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šŸ›ļø Tennessee – Setting Up Two-Factor Authentication (2FA) on TNTAP Portal

Updated today

This article walks you through how to log into Tennessee Taxpayer Access Point (TNTAP) portal and update your Two-Factor Authentication (2FA) settings. Adding Kintsugi’s secure group email allows us to access your Tennessee tax registration directly—no phone calls or back-and-forth codes needed.


āœ… What You’ll Need

  • TNTAP login page

  • Your TNTAP login credentials (username & password)

  • The 2FA virtual mail group ID
    [Go to Configuration > Kintsugi Mail > Virtual Mail Group > Group ID)

  • Just 5–7 minutes of your time


šŸ” Step-by-Step Instructions

  1. Log into the TNTAP

    1. Input your credentials then click ā€œLog Inā€.

      Open 2FA.png

      2FA.png
    2. If prompted with ā€œVerify Security Codeā€, enter the security code sent through your registered email and check ā€œTrust this browserā€ — this helps avoid repeated 2FA prompts during the process, then click ā€œConfirmā€.

      2FA (2).png

  2. Go to your account settings

    1. Once logged in, click on your ā€œManage My Profileā€ in the top-right corner.

      2FA (1).png

    2. Go to ā€œTwo Step Verification Settingā€ and click on ā€œChange Two-Step Settings".

      2FA (3).png

  3. Update your Two-Factor Authentication (2FA) method

    1. Look for ā€œEmailā€ column.

    2. Select ā€œAdd Emailā€.

      2FA (4).png
    3. Replace the existing email (if any) with Kintsugi Mail.
      Enter the Virtual Group Mail ID from the Kintsugi platform.
      ​Example: file-upload-demo-cody@tax-platform.com
      ​(Check your Kintsugi app: Configuration > Kintsugi Mail > Virtual Mail Group > Group ID)

    4. Save the changes.

      2FA (5).png

4. Verify the change

  • A verification code will be sent to Kintsugi Mail’s inbox

  • You’ll see this code appear in your Kintsugi Operations Inbox

  • Enter the code on TNTAP to verify and complete the setup

Once verified, your account is now connected. Kintsugi Mail will then be able to receive two-factor authentication codes whenever you log into your account in the future.


Need more information? You can check this help article: FAQs - 2FA and State Portal Access
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For further concerns, we're always here to help. If you can't find the answer you're looking for, please reach out to us using the chat bubble in the bottom right corner.


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