⚠️ Important Notice (Update received as of October 31, 2025)
The CDTFA recently has issues in its login process. Codes can no longer be sent to secondary logons email. Because of this, you must temporarily replace your email address with Kintsugi’s secure Virtual Mail Group email address (VMG ID).
✅ What You’ll Need
Access to the CDTFA Online Services Portal
Your CDTFA username and password
Kintsugi Mail’s Virtual Mail Group (VMG) ID
(Go to Configuration → Kintsugi Mail → Virtual Mail Group → Group ID in your Kintsugi app)
🔐 Step-by-Step Instructions
1. Log in to CDTFA
a. Go to https://onlineservices.cdtfa.ca.gov/
b. Enter your username and password, then click Log In.
c. If prompted with Confirm Identification, click Send Authentication Email to receive a code.
d. Enter the code sent to your registered email, select Yes to “Trust This Browser,” and click Logon.
2. Go to Your Profile Settings
Once logged in, click your name in the top-right corner.
Choose Settings → Profile.
3. Update the Email Used for 2FA
CDTFA is not able to send authentication codes to secondary logins at the moment. Please replace main email with Kintsugi’s secure Virtual Mail Group email address (VMG ID).
Here’s how:
Under Profile Information, locate your current email address.
Click Edit.
Replace it with the Kintsugi Virtual Mail Group (VMG) ID you copied from the app.
Click Save Changes
⚠️ Important:
This update is temporary and only used for secure tax access.
You can revert to your original email after we complete setup.
We recommend adding your personal or work email to the same Virtual Mail Group in Kintsugi so you continue receiving state notices.
Because of this, the previous setup process presented below is temporarily on hold and not in use at this time until further notice.
📌 Overview
This article walks you through how to log into California Department of Tax and Fee Administration (CDTFA) website and update your Two-Factor Authentication (2FA) settings. Adding Kintsugi’s secure group email allows us to access your California tax registration directly—no phone calls or back-and-forth codes needed.
✅ What You’ll Need
Access to the CDTFA portal
Your CDTFA login credentials (username & password)
Kintsugi Mail's Virtual Mail Group ID
[Go to Configuration > Kintsugi Mail > Virtual Mail Group > Group ID)Just 5–7 minutes of your time
🔐 Step-by-Step Instructions
Log into the CDTFA portal
Input your credentials then click “Log In”.
If prompted with “Confirm Identification”, click “Send Authentication Email” button to receive the authentication code to the email address indicated below that button.
Enter the authentication code sent through your registered email and choose “YES “ to Trust This Browser — this helps avoid repeated 2FA prompts during the process, then click “Logon”.
Navigate to your Security settings
Once logged in, click on the “Settings” in the top-right corner.
In the Settings menu, navigate to the Profile tab. Within the Profile tab, select “Secondary Logons”.
Update your Two-Factor Authentication (2FA) method
On the Secondary Logons page, click “Add” button to add access.
Access the Virtual Mail Group (VMG) ID within the Kintsugi app.
Navigate to: Configuration > Kintsugi Mail > Virtual Mail Group > Group IDCopy the VMG ID:
⚠️ IMPORTANT: Please make sure to add your personal or work email in the Virtual Mail Group. This is to ensure you continuously receive important updates and messages from state portals. Check out this help article on How to Manage Your Virtual Mail Group in the Kintsugi Platform to learn more.
Simply paste the Virtual Group Mail ID you copied from the Kintsugi platform into the designated fields below. After entering the required information, click "Next"
On the “Grant Access to Accounts” page, click “Submit” to save the changes.
Verify the change
A verification code will be sent to the email address you linked to Kintsugi’s Virtual Mail Group (VMG)
Copy the verification code that was sent to the email—the one you added or connected in the Virtual Mail Group. Then, paste it into the website or portal to verify and complete the 2FA setup.
Once verified, your account is now connected, and Kintsugi can access it as needed.
Need more information? You can check this help article: FAQs - 2FA and State Portal Access
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.