America's Property Tax Advisor

POER's Boston office represents clients' properties in Connecticut.


This information is deemed to be a reliable calendar of specific property tax event dates that are updated quarterly and throughout the year as changes are known. However, it is not guaranteed and some dates and/or jurisdictions are not listed.


For POER's local office contact information for this state, visit our locations page.

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Assessment Ratio: 70%
Revaluation Cycle : Every 5 years
Assessment Year: 10/01 – 09/30
Fiscal Tax Year: 070/1 – 06/30
Valuation Authority: City or Town
Collection Authority: City or Town
Level One Appeal Name: Board of Assessment Appeals
Consultant Certification/Licensing: Not Required
Real Estate Taxable? Yes
RE Rendition Required: If requested
Non-Disclosure State? No
Personal Property Taxable? Yes
PP Rendition Required: Yes
Inventory Taxable? No

There are over 160 individual taxing jurisdictions in Connecticut. Dates may vary throughout the state by jurisdiction.
For further verification, please contact us.


Assessment Date: Oct 1 Assessment date for next fiscal year
Tax Returns Due: Jun 1 Income & Expense returns due if requested by Assessor; 10% penalty for failure to file timely
Appeal Deadline: Feb 20 Town can ask for extension until Mar 20
Tax Bills Issued: Jul 1 Beginning of fiscal year
Tax Bills Due: Aug 1
Feb 1
1st half installment
2nd half installment
Value Notices Issued: Oct - Jan Assessment increase notices mailed by February 1


Assessment Date: Oct 1  
Tax Returns Due: Nov 1 Inventory exempt; 25% penalty for late filing or failure to file
Tax Bills Issued: Jul  
Tax Bills Due: Aug 1
Feb 1
1st half installment
2nd half installment
Value Notices Issued: Jan Assessment increase notices mailed by February 1