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Connecticut Income Tax Withholding Requirements

Filed under Payroll Taxes. Fact checked on February 8, 2013.

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Employers in Connecticut must conform with these state rules relating to income tax withholding and administration.

General Withholding Requirement: Connecticut income tax must be withheld from wages paid to resident and nonresident employees for services performed either within or without the state. However, if a nonresident employee files the appropriate exemption certificate (Form CT-W4NA, Employee's Withholding or Exemption Certificate — Nonresident Apportionment), an employer need only withhold income tax from wages paid services performed in the state.

Employee Withholding Exemption Forms: Connecticut Form CT-W4 must be completed by each employee, to determine the appropriate level of state income tax to withhold from earnings. Of course, Federal Form W-4 also must be completed by each employee, to determine the appropriate level of federal income tax to withhold from earnings.

Reciprocal Agreements: None.

Administration:

Department of Revenue Services
25 Sigourney Street
Hartford, Connecticut 06106
Telephone: 860-297-5962

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