Connecticut Sales Tax License Registration

Apr 21, 2026

If your business has recently started operating in Connecticut, you may need to register for sales tax with the state's Department of Revenue Services. Sales tax registration is required for businesses that sell tangible personal property or taxable services in Connecticut.

How to get a Connecticut Sales Tax License

There is one sales tax setup task you may need to complete in Connecticut to get your sales tax licence. You can follow the guide below to help you get registered directly with the Connecticut agencies or use Mosey to do it.

Use Mosey to register for sales tax in Connecticut.

Connecticut Sales Tax Filing Requirements & Deadlines

There is one sales tax filing requirement & deadline you may need to complete in Connecticut. You can follow the guide below or use Mosey to do it.

Connecticut Sales Tax Setup for PLLC, Professional Corporation, LLP, LLC, Corporation

Every retailer engaged in business in Connecticut and making non-exempt sales of services or of tangible personal property for storage, acceptance, consumption, or any other use in Connecticut, must collect tax from the purchaser. The statewide Connecticut sales tax rate is 6.35%. There are specialty tax rates imposed on certain goods and services, including the sale of computer and data processing services, which is taxed at 1%. Out-of-state entities with at least 200 transactions or $100,000 in Connecticut sales during the most recent 12-month period ending on September 30, have a sales tax nexus as a remote seller.

  1. Add a Sales Tax Account

    Log in to your myconneCT account to add a sales tax account. Your Sales Tax Registration Number is generally a 10 or 11 digit number ending with 001.

Connecticut Sales Tax Reporting for PLLC, Professional Corporation, LLP, LLC, Corporation

Connecticut has only one statewide sales tax; there are no additional sales taxes imposed by local jurisdictions. Your filing frequency depends on your sales liability of the prior 12-month period ending June 30: if you owed $1,000 or less, you are an annual filer. If you owed $1,001 to $4,000, you are a quarterly filer. Businesses with larger tax liability are monthly filers and may be subjected to additional payment and filing requirements.

  1. File and Pay Sales Tax

    Log in to your myconneCT account to file and pay sales tax online.

Connecticut's Sales Tax Registration & Reporting Agencies

Review your compliance risks, free.

More from the blog

Learn how to keep your business compliant in all 50 states across payroll, HR, Secretary of State, and tax.

California's Mileage Reimbursement: The Employer's Guide

Mileage reimbursement is a core component of compliance for California employers whose workers use personal vehicles for business purposes. Understanding the legal requirements, IRS guidelines, and best practices can ensure that employees are fairly compensated for their work-related travel. This guide will walk you through the process of mileage reimbursement in California and how Mosey can elevate corporate compliance. What Is Mileage Reimbursement? Mileage reimbursement compensates employees for the costs of using their personal vehicles for business purposes. These costs typically include gas, maintenance, depreciation, and insurance.

Kaitlin Edwards | Feb 4, 2025

What Are Articles of Incorporation? What To Know

Articles of incorporation are a legal document you file with the secretary of state to officially form a corporation. When you decide to incorporate your business, completing and submitting this document is a mandatory step. It establishes your business as a legal entity with certain rights and responsibilities. The process of incorporation dates back several centuries and has evolved significantly over time. Originally, corporations were established through specific legislative acts. However, the modern process has become more streamlined, making it accessible to a wider array of businesses, including small businesses and startups.

Alex Kehayias | Dec 11, 2023

What Is Double Taxation and How It Impacts Business

Business taxes are necessary for running a business, but sometimes, the rules can feel stacked against you. Double taxation is a particularly frustrating concept: Your company works hard to turn a profit, pays its share of taxes, and then faces another tax bill on those same earnings. It’s enough to give any business owner, particularly those heading smaller or multi-state operations within the US, a major headache.

Alex Kehayias | Jun 7, 2024

Ready to get started?

Schedule a free consultation to see how Mosey transforms business compliance.