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Updated 2025 Tax Year

Franklin County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
6.0392% per $100 of assessed valuation (base county rate, varies by district)
Exemptions
5+ Available
Section 1

How Property Tax Works

Franklin County, Missouri operates on an ad valorem property tax system that funds essential local services including schools, roads, emergency services, and county operations. Property taxes are assessed annually based on the assessed value of real estate and personal property as determined by the Franklin County Assessor as of January 1st each year.

The property tax rate for Franklin County is 6.0392% per $100 of assessed valuation, effective January 1, 2025. However, your actual tax rate may vary significantly depending on your location within the county due to special taxing districts such as school districts, fire protection districts, library districts, and municipal services. These additional levies can substantially increase your total property tax burden beyond the base county rate.

Property taxes are the primary funding mechanism for local government services, and rates are set annually based on approved budgets and levies from various taxing jurisdictions. New residents should register with the Franklin County Assessor at 400 East Locust Street, Union, MO 63084 to ensure proper assessment and billing.

Section 2

What Makes Up Your Tax Bill

ComponentRate per $100Description
Base County Rate6.0392%Franklin County general operations and services
School DistrictsVariesLocal school district levies (varies by district)
Fire ProtectionVariesFire protection district assessments
Library DistrictsVariesPublic library service districts
Municipal ServicesVariesCity/town services (if applicable)
Special AssessmentsVariesRoad districts, ambulance, parks

Total Effective Rate: 6.0392% + Special District Rates

Note: These rates apply to the 2025 levy year. Your actual tax rate depends on which special taxing districts serve your property location. Contact the Franklin County Assessor for your specific rate calculation based on your property's jurisdictional boundaries.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Franklin 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 Franklin 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, property transfers, or improvements that increase assessed value after the January 1st assessment date.

When supplemental taxes are levied, they are calculated on a pro-rated basis for the remaining months in the tax year. For example, if you complete a home addition in June, you would be assessed supplemental taxes on the increased value for the seven remaining months of the tax year (June through December).

Example: If your home improvement adds $50,000 in assessed value and is completed in August, you would owe supplemental taxes on that $50,000 for 5 months (August-December). At a 6% tax rate, this would equal approximately $1,250 in supplemental taxes ($50,000 × 0.06 × 5/12 months).

Example Calculation

Property Value: $300,000

  • Assessed Value: $300,000
  • Available Tax Credits: -$1,100 (Senior/Disability Credit, if qualified and applied)
  • Net Taxable Value: $298,900
  • Annual Tax: $1,805 (at 6.0392% base rate)
  • Monthly Escrow: $150

Property Value: $600,000

  • Assessed Value: $600,000
  • Available Tax Credits: -$750 (Property Tax Credit, if qualified and applied)
  • Net Taxable Value: $599,250
  • Annual Tax: $3,621 (at 6.0392% base rate)
  • Monthly Escrow: $302

Property Value: $1,000,000

  • Assessed Value: $1,000,000
  • Available Tax Credits: $0 (typically income-limited)
  • Net Taxable Value: $1,000,000
  • Annual Tax: $6,039 (at 6.0392% base rate)
  • Monthly Escrow: $503

Note: These examples use the base county rate only. Special district taxes will increase these amounts. Tax credits require annual application and income qualification.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Franklin County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects monthly escrow payments along with your mortgage payment and pays your property taxes directly to the county when due.

Property taxes in Franklin County are due annually by December 31st. Lenders typically make tax payments in late December or early January to meet this deadline. Your escrow account is analyzed annually, and your monthly payment may be adjusted based on actual tax bills and account balance.

To verify escrow payments, you can check with the Franklin County Collector's office or view payment records online. If you pay taxes directly (without escrow), ensure payment reaches the county by the December 31st deadline to avoid penalties and interest charges. Keep detailed records of all tax payments for your files and potential tax deduction purposes.

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 Franklin County property taxes due for the 2025-2026 fiscal year? A: Property taxes are due annually by December 31st. For the current tax year, the final payment deadline is December 31, 2025.

Q: What tax credits are available and do they require application? A: Franklin County offers several tax credits including the Senior/Disability Credit (up to $1,100 for qualified homeowners) and Property Tax Credit (up to $750 for renters, $1,100 for owners). All credits require annual application and are NOT automatic.

Q: How does the Homestead Credit work? A: The homestead provision allows taxpayers 65+ with household income of $70,000 or less, or disabled individuals receiving Social Security, to defer tax increases beyond the previous year's amount. You must apply between January 1st and October 15th of the first qualifying year. This caps assessment growth rather than reducing market value.

Q: When can I appeal my property assessment? A: Assessment appeals must be filed after you receive your assessment notice, typically between March and May. Contact the Franklin County Board of Equalization for specific deadlines and procedures.

Q: What are the penalties for late tax payments? A: Late payments incur penalties and interest charges that accrue monthly after the December 31st deadline. Contact the Franklin County Collector for current penalty rates.

Q: Can I pay property taxes online? A: Yes, Franklin County typically offers online payment options. Check the Franklin County Collector's website for available electronic payment methods and any associated fees.

Q: Why did my tax bill increase when property values went down? A: Tax bills depend on both assessed values and tax rates. Even if your property value decreases, tax rates may increase to fund required services, resulting in higher overall taxes.

Q: How do special district taxes affect my bill? A: Special districts (schools, fire, library, etc.) add their own levies to the base county rate. Your total rate depends on which districts serve your specific property location within Franklin County.

Q: Do I need to register as a new resident? A: Yes, new residents should register with the Franklin County Assessor at 400 East Locust Street, Union, MO 63084 to ensure proper assessment and eligibility for available credits.

Q: What's the difference between tax credits and exemptions? A: Tax credits reduce your final tax bill dollar-for-dollar, while exemptions reduce the assessed value subject to taxation. Most programs in Franklin County are credits that require annual application and income qualification.

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