If your account is already open:

  1. Visit https://open.quonticbank.com/login.
  2. Enter your email address, verification code, and SSN.
  3. Click Next > Accounts > Setup.
  4. On the Account Details screen, click Add Joint Owner and enter their first name and email address.
  5. The joint owner will receive an email invitation immediately. If it does not arrive within a few minutes, check your spam folder.