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CT-300 2026
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- Click ‘Get Form’ to open the CT-300 in the editor.
- Begin by entering your Employer Identification Number and File Number at the top of the form. This information is crucial for identifying your corporation.
- Fill in your Business Telephone Number, State or Country of Incorporation, and select the Return Type required for your filing.
- Complete the Tax Subtype and Tax Year Ending fields. Ensure you enter the correct MFI due date to avoid penalties.
- In the Computation of MFI section, accurately input figures from previous tax years as instructed. This includes Franchise Tax, MTA Surcharge, and any overpayments credited.
- Review all entries for accuracy before signing. The Authorized Person must certify that all information is true and complete.
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