2027 Property Tax Due Dates
July 1
First installment
January 1
Second installment
Payment Methods
Online, Mail, In-Person
Windham County Treasurer
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Windham County Treasurer
In Person
Visit the Treasurer's office
About Property Taxes in Connecticut
Connecticut property taxes are administered entirely at the town and city level — the state has no counties with governmental functions. Each of Connecticut's 169 municipalities has its own assessor who determines property values and its own mill rate. This means rates and policies vary significantly from town to town. Property is assessed at 70% of fair market value (this percentage is set by state law). Grand Lists (the official assessment rolls) are updated annually and full revaluations are conducted at least every five years. Connecticut consistently ranks among the states with the highest property tax burdens relative to home values.
Payment & Assessment
Payment schedules vary by town. Most Connecticut municipalities bill property taxes semi-annually: First installment: Due July 1 Second installment: Due January 1 Some municipalities bill quarterly. A grace period of 30 days typically applies, making the effective due dates August 1 and February 1 before interest begins. Late interest: 1.5% per month (18% annually) on unpaid balances, with a minimum of $2.00. Most towns offer online payment through their municipal website or a payment portal. Contact your town's tax collector for available payment methods.
Statewide framework for Connecticut. Your county's specific rates and deadlines are shown above.
Other Counties in Connecticut
About Windham County
Windham County is one of the eight counties in the U.S. state of Connecticut, located in its northeastern corner. As of the 2020 census, the population was 116,418, making it the least populous county in Connecticut. It forms the core of the region known as the Quiet Corner. Windham County is included in the Worcester, MA-CT Metropolitan Statistical Area, which is also included in the Boston-Worcester-Providence, MA-RI-NH-CT Combined Statistical Area. The entire county is within the Quinebaug and Shetucket Rivers Valley National Heritage Corridor, as designated by the National Park Service.
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.