St. Clair County Property Tax Records

St. Clair County property tax records are maintained by the county Equalization Department in Port Huron. The county operates its own property search portal and GIS mapping system, giving property owners and researchers online access to parcel data, assessed values, and ownership information. This page explains how to find and use St. Clair County property tax records, covers the key offices involved, and walks through the assessment and appeal process for property in this southeast Michigan county.

How to Search St. Clair County Property Tax Records

St. Clair County maintains its own property search portal through the Equalization Department website. You can look up parcels by owner name, address, or parcel ID. The portal displays assessment records, ownership information, and property data for all jurisdictions in the county. Access the search tool at stclaircounty.org/departments/equalization/property_search. No account is needed for basic lookups, and the system covers both township and city parcels throughout the county.

The county also provides GIS mapping tools at stclaircounty.org/departments/gis. The GIS system shows parcel boundaries, aerial photos, and location data that can help verify property addresses and confirm which township or city a parcel belongs to. Using both tools together gives a complete picture of any property in St. Clair County.

For in-person assistance, the Equalization Department is at 200 Grand River Ave., Port Huron, MI 48060. Director Michael J. McCarty and his staff can help with parcel lookups, assessment questions, and exemption information. Call 810-989-6920 before visiting to confirm hours.

St. Clair County Equalization Department

Director Michael J. McCarty oversees the Equalization Department for St. Clair County. Under MCL 211.1, all property in Michigan must be assessed at 50% of true cash value. The Equalization Department reviews assessment rolls from each township and city in the county, checks them against recent sales data, and applies equalization adjustments where needed. This annual process is how Michigan ensures property taxes are based on consistent, market-driven values across all jurisdictions.

The department handles special assessment rolls, exemption reviews, and maintains the county property database that feeds the online search portal. It also oversees the county's GIS system, which links parcel data to mapping and aerial imagery. If you have a question about how your property was valued or which programs you might qualify for, contact the Equalization office at 200 Grand River Ave., Port Huron.

St. Clair County Register of Deeds

Register Karen K. DeMeester records all real estate instruments in St. Clair County. This includes deeds, mortgages, liens, land contracts, easements, and related documents. Recorded instruments establish ownership history and legal interests for every parcel in the county. The Register of Deeds provides certified copies of recorded documents upon request. The office can also confirm whether a document has been recorded and when.

When property changes hands in St. Clair County, the buyer must file a Property Transfer Affidavit (Form L-4025) with the local assessor within 45 days. This step triggers the taxable value uncapping process required by state law. The Register of Deeds is at 200 Grand River Ave., Port Huron, MI 48060. Phone: 810-989-6960. The county website at stclaircounty.org/departments/register_of_deeds provides more information on recording requirements and search tools.

Note: Michigan's standard recording fee is $30 per document. Copies cost $1 per page, and certified copies are $5 each.

Property Tax Assessment in St. Clair County

St. Clair County property is assessed as of December 31 each year under MCL 211.30. Township and city assessors set values for every parcel, and the county Equalization Department reviews those values against actual sales to verify they meet the 50% standard. Assessment change notices arrive in February. Property owners who see a significant increase should review the notice and, if they disagree, contact the township assessor to start the appeal process.

Michigan caps taxable value increases at the rate of inflation or 5%, whichever is less. This cap protects existing owners from large tax jumps year to year. When a property is sold, the cap lifts and taxable value resets to equal the assessed value in the next tax year. Buyers in St. Clair County should plan for this reset by using the Michigan Property Tax Estimator to calculate expected post-purchase taxes.

St. Clair County sits along the St. Clair River and borders Ontario, Canada. Waterfront property and parcels with river or lake access often carry higher market values, which can translate to higher assessed values. Township assessors apply the same 50% standard to all parcels, including waterfront ones, based on what similar properties have sold for in the area.

Property Tax Exemptions in St. Clair County

St. Clair County homeowners can reduce their property taxes by claiming the Principal Residence Exemption (PRE). Under MCL 211.7u, owners who use their property as their primary home can remove 18 mills of school operating tax from their bill. File Form 2368 with the local township or city assessor by June 1. The exemption stays active each year you continue to live there as your main residence.

Agricultural land in St. Clair County may qualify for the Agricultural Exemption under MCL 211.7v. Qualifying farm operations can see significant reductions in their tax burden. Contact the township assessor to confirm what documentation is needed for the application.

The Poverty Exemption is also available for qualifying low-income homeowners. File Form 5737 and Form 4988 with your township assessor before the March Board of Review deadline. Disabled veterans and surviving spouses may qualify for additional exemptions under state law. The Michigan Treasury website has a full list of available exemptions and eligibility criteria.

Appealing Your St. Clair County Assessment

Property owners in St. Clair County who believe their property is overassessed can appeal. The first step is the March Board of Review at the local township or city level. You must file a written protest or appear in person before the Board closes for the year. Come prepared with evidence. A licensed appraisal, documented recent sales of comparable nearby properties, or photos documenting property defects can all support a value reduction. The Board has authority to adjust your assessed value if the evidence justifies it.

If the Board of Review does not resolve your concern, the next appeal level is the Michigan Tax Tribunal. The MTT handles property tax appeals from owners across the state. Residential property appeals must be filed by July 31. Commercial property appeals are due by May 31. The MTT's phone number is 517-335-9760. Your rights during this process are protected by the Property Taxpayer's Bill of Rights, MCL 205.735.

St. Clair County Property Tax Payments

Treasurer Kelly M. Roberts manages delinquent property tax collection for St. Clair County. Local townships collect current-year taxes during the summer and winter billing cycles. Summer taxes are typically due in September and winter taxes in February, though exact dates vary by township. Contact your local township treasurer for the deadlines that apply to your parcel.

When taxes go delinquent, they transfer to the County Treasurer the following March. At that point, interest and administrative fees begin to accrue. The Treasurer's office handles payment plans and oversees the forfeiture and foreclosure timeline. Reach Treasurer Roberts at 810-989-6950. Addressing delinquent taxes early is always less expensive than letting them accrue interest, and it prevents the property from entering the foreclosure pipeline.

Note: St. Clair County follows Michigan's standard delinquent tax law. Unpaid taxes that remain delinquent for three years become eligible for county foreclosure proceedings.

Cities in St. Clair County

St. Clair County includes Port Huron, the county seat, along with cities such as Marine City, Marysville, St. Clair, and Yale. None of these communities meet the population threshold for individual city pages on this site. Property tax records for all areas of St. Clair County are available through the county's online property search portal and the Equalization Department in Port Huron.

Nearby Counties

St. Clair County borders these Michigan counties to the west and south, as well as the Province of Ontario to the east across the St. Clair River. Confirm which county holds a parcel before searching for records.