Caution:
Internal Revenue Manual Part 25. Special Topics · 2026-10-03 edition · updated 2026-10-04 · United States
When a taxpayer’s statement indicates they have lost personally identifying information, the taxpayer is a victim of non-tax-related identity theft. Refer to IRM 25.23.4.8, Identity Theft (IDT) Common Number (CN) Ownership and Case Processing Determinations, for additional information.
When directed to follow No Reply procedures, use the following table to resolve the case:
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