I got a CP01A notice from the IRS
If you got a notice from the IRS, don’t worry. We’ll do our best to help you figure out what to do next.
The CP01A notice notice, issued every year, tells you about the 6-digit Identity Protection Personal Identification Number (IP PIN) the IRS sent you. The PIN is to help prevent the misuse of your Social Security Number.
Get more detailed information about the IP PIN from the IRS.