Connecticut W-2 Reporting Requirements

Does Connecticut mandate W2 filing?

Yes. The Connecticut Department of Revenue Services requires W2 filing even if there is no state withholding.

Does Connecticut have any additional requirements when filing W2 Forms?

Yes. You need to file Form CT-W3 as part of your W2 filing.

What is Form CT-W3 and what information do I need to report on it?

Form CT-W3 is an Annual Reconciliation used to report the wages, and taxes withheld from the employees’ paychecks.

What are the due dates to file Form CT-W3 and Form W2 online to the state of Connecticut?

The filing due date for both the Form W-2 & CT-W3 is the last day of January.

What are the requirements to file Form W2 online?

The state of Connecticut accepts both e-filing and paper filing. However, if you are submitting 25 or more W2s, it is recommended that you e-file. Filing Form W2 online is mandatory if you paid your taxes electronically during the year.

Does TaxBandits support W2 filing and Connecticut State Form CT-W3?

Yes, TaxBandits supports filing W2 Forms at both the federal and state levels, as well as Form CT-W3.

What is penalty for filing Connecticut W2s and CT-W3s late?

A penalty of $50 will be imposed for each form that is not filed on time, in addition to the standard penalties for filing a federal W2 late. Learn more about the Form W-2 penalties in detail by visiting

Where do I mail the W2 Form for Connecticut?

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Supported Federal Forms

  • 1099 Forms
  • W-2 Forms
  • 94x Forms
  • Extension Forms

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Form W-2, 1099, 94x Filing is due by January 31, 2019.

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