IRS NOTICE REFERENCE
Understanding your CP3501 notice
Due to the high volume of responses received, we need more time to finish reviewing your response. We apologize for the delay.
General information only. Not legal or tax advice.
Notice details
- Notice code
- CP3501
- Category
- Refund and adjustment
- Severity tier
- Tier 1 — Routine. Informational or administrative notice; no response typically required.
- Governing law
- §6213(b); §6402 (Internal Revenue Code sections)
- Source
- IRS.gov — Understanding Your IRS Notice
What this notice is
Due to the high volume of responses received, we need more time to finish reviewing your response. We apologize for the delay.
Source: IRS.gov. Reproduced for reference. General information — not legal or tax advice.
What the IRS says to do
You do not need to do anything at this time. Please allow 60 days for us to complete our review. If you need assistance and have not received a response within 60 days of the date printed on your notice, call us at the toll-free telephone number provided on your notice.
This is the IRS’s own guidance reproduced from the IRS notice page. It describes the IRS’s process — it is not legal or tax advice from TaxRiskOS.
Official IRS reference
Read the official notice page on IRS.gov: https://www.irs.gov/individuals/understanding-your-cp3501-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)