Understanding your CP301 notice

What this notice is about

We sent you this notice to confirm that you registered for an IRS online service.

What you need to do

• If you didn't initiate this registration when accessing one of our online services, immediately call the number on your notice to disable your account.
• If you requested an activation code by mail, to complete your registration you must:
  • Visit online services to activate your account.
    • Sign in with the username and password you created.
    • Enter your activation code from the notice you received.
• If you already completed your registration, no action is necessary.

Frequently asked questions

What happens if someone else used my personal information to register online at IRS?

If you didn't initiate this registration, immediately call the number on your notice. Once we verify your identity, we'll disable your online account.