IRS Letter 4464C: Refund held for review
Quick answerYour refund is being held while the IRS checks the income, withholding or credits on the return.
Letter / notice4464C
MeaningRefund held for review
Action needed?Yes — see steps
What happens next
The letter gives a review window — often 60 days or more.
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What you should do
- Usually no action unless the IRS asks for documents
- Keep W-2s, 1099s and credit records handy

Scam check: the IRS first contacts you by mail. Use only the phone numbers printed on your letter or on IRS.gov — never ones from a text, email or unofficial site.
Frequently asked questions
What does IRS Letter 4464C mean?
Your refund is being held while the IRS checks the income, withholding or credits on the return.
What should I do?
Usually no action unless the IRS asks for documents Keep W-2s, 1099s and credit records handy
How long does it take?
The letter gives a review window — often 60 days or more.
Sources
- IRS: Understanding your IRS notice or letter
- IRS: Get Transcript
- Taxpayer Advocate Service (independent help inside the IRS)
Written by the editorial team and checked against the official sources above. See our editorial policy.
By the TranscriptCodes Editorial Team · Last reviewed 2026-11-12.