NexusCheck
Connecticut economic-nexus threshold
Compiled as of 2026-08-16. This page restates the table row. It is not Connecticut’s determination and not tax advice.
- Dollar threshold
- $100,000
- Transaction test
- and 200 transactions
- Do marketplace sales count toward the individual seller’s threshold?
- Yes
- Includable sales basis
- retail
- Measurement period
- 12_month_ending_sep_30