Connecticut Form W-2 & CT-W3 / CT-W3 HHE Filing Requirements for 2024
Meet your Connecticut W-2 filing requirements confidently with TaxBandits!
Lowest Pricing in the Industry - E-file at just $0.70/form
Simplify Your Connecticut W-2 Filing
with TaxBandits!
- E-file W-2 with both federal and state
- We also support state-only filing
- Includes reconciliation Form CT-W3 / CT-W3 HHE for free
- Deliver employee copies by mail or online
- Free retransmissions and corrections

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Default State
- Filing Criteria
- Information Required
- How to File
- FAQs
Connecticut W-2 Filing Criteria for 2024
The State of Connecticut requires W-2 filing, even if no state tax is withheld.
Filing Criteria | Form W-2 |
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Criteria 1 If there is Connecticut state tax withheld |
Filing Method: Direct State Filing Additional Form: Form CT-W3 / CT-W3 HHE Deadline: January 31, 2025 Pricing: W-2 State Filing - $0.70/form |
Criteria 2 If there is no Connecticut State Tax Withholding |
Filing Method: Direct State Filing Additional Form: Not Required Deadline: January 31, 2025 Pricing: W-2 State Filing - $0.70/form |
Criteria | Filing Requirement | Additional Requirement | Due Date |
---|---|---|---|
If there is any Connecticut state tax withheld |
You must file a W-2 directly with E-file with TaxBandits |
Form CT-W3 / CT-W3 HHE |
January 31, 2025 |
If there is no Connecticut State Tax Withholding |
You must file a W-2 directly with E-file with TaxBandits |
Form CT-W3 / CT-W3 HHE |
January 31, 2025 |
Ready to start filing W-2s with Connecticut?
Information Required to File W-2 Forms with Connecticut
Discover the key information needed to file Form W2 with the State of Connecticut.

1. Employer’s state ID number
The employer's state identification number refers to the Connecticut Withholding Tax Account Number.
Connecticut State ID Format:
- 9 digits followed by a hyphen and 3 digits (e.g., 999999999-999).
- 12 digits (e.g., 999999999999)
2. Connecticut state/local wages
The total amount of taxable wages, tips, that is subject to Connecticut state or locality income tax.
3. Connecticut state/local tax withheld
The total amount of state or locality income taxes withheld from the employee’s wages.
If you’ve withheld any Connecticut taxes, you must file Reconciliation Form CT-W3 / CT-W3 HHE.
E-file W-2s to the State of Connecticut in minutes with TaxBandits!
Connecticut Annual Reconciliation Form CT-W3 / CT-W3 HHE
Form CT-W3 / CT-W3 HHE is an Annual Reconciliation used to report the total income taxes withheld from employees and taxes remitted to the state. It's also used to claim an overpayment refund or pay if the taxes are underpaid.
Information Reported on CT-W3 / CT-W3 HHE:
- Connecticut tax withheld from wages
- Total Connecticut wages reported
- Number of W-2s submitted
- Connecticut income tax withheld from wages for each quarter

E-file W-2 with Connecticut state in minutes using TaxBandits!
TaxBandits – Simplifying Connecticut State W-2 Compliance
TaxBandits supports the e-filing of W-2 forms directly with the Connecticut Department of Revenue, ensuring compliance with state regulations.
Supports State-Only Filing
With TaxBandits, you can file
W-2 forms directly with your state, even if you don’t file your federal W-2 with us.
Free Reconciliation Form (CT-W3)
We provide Form CT-W3 at no additional cost, making year-end reconciliation simple and stress-free.
Supports W-2 State Corrections
Easily correct errors on your Connecticut W-2 with TaxBandits, download the corrected form, and mail it directly to the state.
Free Resubmissions
If your W-2 forms are rejected by the Connecticut Department of Revenue, you can correct errors and resubmit them for free.
Create a TaxBandits account to start filing your Connecticut W-2 returns!
How Is Form W-2 Filed with the State of Connecticut?
Create your account and follow these steps to easily e-file your W-2s with the state of Connecticut!

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Step 1: Choose Form W-2
Select the type of W-2 form you want to file.
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Step 2: Enter Form W-2 details
Complete the form using manual entry or other bulk import options. Ensure you complete the state-specific fields.
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Step 3:
Complete Reconciliation Form (CT-W3)
Provide the necessary withholding information to complete Form CT-W3.
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Step 4: Choose Distribution Options
Select the form distribution option — postal mailing, online access, both, or print and mail yourself.
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Step 5: Review and Transmit
Review your form and transmit it to the IRS and state agencies.

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Step 1: Choose Form W-2 State-Only Filing
Select Form W-2 - State Only filing from the Dashboard.
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Step 2: Enter Form W-2 and State details
Complete Form W-2 and the respective state information in the appropriate fields.
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Step 3: Complete Reconciliation Form (CT-W3)
Complete Form CT-W3 (Connecticut Annual Reconciliation of Withholding) with the necessary information.
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Step 4: Choose Distribution Options
Choose the form distribution options – postal mailing, online access, or printing and mailing yourself
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Step 5: Review and Transmit to the State
Review your form and transmit it to the state of Connecticut.
Start e-filing W-2 Forms with Connecticut today—TaxBandits makes it quick and easy!
Frequently Asked Questions
Does Connecticut require W-2 filing?
Yes, the state of Connecticut requires W-2 forms to be filed, even if no state tax is withheld.

TaxBandits enables you to file W-2 forms directly with the state of Connecticut, even if you filed your federal W-2 elsewhere. E-file now
Does Connecticut have any additional requirements when you file W-2 forms?
Yes. The state of Connecticut requires additional forms to file along with Form W-2. Connecticut has an additional Form CT-W3 / CT-W3 HHE (Annual Reconciliation) to be sent even if there is no state withholding.
What is Form CT-W3 and CT-W3 HHE?
- Form CT-W3 is an Annual Reconciliation form used to report the wages, and taxes withheld from the employees paychecks
- Form CT-W3 HHE is an Annual Reconciliation form used to report the wages, and taxes withheld from the Household Employees.
What is the due date to file W2 with Connecticut?
The due date to file Form W-2 and Form CT-W3 / CT-W3 HHE with Connecticut is January 31.
If the due date falls on a weekend or federal holiday, the next business day is the deadline
What are the requirements to file W2 electronically with Connecticut?
The State of Connecticut mandates filing electronically if you are submitting 25 or more W2s. However, if you have paid your taxes electronically during the year, you are required to file W2 electronically.
What are the penalties for not filing or filing W-2 late with Connecticut?
The penalty for late filing is $50 and $5 will be imposed for each w2 is not filed on time with the state of Connecticut. Learn more about Form W-2 penalties.
Where do I mail Connecticut W2 forms?
Mail your Form W2s along with the CT-W3 / CT-W3 HHE to the following address.

Department of Revenue Services,
State of Connecticut,
PO Box 2930,
Hartford, CT 06104-2930
If you made errors on W-2 forms filed with the State of Connecticut, you can correct them by downloading the corrected form and mailing it to the address provided above.
Get started with TaxBandits today and stay compliant with the State of Connecticut! Start Filing Now

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Connecticut State Filing
How Is Form W-2 Filed with Taxbandits

Select Form W-2
Start by selecting Form W-2 from your dashboard. With TaxBandits, you can file this form for both the current and previous tax years.

Required information
Fill out the required W-2 information and the respective state information in the appropriate fields.

Review Federal Information
Review your Federal filing information and click "Continue to State Filing" to proceed further.

Review State Filing Information
Review your state filing information and click "Continue to form distribution" to proceed further.

Choose Distribution Options
Select how you'd like to distribute recipient copies: via mail, online access, both or Print on yourself.

Review Form W-2 Information
Review the information and make any necessary changes if needed.

Transmit the Form to the IRS/State
After reviewing, transmit the completed Form W-2 to the IRS and state.
How Is Form W-2 Filed with the State of Connecticut?

Start Your Filing
Start a new form from the TaxBandits dashboard and select the W-2 state-only filing option.

Complete the W-2 Form
Enter the W-2 wage details for each employee along with the required state information. Make sure to complete all mandatory fields before continuing.

Complete Reconciliation Form
The state of Connecticut requires you to complete Form CT-W3—the state’s reconciliation of income tax withheld. Complete the form and proceed further.

Choose How to Distribute Employee Copies
Select how you’d like to deliver W-2 copies to your employees. You can opt for postal delivery, online access, both, or choose to handle printing and delivery yourself.

Review your Form Summary
Take a moment to review the summary of all the information you’ve entered. If anything needs correction, you can go back and make changes easily.

Transmit to the State
Once reviewed, proceed to transmit your completed W-2 forms and reconciliation to the State of Connecticut.