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Form CT-1065/CT-1120SI and Form CT-1065/. CT-1120SI EXT can be filed electronically through the TSC. The TSC allows taxpayers to electronically file, pay, andRead more
Calculation Schedule Go to Line Instructions for Form CT 1040NR PY. 2011. 2007 Instructions Form CT 1065 CT 1120SI Connecticut Composite Income Tax. Return