How Do You Add a Login.gov Authentication Method?
Learn how to add or change Login.gov authentication methods, why two methods are recommended, and how backup codes work.
To add a Login.gov authentication method, sign in, open account settings, choose authentication methods, and add the new option such as an authentication app, phone, security key, or backup codes. Login.gov recommends at least two methods. Do not remove your only working method, because losing all methods can block account access.
Authentication method options
Authentication app
Strong everyday codes
Keep app device accessible
Phone
SMS or call codes
Avoid VOIP and premium-rate numbers
Security key
Hardware-backed sign-in
Do not lose the key
Backup codes
Emergency access
One-time use and least secure
Multiple methods
Lockout prevention
Keep at least two active
Add before you remove
The safest order is to add and test a new authentication method before removing an old method from the account.
Add the method
- 1Sign in to Login.gov.
- 2Open account settings.
- 3Choose authentication methods.
- 4Select the method you want to add and complete the confirmation step.
- 5Verify at least two usable authentication methods remain on the account.
FAQ
How many Login.gov authentication methods should I have?
Login.gov recommends keeping at least two authentication methods on the account.
What happens if I lose all authentication methods?
Login.gov warns that losing access to all authentication methods can prevent sign-in and may require account recovery or account deletion and recreation.
Are Login.gov backup codes reusable?
No. Login.gov says backup codes are one-time use and are the least secure authentication option.
Sources & method
We reviewed these references while writing this answer. Figures are estimates — confirm safety-critical work with a professional. Last updated June 7, 2026.
- How do I add or change the authentication method on my account?Login.gov · login.govSupports the official add/change authentication method flow, recommendation to keep at least two methods, and lockout consequences.
- Backup codesLogin.gov · login.govSupports backup-code behavior, one-time use, and warning that backup codes are the least secure option.