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Understanding your CP304B notice

What this notice is about

We couldn't complete your request for transcripts or copies of your tax returns because we couldn't verify the signature.


What you need to do


You may want to

  • Learn more about signature title requirements for each tax return form type.
  • Learn more about proper authorization for third parties.

Need help?

  • You can authorize someone to represent you before the IRS or inspect and/or receive confidential tax information.
  • You may be eligible for free help from the .
  • See if you qualify for help from a .
  • You can request a copy of your notice or letter in Braille or large print.
  • If you can’t find what you need online, call the telephone number on your notice or letter.