2026 Property Tax Due Dates
County-specificSeptember 14
Summer Tax
February 14
Winter Tax
Oakland County Treasurer
Treasurer
Robert Wittenberg
Phone
(248) 858-0611Mailing Address
1200 North Telegraph Road, Dept 479, Building 12 East
Pontiac, MI 48341
Office Hours
How to Pay
Online
true
By Mail
true — 1200 North Telegraph Road, Dept 479, Building 12 East, Pontiac MI 48341
In Person
true — 1200 N Telegraph Rd, Pontiac MI 48341, Mon-Fri 8:30am - 4:30pm
About Property Taxes in Michigan
Michigan has one of the most distinctive property tax structures in the country — most homeowners receive two separate tax bills each year: a summer bill and a winter bill. The summer bill (covering school operating taxes and some local taxes) is issued July 1; the winter bill (covering county, township, and remaining local taxes) is issued December 1. Michigan property assessments are governed by Proposal A (1994), which caps the annual increase in "taxable value" at 5% or the rate of inflation (CPI), whichever is lower. This means long-term homeowners are often taxed on a value well below current market value. However, when a property sells, the taxable value "uncaps" and resets to 50% of the new market value — sometimes causing a significant tax increase for new buyers.
Payment & Assessment
Michigan property tax bills follow a split schedule: Summer tax bill: Issued July 1, due by September 14 without penalty. After September 14, a 1% monthly penalty applies for the first two months, then 1/2% per month thereafter. Unpaid summer taxes are turned over to the county treasurer on March 1. Winter tax bill: Issued December 1, due by February 14 without penalty. After February 14, similar penalties apply. Unpaid winter taxes are also turned over to the county treasurer. Some townships and cities collect only summer or only winter taxes — check with your local treasurer for your specific billing schedule. After taxes are turned over to the county treasurer (March 1 for prior-year summer taxes), additional fees apply and the county begins the forfeiture and foreclosure process if taxes remain unpaid for three years. Most counties and municipalities offer online payment. Contact your local township or city treasurer for payment options.
Statewide framework for Michigan. Your county's specific rates and deadlines are shown above.
Other Counties in Michigan
About Oakland County
Oakland County is a county in the U.S. state of Michigan. It is a principal county of the Detroit metropolitan area, containing the bulk of Detroit's northern suburbs. Its county seat is Pontiac, and its largest city is Troy. As of the 2020 census, its population was 1,274,395, making it the second-most populous county in Michigan, and the most populous county in the United States without a city of 100,000 residents.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.