IRS / Tax Error Code
4464C | Return selected for review
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IRS / Tax
Canonical
/irs-tax/error-codes/4464c-letter/
Last Updated
Apr 16, 2026
Summary
IRS Letter 4464C indicates your return was selected for review, which can delay refund processing.
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What This Code Means
IRS Letter 4464C indicates your return was selected for review, which can delay refund processing.
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Related Codes
8 links
- 12C CodeMissing information request
- Amended return processing CodeRevised return under review
- 5071C CodeIdentity verification request
- CP05 notice CodeRefund under review notice
- Refund still processing CodeProcessing status ongoing
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- 420 CodeExamination initiated
- Refund rejected CodeRefund not approved for issuance