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IRS CP05

Your refund is on hold while the IRS verifies your return

Respond by

No response is needed; the IRS page says to allow up to 60 days and not to call before then

Who sent it

IRS
Facts on this page come from that IRS page, last updated by the IRS Sep 25, 2026; read by TaxScout Oct 19, 2026.

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What this letter asks of you, what to gather, and what to ask a professional if you need one. No phone number asked.

What this letter means

The IRS is holding your refund because it needs more time to verify your income, income tax withholding, tax credits and/or business income. A review does not mean you made an error or were dishonest.

The IRS is asking for documents behind an item on your return.

What to do

  1. 1If you filed the return, no action is required; wait for the review to finish.
  2. 2Do not call until 60 days after the notice date, and only if you have not received your refund or heard from the IRS.
  3. 3If you did not file the return, complete Form 14039, Identity Theft Affidavit, on paper, sign it, and mail it to the address at the top of your notice.

Is this letter real?

If you did not file the return, someone may have used your information; the IRS page directs you to Form 14039.

Check the notice number against the official IRS site before you respond, and respond only to the address or number printed on the official page.

Common questions

What is IRS CP05?

The IRS is holding your refund because it needs more time to verify your income, income tax withholding, tax credits and/or business income. A review does not mean you made an error or were dishonest. The IRS page for it is titled 'Understanding your CP05 notice'.

How long do I have to respond to CP05?

No response is needed; the IRS page says to allow up to 60 days and not to call before then. The date printed on your letter controls; the IRS page for this notice is the source.

Is CP05 a scam?

If you did not file the return, someone may have used your information; the IRS page directs you to Form 14039.

Do I need a CPA for CP05?

Not always. Upload the letter and the free report explains what it asks for and what to gather; if a professional makes sense, the report says why and what to ask. TaxScout never shares your request with any firm unless you ask for that on the report.

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Not tax advice. TaxScout is not the IRS. Deadlines and steps above are quoted from the IRS page linked at the top and may change; the letter in your hand controls.