Understanding Your CP158 Notice


What this notice is about

We’re reviewing your Form 1120-F and holding a part of your refund until we complete our review.

What you need to do

You don’t need to take any action right now.

Frequently asked questions

Why is my return being reviewed?

We need to verify the income or the income tax withholding you reported on your return. This doesn’t mean you made an error or were dishonest.

What if I didn’t file the tax return?

Someone else may have filed it for you without your consent. Send us a completed and signed Form 14039, Identity Theft Affidavit (PDF). You may want to read our identity theft resources page while we review your Form 14039.

Need Help?

  • You can authorize someone to contact the IRS on your behalf.
  • If you can’t find what you need online, call the IRS number at the top of your notice or letter.