If you are paying your tax due to Connecticut you should make the check payable to Commissioner of Revenue Services.
The mailing address is:
Department of Revenue Services
State of Connecticut
PO Box 2921
Hartford, CT 06104-2921
You should also include your Form CT-1040V with your payment. If you do not see this form in your print out from TurboTax you can also access it here: http://www.ct.gov/drs/lib/drs/forms/1-2015/incometax/ct-1040v.pdf
If you are making Estimated Tax Payments to Connecticut you can still make the checks payable to Commissioner of Revenue Services but the mailing address is:
Department of Revenue Services
State of Connecticut
PO Box 2932
Hartford CT 06104-2932
