St. Clair County Property Appraiser & Tax Assessor
Real property appraisal records, parcel search lookup, property tax rates, and assessment protest deadlines for St. Clair County, Michigan.
St. Clair County Assessor's Office Information
St. Clair County Appraisal & Assessment Office, Port Huron, MI 26001
Get Driving Directions ↗Monday - Friday: 8:00 AM - 4:30 PM (Local Time)
Closed on state & federal holidays.
(517) 899-1657
BS&A Online / Equalization Portal
St. Clair County Property Tax Calculator
Estimated using St. Clair County's effective tax rate of 1.41% (Assessment ratio: 50%)
Appealing Your St. Clair County Assessment
Must protest to March Board of Review first; appeal to Michigan Tax Tribunal by July 31.
Under Michigan property tax law, property owners in St. Clair County have the legal right to challenge an assessed valuation that exceeds fair market value, is unequally appraised compared to neighboring properties, or contains clerical errors.
Contact the St. Clair County Assessor's Office to review your property record card, verify square footage, and present recent comparable sales (comps).
If informal review does not resolve the valuation, file a written notice of appeal with the March Board of Review & Michigan Tax Tribunal before the statutory deadline.
Was Your St. Clair County Home Over-Assessed This Year?
Studies show up to 30% to 60% of US residential properties are overvalued by automated municipal algorithms. Protesting your assessment before the statutory deadline can lower your tax bill by an average of $1,100/year.
St. Clair County Homestead Exemptions & Tax Relief
Homeowners in St. Clair County who occupy their home as their permanent primary residence may qualify for property tax reductions under state and local homestead programs:
Principal Residence Exemption (PRE) exempts primary home from local school operating taxes (typically 18 mills). Headlee Amendment caps taxable value growth to 5% or rate of inflation.
Homestead Property Tax Credit up to $1,700 for qualifying low-income seniors. 100% disabled veterans are exempt from all property taxes.
Need Deed, Lien, or Title Records for St. Clair County?
While the Property Appraiser values real estate for taxation, official legal property transfers, warranty deeds, mortgages, and marriage records in St. Clair County are maintained by the County Clerk & Recorder.
Frequently Asked Questions
Where is the St. Clair County Property Appraiser office located?
The official St. Clair County property appraisal and tax assessment office is located at St. Clair County Appraisal & Assessment Office, Port Huron, MI 26001. Operating hours are typically Monday - Friday: 8:00 AM - 4:30 PM (Local Time). You can reach the customer service staff by phone at (517) 899-1657.
What is the property tax rate in St. Clair County, MI?
The average effective property tax rate in St. Clair County is approximately 1.41%. For a home with the median county market value of $248.000, the estimated annual property tax is about $3497 per year.
How do I search for a property or parcel in St. Clair County?
You can look up property record cards, assessed valuations, ownership history, and parcel boundary maps online through the official St. Clair County parcel search portal: https://phtwpmi.gov/assessor/parcel-search.
When is the deadline to appeal my property assessment in St. Clair County?
Property valuation protests and appeals in St. Clair County must be submitted by: Must protest to March Board of Review first; appeal to Michigan Tax Tribunal by July 31. Appeals are formally reviewed and heard by the March Board of Review & Michigan Tax Tribunal.
How does the Homestead Exemption work in St. Clair County?
Principal Residence Exemption (PRE) exempts primary home from local school operating taxes (typically 18 mills). Headlee Amendment caps taxable value growth to 5% or rate of inflation. Additional exemptions are available for senior citizens (65+) and disabled military veterans (Homestead Property Tax Credit up to $1,700 for qualifying low-income seniors. 100% disabled veterans are exempt from all property taxes.).
Adjacent & Neighboring County Appraisers
County Overview
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