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Updated 2025 Tax Year

Osceola County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Base county rate 2.2762 mills, total rates typically 20+ mills (varies by district)
1st Due
Jul 1
2nd Due
Dec 1
Exemptions
6+ Available
Section 1

How Property Tax Works

Osceola County, Michigan operates under the state's property tax system, which serves as the primary funding mechanism for local government services, schools, libraries, and special districts. Property taxes in Osceola County fund essential services including public safety, road maintenance, parks and recreation, and local school districts. The county follows Michigan's standard assessment practices where properties are assessed at 50% of their true cash value (market value).

The effective property tax rate in Osceola County varies significantly by location within the county due to different combinations of special taxing districts, school districts, and municipal boundaries. For the 2025 tax year, the base county rate is 2.2762 mills, but total rates typically range from approximately 20-40 mills depending on your specific tax district. Each mill represents $1 per $1,000 of taxable value. Property owners should note that their actual tax rate depends on which school district, township, city, library district, and other special assessment districts serve their property location.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County Operating2.2762Base Osceola County operations and services
School DistrictVariesLocal school district operating millage (varies by district)
State Education Tax6.0000State-mandated education funding
Township/CityVariesMunicipal services (varies by municipality)
Library DistrictVariesPublic library services (where applicable)
Special AssessmentsVariesFire protection, ambulance, road districts

Rates shown are for levy year 2025. Total millage rates typically range from 20-40 mills depending on your specific location within Osceola County. The State Education Tax applies to non-homestead properties at the full rate, while homestead properties receive reduced rates. Contact the Osceola County Equalization Department for your exact district combination and total millage rate.

Section 3

When Are Property Taxes Due?

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

First Installment
Jul 1
Delinquent after Dec 10
Second Installment
Dec 1
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 Osceola County are additional property tax bills issued when there are mid-year changes to a property's assessed value. The most common triggers include change of ownership (sale/transfer of property), completion of new construction, additions or major improvements to existing structures, or correction of assessment errors. When these events occur, the county assessor recalculates the property's taxable value and issues a supplemental bill for the difference.

The supplemental tax is calculated by taking the difference between the new taxable value and the previous taxable value, then multiplying by the applicable millage rate for the remaining portion of the tax year. For example, if a property improvement completed in January increases taxable value by $50,000 and the total millage rate is 30 mills, the supplemental tax would be $1,500 ($50,000 ÷ 1,000 × 30 mills) prorated for the remaining months in the tax year. Supplemental bills are typically issued within 30-60 days of the triggering event and have separate due dates from regular property tax bills.

Example Calculation

Example 1: $300,000 Home with Homestead Credit

  • Market Value: $300,000
  • Assessed Value (50%): $150,000
  • Homestead Credit Applied: Caps assessment increases
  • Net Taxable Value: $150,000
  • Tax Rate: 25 mills (example district)
  • Annual Tax: $3,750
  • Monthly Escrow: $312.50

Example 2: $600,000 Home with Homestead Credit

  • Market Value: $600,000
  • Assessed Value (50%): $300,000
  • Homestead Credit Applied: Assessment increase limitation
  • Net Taxable Value: $300,000
  • Tax Rate: 28 mills (example district)
  • Annual Tax: $8,400
  • Monthly Escrow: $700

Example 3: $1,000,000 Property (Non-Homestead)

  • Market Value: $1,000,000
  • Assessed Value (50%): $500,000
  • No Homestead Credit: Full State Education Tax applies
  • Net Taxable Value: $500,000
  • Tax Rate: 35 mills (example district)
  • Annual Tax: $17,500
  • Monthly Escrow: $1,458.33

Note: Homestead credit requires annual application and limits assessment increases. Actual rates vary by specific tax district location within Osceola County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Osceola County require borrowers to maintain an escrow account for property taxes, especially for loans with less than 20% down payment. The lender collects 1/12th of the estimated annual property tax bill with each monthly mortgage payment and holds these funds in a separate escrow account. When property taxes are due (September 14 for summer taxes and February 14 for winter taxes), the lender pays the tax bills directly to the county treasurer on behalf of the homeowner.

Lenders typically conduct an annual escrow analysis to ensure adequate funds are collected, which may result in escrow payment adjustments. Property owners should verify that their lender has current assessment and millage information, especially after home improvements or assessment appeals. If your escrow account has a shortage due to tax increases, lenders may spread the shortage over 12 months or request a lump-sum payment. Homeowners can request escrow account statements and should review tax bills for accuracy even when paid through escrow.

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 Osceola County for the current fiscal year? A: Summer property taxes are due September 14, 2024, and winter taxes are due February 14, 2025. Interest begins accruing after 5 p.m. on the due date for late payments.

Q: What homestead tax credit is available and how do I apply? A: The Principal Residence Exemption (PRE) limits annual assessment increases and reduces State Education Tax. You must file Form 2368 with the local assessor by May 1st annually. This credit caps assessment growth but requires active application - it is not automatic.

Q: How often are properties reassessed in Osceola County? A: Properties are reassessed annually with notices typically mailed in March. The county conducts periodic reappraisals and physical inspections on rotating schedules to maintain assessment accuracy at 50% of market value.

Q: What is the deadline to appeal my property assessment? A: Assessment appeals must be filed with the local Board of Review, typically meeting in March. The exact deadline is printed on your assessment notice. You can also appeal to the Michigan Tax Tribunal if unsatisfied with the Board of Review decision.

Q: What penalties apply for late property tax payments? A: Interest accrues on unpaid taxes starting after 5 p.m. on the due date. Unpaid taxes become delinquent and are forwarded to the county treasurer, potentially leading to foreclosure proceedings after three years.

Q: Can I pay property taxes online in Osceola County? A: Contact your local township or city treasurer for online payment options, as payment methods vary by municipality within Osceola County. Many jurisdictions offer online payment systems with convenience fees.

Q: Are senior citizens eligible for property tax credits? A: Michigan offers various programs for seniors including the Homestead Property Tax Credit (Michigan Schedule H) for income-qualified residents. These require annual application through the state income tax return and are based on income limits.

Q: How do special assessment districts affect my tax bill? A: Special districts for fire protection, libraries, ambulance services, and road maintenance add millage to your base county rate. Your total rate depends on which combination of districts serve your specific property location.

Q: What documentation do I need to apply for the homestead credit? A: You need Form 2368 (Principal Residence Exemption Affidavit), proof of residency, and property deed information. The form must be filed with your local assessor's office by May 1st annually to maintain the exemption.

Q: How are property taxes calculated on new construction? A: New construction is assessed at 50% of market value when completed. A supplemental tax bill covers the partial year, and the property enters the regular assessment cycle the following year. Homestead credits must be applied for separately and are not automatically transferred.

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