DEPARTMENT OF REVENUE SERVICES STATE OF CONNECTICUT FORM ... 2026

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Form CT-1120 is the Corporation Business Tax Return for the State of Connecticut, which must be filed electronically. It includes sections for reporting income, calculating taxes owed, and claiming credits. The form requires detailed financial information from corporations, including net income calculations and minimum tax computations. Additionally, it outlines requirements for filing extensions, amendments, and provides instructions for electronic submission.

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Click ‘Get Form’ to open it in the editor.
Begin by entering the income year at the top of the form. Ensure you input both the beginning and ending dates accurately.
Fill in your corporation's name, Connecticut Tax Registration Number, and Federal Employer ID Number (FEIN) in the designated fields.
Complete Schedule C by calculating your total tax based on the provided lines. Make sure to follow instructions for each line carefully, especially regarding tax credits and minimum tax calculations.
Proceed to Schedules A, B, D, E, and G as required. Each schedule has specific fields that must be filled out based on your corporation's financial data.
Review all entries for accuracy before submitting. Remember that this return must be filed electronically; do not mail a paper return.

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state of ct drs forms

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