TaxBandits supports state-only filing for W-2 forms.
Connecticut Form W-2 & CT-W3 / CT-W3 HHE Filing Requirements
Meet your Connecticut W-2 filing requirements confidently with TaxBandits!
Simplify Your Connecticut W-2 Filing with TaxBandits
- Complete Connecticut tax filing compliance
- We support state-only filing
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Includes Reconciliation Form CT-W3 / CT-W3 HHE
for Free - Free retransmissions and corrections
E-file at just $0.70/form
Connecticut Filing Requirements for W-2
The State of Connecticut mandates W-2 filing, even if no state tax is withheld.
| Condition | Filing Method | Additional Forms | Due Date |
|---|---|---|---|
| If Connecticut Tax Was Withheld | Direct State Filing | Form CT-W3 / CT-W3 HHE | February 02, 2026 |
| If NO Connecticut Tax Was Withheld | Direct State Filing | Not Required | February 02, 2026 |
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:
- 10 digits and a hyphen followed by 3 digits (For example: 9999999999-999)
- 13 digits (For example: 9999999999999)
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
TaxBandits supports the filing of the Reconciliation Form CT-W3 / CT-W3 HHE along with your Form W-2.
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 (CT-W3 / CT-W3 HHE)
We provide Form CT-W3 / CT-W3 HHE 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 / CT-W3 HHE)
Provide the necessary withholding information to complete Form CT-W3 / CT-W3 HHE.
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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 / CT-W3 HHE)
Complete Form CT-W3 / CT-W3 HHE 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 only if there is a 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?
A penalty of $5 per form (up to a total of $2,000 per calendar year) is imposed for each w2 is not filed on time with the state of Connecticut. Learn more about Form W-2 penalties.
Is there an extension available to file W-2 forms with the state of Connecticut?
Connecticut allows additional time to file W-2 forms by submitting Form CT-8809 (Request for Extension of Time to File Information Returns) to the state. This form must be downloaded and mailed to the address mentioned below.
Department of Revenue Services
State of Connecticut
PO Box 2930
Hartford, CT 06104-2930
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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