The IP PIN (Identity Protection Personal Identification Number) on your CP01A Notice is a six-digit number assigned to you by the IRS. This number is used to help prevent the misuse of your Social Security Number (SSN) on fraudulent federal income tax returns. The CP01A Notice specifically provides this IP PIN for you to use when filing your tax return to ensure that no one else can file a return using your SSN.
To locate the IP PIN on your CP01A Notice, look for a section that explicitly states the six-digit IP PIN. This number is typically highlighted or set apart from other information on the notice to ensure it is easily identifiable. The notice will instruct you to use this IP PIN on your tax return in the designated IP PIN spaces provided next to your daytime phone number or occupation, depending on the form you are using.
If you have misplaced your CP01A Notice or cannot find your IP PIN, you can retrieve it online at IRS.gov/IPPIN or by calling the IRS at 800-908-4490.
Sources:
Instructions for Form 1040-C (01/2024)
Instructions for Form 2290 (07/2023)
Instructions for Form 1040-SS (2023)
Instructions for Form 1040-NR (2023)
Instructions for Form 1040-X (01/2023)
Instructions for Form SS-8 (01/2024)
1040 (2023)
