Rate Breakdown

Property taxes in St. Clair County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in St. Clair County

Property taxes in St. Clair County are determined by two primary factors: the Taxable Value of your property and the local millage rates. Each year, local assessors determine the Assessed Value (AV), which is intended to be 50% of the property's market value. However, the Taxable Value (TV) is often lower due to the Headlee Amendment and Proposal A, which limit annual increases to the rate of inflation or 5%, whichever is less, unless there is a transfer of ownership.

The total tax bill is calculated by multiplying the Taxable Value by the local millage rate. One mill is equal to $1 of tax for every $1,000 of Taxable Value. These millage rates are set by local government entities, including school districts, the county, townships, and cities, to fund public services such as education, emergency response, and infrastructure.

Available Exemptions

Michigan offers several exemptions to help reduce the tax burden for eligible residents. These programs must be applied for through your local assessor’s office:

• Principal Residence Exemption (PRE): Commonly known as the homestead exemption, this removes the school operating millage from your tax bill for your primary residence.
• Disabled Veterans Exemption: Provides a 100% property tax exemption for honorably discharged veterans with a permanent and total service-connected disability.
• Poverty Exemption: Available to low-income homeowners who meet specific income and asset guidelines established by their local municipality.
• Senior/Disabled Deferments: Certain seniors or individuals with disabilities may qualify to defer their summer tax payments until the following February without penalty.

Payment Schedule & Deadlines

Property taxes in St. Clair County are typically billed in two installments:

• Summer Taxes: Billed on July 1 and generally due by September 14.
• Winter Taxes: Billed on December 1 and due by February 14 of the following year.

If payments are not received by the due date, interest and penalties accrue monthly. Once the final deadline passes in late February, delinquent taxes are turned over to the St. Clair County Treasurer. At this stage, additional fees and interest charges increase significantly, and long-term delinquency can eventually lead to property forfeiture.

Appealing Your Assessment

If you believe your property’s Assessed Value or Taxable Value is inaccurate, you have the right to appeal. The process begins at the local level:

1. March Board of Review: You must first protest your assessment at the local March Board of Review. Check your annual Assessment Change Notice for specific dates and instructions on how to schedule an appointment.
2. Michigan Tax Tribunal: If you are dissatisfied with the local board’s decision, you may appeal to the Michigan Tax Tribunal. Note that for valuation appeals, you must have first protested to the local March Board of Review to preserve your right to appeal to the Tribunal.

Documentation such as recent appraisals, sales data of comparable homes, or photos of property damage is essential to support your appeal.