Can I link more than one CPA, tax preparer or other third party to my tax accounts? Yes, multiple third parties may be linked to one account. May 27, 2018 14:43 Related articles Creating a TNTAP logon TNTAP: Gaining Access as a Third Party What are the rules for creating a password in TNTAP? What is the due date for a franchise and excise tax return that covers less than 12 months? What information do I need to create a TNTAP login or gain access to an account in TNTAP?