Reference data as of August 2026. Rates, thresholds, and agency names change — verify anything time-sensitive against the current authority before relying on it. We name agencies but do not link to third-party sites.
- Sales tax administered by
- Connecticut Department of Revenue Services
- Statewide base rate
- 6.35% — local rates stack on top and are generally sourced to the delivery address.
- Economic nexus (remote sellers)
- $100,000 in sales AND 200 transactions
- Filing cadence
- Monthly, quarterly, or annually by liability
- Employer / payroll registration
- Connecticut Department of Labor
- Entity registration
- Connecticut Secretary of the State
- What trips people up
- One of the few states requiring BOTH thresholds to be met, not either — so high-value, low-volume sellers often are not required to register.
How we handle Connecticut in your books
We track your Connecticut taxable sales against the $100,000 in sales and 200 transactions threshold, keep the liability account reconciled to what you actually collected, and prepare and file the return on your assigned cadence. When collected tax does not tie to the return, that gap is a real liability — we find it during the monthly close rather than at year-end.
Either way, the goal is the same — clean, reconciled books your CPA can work from. See how sales tax filing support works or browse everything for Connecticut.
White Glove Accounting is a bookkeeping firm — not a licensed CPA firm, public accountancy firm, or registered tax preparer. We keep your books clean so your CPA or tax preparer can do their job. Filing deadlines, penalties, nexus determinations, and the acceptance of any return or record are determined solely by the applicable taxing authorities and by your own licensed professionals. Requirements change and vary by jurisdiction; outcomes, timelines, and savings are not guaranteed and will differ by client.
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