Ct op 424 2026

1. Click ‘Get Form’ to open the ct op 424 in the editor.
2. Begin by entering your entity’s taxable year, Connecticut Tax Registration Number, Federal Employer Identification Number (FEIN), and Secretary of State Business Identification Number at the top of the form.
3. In section 1, input the business entity tax amount of $250. If applicable, complete sections for late penalties and interest as outlined in the instructions.
4. Fill in your business name and address clearly. Ensure all details are accurate to avoid processing delays.
5. Sign and date the declaration at the bottom of the form, confirming that all information is true and correct.
6. Once completed, you can either file electronically through our platform or print and mail it to the Department of Revenue Services.

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