Connecticut property tax appeal deadlines and filing windows for commercial real estate. Verify with your local assessor or appeal board for the specific jurisdiction before filing.
Verify before filing. Statutory deadlines change, and many counties operate on their own schedule inside the state framework. Always confirm the current year's window with the assessor or appeal board for the specific jurisdiction before relying on a date.
State-level deadlines plus major sub-jurisdictions where the schedule diverges from the state default. Where a column says "Varies," confirm the date with the local assessor.
| Month | Type | Event | Date | Details |
|---|---|---|---|---|
| January | RP | Value Notices Issued |
Oct-Jan | Assessment increase notices (Notice of Change) mailed by Feb 1 |
| January | BPP | Value Notices Issued |
Jan | Assessment increase notices (Notice of Change) mailed by Feb 1 |
| February | RP | Appeal Deadline |
20-Feb | Appeals must be filed by February 20, for the March hearing or by March 20 if the Assessor or the Board of Assessors has received an extension. |
| November | BPP | Renditions Due |
1-Nov | Inventory Exempt; 25% late file penalty |
RP = Real Property · BPP = Business Personal Property · Both = Applies to both
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