Top Accountant in Wallingford

Connecticut Sales & Use Tax

Registrations, filing cadence, nexus awareness, and practical steps for accurate returns.

What to know

  • Nexus & registration: know when you must register and which tax types apply.
  • Filing cadence: monthly/quarterly/annual—set reminders and keep a checklist.
  • Use tax: report taxable purchases where sales tax was not charged.
  • Documentation: retain workpapers, confirmations, and exemption certificates.

Common topics

  • Online sales and marketplace facilitators
  • Service vs. tangible property taxability
  • Resale and exempt sales documentation
  • Notice responses and amended returns

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Simple filing checklist

  1. Export sales reports and verify taxability codes
  2. Reconcile gross receipts to bank/books
  3. Calculate deductions/exemptions with support
  4. Compute tax due and prepare workpapers
  5. File return, pay, and save confirmations