The Internal Revenue Service sends out many different documents to taxpayers. They never contact you by telephone, email, or text message. A family of these documents, beginning with the letters CP for “computer paragraph” are generated by a machine. You can find a complete listing of IRS letters and notices at www.irs.gov.
Some of the more common CP “letters” are shown below with a brief explanation. Once you understand what the IRS is requesting from you, contact a tax practitioner for guidance. Do not ignore a letter you receive from the Internal Revenue Service.