Request for Extension to File (CT-5, 5.3, 5.4, 5.6, 5.9, and 5.9-E)
Most corporation taxpayers are required to file their extensions electronically. File your extension electronically using our Online Services or your NYS approved e-file software. You may pay the balance due using a check and voucher, ACH debit, or ACH credit.
To use our Online Services, you must first create an account, log in, and select 'File a corporation tax online extension'. View a detailed demo.
If you are unable to file electronically, call (518) 457-5431 and ask that we mail you a paper form.