Meet Connecticut 2024 W-2 and CT-W3 Filing Requirements
Learn about Connecticut's form W-2 and CT-W3 filing rules, deadlines, and easily e-file your W-2 forms quickly and accurately.
As low as $0.99 per W-2 state filing form
Key Connecticut W-2 Form Information
| State Tax | Form | Filing Requirement | Filing Method |
|---|---|---|---|
| Yes, Wages are taxable | Form W-2 Wage and Tax Statement | Mandatory | Electronic /Paper We recommend electronic filing. |
| Form CT-W3 Connecticut Annual Reconciliation of Withholding | Mandatory | Electronic |
Who Needs to File W-2 Forms in Connecticut?
Employers in Connecticut must file W-2 forms for all employees who received Connecticut wages in the prior calendar year, even if no Connecticut income tax was withheld. This requirement ensures accurate reporting of income and withholding for each employee. Preparing and submitting these forms timely to comply with Connecticut's filing regulations is essential.


What Must Be Filed?
- Form W-2: Wage and Tax Statement for each employee
- Form CT‑W3: Annual Reconciliation of Withholding for Connecticut
Important W-2 Form Fields for Connecticut Filing

Ensure the following key fields on the W-2 form are correctly filled:
Employer’s state ID number
Enter the state and employer's state ID number in Box 15. This is required if Connecticut income tax is withheld from the employee’s wages.
State wages, tips, etc.
Enter the total wages, tips, or other compensation in Box 16. This amount should reflect what is subject to Connecticut income tax.
State income tax
Enter the amount of Connecticut state income tax withheld from the employee’s wages in Box 17.
TaxZerone makes Connecticut state filing of W-2 forms quick and easy. Our platform ensures you complete your forms accurately in just a few simple steps.
File Connecticut W-2 FormState Filing Methods for Connecticut W-2 Forms


Electronic Filing
Connecticut mandates that employers file W-2 forms electronically when submitting 25 or more. TaxZerone simplifies this process by supporting electronic filing.
Enter or upload your employee’s data, review everything, and hit submit. After transmission, we’ll manage the details.

Paper Filing
Employers with 24 or fewer W-2 forms may choose to file using paper forms to the Connecticut Department of Revenue Services.
Mailing Address:
Department of Revenue Services,
State of Connecticut,
PO Box 2930,
Hartford, CT 06104-2930.
Recommendation: While paper filing is an option, e-filing with TaxZerone is preferred for faster processing, greater accuracy, and user-friendly experience.
Connecticut Form CT-W3: W-2 Reconciliation
Employers must file Form CT-W3 along with W-2 forms to reconcile Connecticut state income tax withheld. This form is essential for reporting the total taxes withheld throughout the year, ensuring compliance with state tax regulations. By accurately filing Form CT-W3, employers verify that all withholding amounts match the W-2 filings submitted.


W-2c Corrections for Connecticut Filings
To correct errors on previously submitted W-2 forms in Connecticut, employers should file Form W-2c. This form is used to correct any mistakes in previously reported wages, taxes, or employee information. It should be submitted to the Connecticut Department of Revenue Services (DRS) to ensure compliance with state reporting requirements. Filing a W-2c helps maintain accurate records and avoid penalties.
State filing Deadline for Connecticut W-2 Forms
- Form W-2 (Wage and Tax Statement)
- Form CT-W3 (Reconciliation Form)

Why Choose TaxZerone for Connecticut W-2 Filing?
When it comes to e-filing W-2 forms, TaxZerone stands out as your go-to solution. Our platform is designed to make filing easy, accurate, and timely. Experience the following benefits:

Quick & Easy
Complete your W-2 filings in just three simple steps, taking less than five minutes!

Affordable Pricing
Each form costs only $0.99 for w2 state filings with absolutely no hidden fees.

Bulk Upload Feature
Save valuable time by uploading multiple forms in one go.

Dedicated Support Team
Have questions? Our expert team is available to help you navigate any filing challenges.
Simplify your Connecticut W-2 filing!
E-file your Connecticut state W-2s with TaxZerone, and we’ll handle the CT-W3 reconciliation. Start today for just $0.99 per W-2 form.
Frequently Asked Questions
1. Does Connecticut require W-2 filing?
2. Does Connecticut have any additional requirements when filing W-2 forms?
3. What is Form CT-W3?
4. What is Form CT-W3 HHE?
Form CT-W3 HHE is an annual reconciliation form used by employers in Connecticut to report wages and taxes withheld specifically for employees working in Household Employment.











