IRS Letters and Forms
CP01

CP01 — We have verified your claim of identity theft.

We have verified your claim of identity theft.

What to do next

Start with these steps before you reply.

CP01

Read the notice carefully and note any deadline. Gather returns, notices, and payment records. Book a free strategy session before responding if the amount is large, unclear, or collection language appears.

What the IRS language says

We have verified your claim of identity theft.

What it usually means

CP01 is in our IR Manual catalog. Official wording is dense — we translate it for business owners and individuals and map realistic next steps.

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