All 8 Connecticut counties and county equivalents. 0 have been checked against the county's own schedule; the rest follow the state schedule below.
| Instalment | Due | Notes |
|---|---|---|
| Second installment | January 2, 2027 | Second installment in towns that bill semiannually. |
| First installment | July 2, 2027 | First installment under the July 1 statutory default; towns may bill annually, semiannually or quarterly. |
Connecticut property tax is billed and collected county by county, so the collector — not the state — issues the bill. Towns choose single, semiannual or quarterly billing and set their own dates, though most use July 1 and January 1.
CountyTaxDates is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.