IRS CP01 Notice: Your Identity Theft Claim Was Verified
Notice Instructions: The IRS says no additional response is needed for this notice. Keep meeting your tax filing deadlines.
Keep the confirmation with your tax records. Your next filing should reflect the protection now on the account.
CP01 confirms that the IRS verified your identity theft claim and placed an indicator on your tax account to help prevent future fraud.
Read The IRS Guidance For CP01 · Source checked October 11, 2026.
What to Check Next
- Step 1: Keep the notice with your records and continue filing required returns on time.
- Step 2: Use the current six-digit Identity Protection PIN when filing future returns. The IRS issues a new IP PIN annually.
- Step 3: Monitor financial accounts and credit reports for unfamiliar activity. Use official IRS guidance for further tax-account identity theft concerns.
Common Questions About CP01
- Does CP01 Ask Me To Verify My Identity Again?
- CP01 confirms a verified identity theft claim. Read the exact notice code; other identity-related letters can request different actions.
- Does The Account Indicator Prevent Me From Filing?
- No. It does not prevent filing, payment, or a refund. Use your current IP PIN when filing.
Understand the Notice.
See the Bigger Picture.
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