On laptops and desktop computers:

1. Sign in to your TurboTax account
2. Select Intuit Account from the menu
3. On the Hello! screen, select Sign in & security
4. On the next screen, select 2-step verification and follow the instructions to enable or disable

The TurboTax mobile app does not support two-step verification and cannot be used to enable or disable two-step verification.

https://ttlc.intuit.com/turbotax-support/en-us/help-article/security-risk/enable-disable-two-step-verification-feature/L8ehDUAjt_US_en_US