Does the Department provide any online resources for new businesses in Tennessee to learn about their tax obligations? The Department has a comprehensive “new business tax workshop” webinar available on our website and shown below. January 31, 2018 22:35 Related articles Creating a TNTAP logon TNTAP: Filing a Business Tax Return What can I do on TNTAP? How do I close my sales tax account? How do I register for sales and use tax?