax rate? A: Common special districts in Ascension County include fire protection districts, drainage districts, library districts, and municipal boundaries. Your specific property address determines which districts apply to your tax bill.

Q: How do I find out which special districts serve my property? A: Contact the Ascension Parish Assessor's office with your property address or parcel number. They can provide a detailed breakdown of all taxing authorities that apply to your specific location.

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