IRS NOTICE REFERENCE
Understanding your CP01S notice
We received your identity theft claim. We'll send any refund you may be due after we finish working on your claim.
General information only. Not legal or tax advice.
Notice details
- Notice code
- CP01S
- Category
- Identity verification
- Severity tier
- Tier 1 — Routine. Informational or administrative notice; no response typically required.
- Governing law
- §6109; §7701(a)(16) (Internal Revenue Code sections)
- Source
- IRS.gov — Understanding Your IRS Notice
What this notice is
We received your identity theft claim. We'll send any refund you may be due after we finish working on your claim.
Source: IRS.gov. Reproduced for reference. General information — not legal or tax advice.
Official IRS reference
Read the official notice page on IRS.gov: https://www.irs.gov/individuals/understanding-your-cp01s-notice
Related tools
TaxRiskOS is workflow software for practitioners — it captures the notice, computes the deadline, surfaces the escalation tier, and builds a document checklist. It documents process; it does not give advice or draft responses.
Check this notice’s deadline (free tool)