Visit www.workplace.schwab.com. Log in or click “Register Now” in the top right-hand corner. Follow the steps to set up your account. You will need to enter some personal information. You will be sent a secure email with log in instructions.
To add/change your contribution/deferral for 401(k) or Roth: Go to Manage Account > Contributions > Change Contributions. Or, from the dashboard, click on the “I want to…” arrow, and choose the action you want to take.