Connecticut Sales Tax Payment and Reporting Rules

Reporting period:

• Generally: Monthly, by last day of the month.
• Other: Quarterly (due the last day of January, April, July and October), if tax for 12-month period ending on preceding September 30 is under $4,000.
• Administration:
  Department of Revenue Services
  25 Sigourney St.
  Hartford, CT 06106-5032
  Phone: 800-382-9463