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Connecticut Withholding Tax Filing

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Pursuant to Connecticut General statute Sec 12-35i 7; any person filing a return and owing tax for a taxable period prior to December 2012, shall be subject to a 25% penalty of the tax owed. This penalty CANNOT be waived.

Forms Instructions:  Select from the following to view or download form instructions:                                              

Additional Help by Form     

Form CT-WH |  Form CT-941  |  Form CT-941X  |  Form CT-W3

Form CT-8109  |  Form CT-945  |  Form CT-1096           

Form CT-WH

Line 2   If filing for multiple payroll dates, enter the combined amount of tax withheld.

Form CT-941, Quarterly Reconciliation of Withholding

Line 1 Refer to Federal Form 941, Line 2, for each quarter.

Line 5 If you disagree with total payments displayed, you may change the total by clicking on the withholding tax payments button, select “no” to agreeing with the payments and enter in the correct amount. Continue to file as usual. Example: You made a payment within the last 48 hours, and it is not be included in the total on Line 5.  You may change to total to reflect those payments by following the directions above.

Form CT-941X

 

The amounts shown on this screen are the figures you reported on the most recent filing for this period. To correct the figures shown below, enter the amounts that should have been reported on the applicable lines.  (For example, if you filed for this period and later amended that return, the figures on the most recent filing will be shown below.)

Form CT-W3

Line(s) 1 through 10 For each employee, enter their demographic information.

Line 11 For each employee, enter their state of employment.

Line(s) 12 through 19 For each employee, enter the amount of federal, social security, medicare and Connecticut wages and tax withheld.

The four quarterly totals of Connecticut Tax Withheld from wages should equal the total amount of Connecticut Tax Withheld from wages for the year.

Form CT-8109

Form CT-8109, Connecticut Withholding Tax Payment Form for Nonpayroll Amounts, is an interim coupon to be used by new payers or payers who have not received the Withholding Remittance Coupon Book for Payers of Nonpayroll Amounts. Once the withholding book is received, use only the preprinted coupons in the book.  All payers of nonpayroll amounts that are subject to Connecticut Income Tax withholding are required to withhold Connecticut Income Tax at the time payments of nonpayroll amounts are made.  Use Form CT-8109 to make your payments to the Department of Revenue Services.  For further instructions, click on the CT-8109 link above.

Form CT-945

Form CT-945, Connecticut Annual Reconciliation of Withholding for Nonpayroll Amounts, may be used by new payers of nonpayroll amounts or payers who have not received the Withholding Remittance Coupon Book for Payers of Nonpayroll Amounts for the calendar year.  For further instructions, click on the CT-945 link above.

Form CT-1096

Form CT-1096, Connecticut Annual Summary and Transmittal of Information Returns, may be used by new payers or payers who have not received the Withholding Remittance Coupon Book for Payers of Nonpayroll Amounts.  This form must be filed by certain payers who are required to file federal Form 1096.  Form CT-1096 is due the last day of January if filed electronically.  No payment is to be made with this return. For further instructions, click on the CT-1096 link above.

Form CT-945 Payments

If No, please review the payments below and enter the corrected total of withholding payments made for the quarter here:

There are two methods available for entering your Withholding W-2 information: you can upload a file containing all W-2 information and values, or manually enter all W-2 information and values online.

If you have more than 25 W-2s, you must choose the "upload a file" option.