Connecticut Payroll Tax Registration

Oct 28, 2025

If you are an employer in Connecticut who has recently hired an employee, you will need to register for payroll tax with the Connecticut Department of Revenue Services. This registration process ensures that you are in compliance with state tax laws and are able to properly withhold and remit taxes on behalf of your employees.

Zero payroll penalties, zero distractions.

How Connecticut Payroll Registration Works

There are 4 payroll tax setup tasks you may need to complete in Connecticut to get your new hire on payroll for the first time. You can follow the guide below to help you get registered directly with the Connecticut agencies or use Mosey to do it.

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

If you have Connecticut employees, you must register for a withholding tax account with the Connecticut Department of Revenue Services. Wages of a nonresident are subject to Connecticut withholding tax if the wages are paid for services performed in Connecticut.

  1. Register for Withholding Tax

    Visit myconneCT, navigate to the "Business Registration" box, and then click on "New Business/Need a CT Registration Number?" to start the Withholding Tax registration process. You will receive a Tax Registration Number and tax deposit schedule in about 10 business days. You will also create a myconneCT account during the registration process.

Connecticut Paid Family and Medical Leave Setup for PLLC, Professional Corporation, LLP, LLC, Corporation

All employers in Connecticut are covered by the Connecticut Paid Family and Medical Leave Act (known as CT Paid Leave). Employers are required to make payroll deductions (capped at 0.5%), file and pay these contributions to the CT Paid Leave Authority quarterly, and communicate with employees and the CT Paid Leave Authority about leave requests. You must also provide Connecticut employees a written notice informing them of Paid Family Medical Leave at the time of hiring, and annually thereafter.

  1. Create a CT.gov Account

    If you don't have a CT.gov account, create one to be able to register your business for CT Paid Leave.

  2. Register with CT Paid Leave Authority

    Register with the CT Paid Leave Authority by pressing the "Registration" button and filling out the online form, once you are logged in with your CT.gov account.

  3. Instruct Your Payroll Provider to Make CT Paid Leave Contributions

    Instruct your payroll provider to file and pay CT Paid Leave contributions on your behalf.

  4. Provide Notice to Employees

    Provide the sample notice in writing to all existing Connecticut employees and to all new hires at the time of hire.

Connecticut Unemployment Insurance Setup for PLLC, Professional Corporation, LLP, LLC, Corporation

Employers in Connecticut are required to register with the Connecticut Department of Labor for an Unemployment Insurance tax account when they have paid wage of $1,500 or more in a calendar quarter, or had one or more employees in 20 different weeks. The Connecticut taxable wage base is $15,000. You cannot register prior to the employee's start date as the system does not accept future hire dates.

  1. Register for an Unemployment Insurance Account

    Visit ReEmployCT to register for an account. If you have already registered with the Connecticut Department of Labor, click "Create an Account" under "Registered Employers." Otherwise, click "Register" under "New Employer Registration."

  2. Configure Payroll with Unemployment Insurance Information

    Add your Employer Account Number and Unemployment Insurance contribution rate to your payroll provider.

Connecticut Unemployment Insurance Setup for Professional Corporation, Corporation

Employers must register with the Connecticut Department of Labor for an Unemployment Insurance tax account.

  1. Register for an Unemployment Insurance Account

    Visit ReEmployCT to register for an account. If you have already registered with the Connecticut Department of Labor, click "Create an Account" under "Registered Employers." Otherwise, click "Register" under "New Employer Registration."

  2. Configure Payroll with Unemployment Insurance Information

    Add your Employer Account Number and Unemployment Insurance contribution rate (or reimbursable status) to your payroll provider.

Connecticut's Payroll Registration Agencies

More from the blog

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

Telehealth Compliance Risks for HR

Scaling telehealth across state lines should open new markets, speed up patient access, and grow revenue. But each new hire in a new state adds another layer of HR compliance risk. Miss one registration or delay a tax account, and providers sit idle while revenue stalls. But there’s good news in all of this. Most telehealth compliance risks are both predictable and preventable if you plan for them upfront. From foreign qualification and payroll tax accounts to state-specific handbooks, the right systems keep everything on track. While HIPAA and clinical regulations get most of the attention, workforce compliance can stop your telehealth practice just as fast. Below are 10 of the most common HR compliance risks for multi-state telehealth companies and, more importantly, how to avoid them.

Paul Boynton | Jul 30, 2025

SHIELD Act: Compliance Guide for New York Employers

Business owners face an ever-growing challenge to protect sensitive private information from data breaches and cyber threats. Enter the New York SHIELD Act, a law designed to bolster data protection for New York residents. But what exactly does the NY SHIELD Act entail? And how can companies get and stay compliant? Today, we’re breaking down the SHIELD Act essentials so you can better safeguard your business and, just as importantly, maintain consumer trust.

Paul Boynton | Mar 14, 2025

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

Ready to get started?

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