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Updated 2025 Tax Year

Nassau County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.8%-1.2% of assessed value (varies by location and special districts)
1st Due
Nov 1
2nd Due
Mar 31
Exemptions
6+ Available
Section 1

How Property Tax Works

Nassau County, Florida operates under the state's property tax system, where property taxes are the primary funding source for essential services including public schools, law enforcement, fire protection, libraries, and county infrastructure. The county follows Florida's assessment and collection schedule, with taxes becoming due November 1st and offering early payment discounts through March 31st. Property owners in Nassau County typically face effective tax rates ranging from approximately 0.8% to 1.2% of assessed value, though this varies significantly based on location within the county.

The actual tax rate you pay depends on multiple factors including your specific location within Nassau County and which special taxing districts serve your property. These may include municipal taxes (if within city limits), school district levies, water management districts, and other special assessment districts. Florida's "Save Our Homes" constitutional amendment provides significant protection for homestead properties by capping annual assessment increases at 3% or the Consumer Price Index, whichever is lower, regardless of actual market value increases.

Section 2

What Makes Up Your Tax Bill

ComponentRate per $100Description
Nassau County General$6.8500County operations, services, infrastructure
Nassau County School District$7.5000Public school funding and operations
State of Florida$0.0000State-level services (varies by year)
Water Management District$0.2983St. Johns River Water Management District
Municipal TaxesVariesAdditional taxes if located within city limits
Special DistrictsVariesFire districts, library districts, other local services

Rates shown are estimates for FY 2025-2026 and may vary by specific location and special taxing districts. The combined millage rate typically ranges from 14-20 mills ($14-20 per $1,000 of assessed value) depending on your property's location and applicable special districts. Contact the Nassau County Property Appraiser for your exact millage rate.

Section 3

When Are Property Taxes Due?

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

First Installment
Nov 1
Delinquent after Dec 10
Second Installment
Mar 31
Delinquent after Apr 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 Nassau County are additional property tax assessments issued when there are changes to property ownership, new construction, or improvements completed after the January 1st assessment date. These supplemental bills cover the difference between the original assessment and the new assessed value, prorated for the remaining portion of the tax year. Common triggers include completing home additions, new construction receiving a certificate of occupancy, or major renovations that increase property value.

For example, if you complete a $100,000 home addition in August and your total tax rate is 1.5%, you would receive a supplemental tax bill for approximately $1,000 (the added value × tax rate × 8/12 months remaining in the tax year). Supplemental taxes are due within 30 days of the bill date and do not qualify for the early payment discounts available on regular annual tax bills.

Example Calculation

Example 1: $300,000 Property with Homestead

  • Market Value: $300,000
  • Homestead Exemption Applied: $50,000
  • Net Taxable Value: $250,000
  • Tax Rate: 1.50% (15 mills)
  • Annual Tax: $3,750
  • Monthly Escrow: $313

Example 2: $600,000 Property with Homestead

  • Market Value: $600,000
  • Homestead Exemption Applied: $50,000
  • Net Taxable Value: $550,000
  • Tax Rate: 1.50% (15 mills)
  • Annual Tax: $8,250
  • Monthly Escrow: $688

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

  • Market Value: $1,000,000
  • Net Taxable Value: $1,000,000 (no exemptions)
  • Tax Rate: 1.50% (15 mills)
  • Annual Tax: $15,000
  • Monthly Escrow: $1,250

Note: Homestead exemption requires annual application and applies only to primary residences. Rates vary by location within Nassau County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Nassau County require property tax escrow accounts, collecting 1/12 of your estimated annual property tax bill with each monthly mortgage payment. Lenders typically collect an initial escrow deposit at closing equal to 2-3 months of property taxes, then analyze the account annually to ensure adequate funding. Since Florida property taxes are due November 1st with discounts available for early payment through March, most lenders pay taxes in November or December to capture available discounts.

Property owners should verify that their lender is paying taxes on time and applying available discounts, as this directly reduces the total amount due. If your property tax bill changes due to assessment increases, exemptions, or special district changes, your monthly escrow payment may be adjusted. You can request an escrow analysis from your lender at any time and should receive an annual statement showing all deposits and payments made from your escrow account.

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 Nassau County property taxes due for the current fiscal year? A: Property taxes are due November 1st and payable through March 31st. Early payment discounts are available: 4% in November, 3% in December, 2% in January, and 1% in February.

Q: What is the homestead exemption and how do I apply? A: The homestead exemption reduces your taxable assessed value by up to $50,000 for your primary residence. You must apply with the Nassau County Property Appraiser by March 1st. Additional exemptions may be available for seniors, veterans, and disabled persons, but all require separate applications.

Q: Does the homestead exemption cap my property value increases? A: Yes, Florida's "Save Our Homes" benefit limits annual assessment increases to 3% or the Consumer Price Index (whichever is lower) for homestead properties, regardless of actual market value increases.

Q: How can I appeal my property assessment? A: File a petition with the Nassau County Value Adjustment Board by the deadline specified on your TRIM notice (typically in August/September). You must provide evidence supporting your claim that the assessed value exceeds market value.

Q: What happens if I pay my property taxes late? A: A 3% penalty is added April 1st, with an additional 1.5% penalty each month thereafter. Interest accrues at 1.5% per month on the unpaid balance.

Q: Can I pay my property taxes online? A: Yes, Nassau County offers online payment options through the Tax Collector's website. Credit card payments may incur additional convenience fees.

Q: Why did my tax bill increase even though tax rates stayed the same? A: Your assessed value may have increased due to market conditions, property improvements, or loss of exemptions. Remember that non-homestead properties don't have the 3% assessment increase cap.

Q: What special district taxes might apply to my property? A: Depending on location, you may pay additional taxes for municipal services, fire districts, library districts, or other special assessments. Check your tax bill or contact the Property Appraiser for specific districts affecting your property.

Q: Are property tax payments tax-deductible? A: Generally yes for federal income taxes, subject to current federal limitations. Consult a tax professional for specific advice regarding your situation.

Q: How do I transfer Save Our Homes benefits when moving within Florida? A: You can transfer (port) up to $500,000 of Save Our Homes benefit to a new homestead property within Florida. Apply with your new county's Property Appraiser within two years of establishing the new homestead.

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