IRS NOTICE REFERENCE
Understanding your CP508R notice
The IRS has reversed the certification of your tax debt as seriously delinquent and notified the State Department of that reversal. You do not need to respond to this notice .
General information only. Not legal or tax advice.
Notice details
- Notice code
- CP508R
- Category
- Installment agreement and collection alternatives
- Severity tier
- Tier 2 — Action or response expected. The IRS has taken or proposed an action and expects a response or payment.
- Governing law
- §6159 (Internal Revenue Code section)
- Source
- IRS.gov — Understanding Your IRS Notice
What this notice is
The IRS has reversed the certification of your tax debt as seriously delinquent and notified the State Department of that reversal. You do not need to respond to this notice .
Source: IRS.gov. Reproduced for reference. General information — not legal or tax advice.
What the IRS says to do
Keep this notice in your permanent records. Continue to make timely payments and meet requirements for any applicable installment agreement, offer in compromise, Justice Department settlement agreement, innocent spouse relief, or collection due process hearing in connection with a levy.
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.
Governing IRS procedure (Internal Revenue Manual)
The IRS’s own internal procedures for handling this notice type are documented in the Internal Revenue Manual:
- IRM 5.14.1 — 5.14.1 Securing Installment Agreements
- IRM 5.14.5 — 5.14.5 Streamlined, Guaranteed and In-Business Trust Fund Express Installment Agreements
- IRM 5.14.2 — 5.14.2 Partial Payment Installment Agreements and the Collection Statute Expiration Date (CSED)
Reference to published IRS procedure. 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-cp508r-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)