You may request the extension by submitting a Hall income tax extension payment through TNTAP. You do not need a TNTAP logon to submit an extension payment. From the home page of TNTAP, find the section titled Make a Payment without Logging In. Next, select your payment type (credit card or ACH debit). You will be prompted to provide information about your account. Next, select Extension Payment as the type of payment you wish to submit and complete any other required fields.
You can also request an extension by fling an INC 251 through an approved software vendor or printing a paper INC 251 and mailing it to the Department.