Understanding your CP01C notice

What this notice is about

We verified your identity theft claim and found no tax-related fraudulent activity. We placed an identity theft indicator on your tax account and will monitor it to help prevent future fraud.


What you need to do

  • File your federal tax returns on time.
  • Pay any tax you owe by the due date to avoid interest and penalties.
  • View your payment options or set up a payment plan if you can’t pay in full.

What you need to know

  • You can request an Identity Protection Personal Identification Number (IP PIN) for added account protection by creating an account online.
  • Learn how to protect yourself from identity theft and report it to law enforcement, credit bureaus, and financial institutions.
  • Visit our Identity theft Central to learn more on reporting identity theft to law enforcement. You can also find information for protecting yourself, and keeping your personal information safe, including your children’s taxpayer identification numbers, identity documents, benefits, and other identity information.

Frequently asked questions

The indicator on your account doesn’t affect your ability to file your tax return, make payments, or get a refund Whenever your account has the identity theft indicator, you’ll need to use an Identity Protection Personal Identification Number (IPPIN) when you file your tax returns.

The indicator will stay on your account until you specifically request that we remove it.

You can contact us at 800-908-4490 for assistance with identity theft-related issues.

You can find it by visiting:


Tips for next year

  • File your tax return on time. If you can’t file on time, e-file Form 4868 to request an automatic extension of time to file. An extension to file doesn’t extend the time you have to pay.
  • Pay any taxes you owe by the due date to avoid interest and penalties, or explore alternate options like a payment plan if you can’t pay in full.
  • Learn more about how to get an identity protection PIN (IP PIN).

Need help?