What are the rules for creating a password in TNTAP? Minimum of six characters Include both letters and numbers Have both upper case and lower case Cannot be the same as the username March 30, 2017 18:22 Related articles Will TNTAP lock me out after multiple unsuccessful attempts to login? TNTAP: Filing a Business Tax Return I didn't receive my authentication code. What do I do? Navigating in the TNTAP Home Screen What is an authentication code?