CP63: We Have Held Your Tax Refund
CP63 is issued to inform the taxpayer that their refund is held as a result of an IRS Collection function determination of a potential delinquent return liability. The notice contains the Refund Hold toll-free number: 1-866-897-3315.
[IRM 25.12.1.6 (11-24-2009)]
Updated: July 11, 2025