a CP 23 letter has nothing to do with your w-2. it only covers a discrepancy between estimated tax payments you reported and what the IRS records show. That letter may be real and issued from the IRS office in Az. What makes you think it's fake? if you are unsure the call the IRS, make am appointment to visit a local IRS office or check your transcript of your account with the IRS
- Call 1-800-829-1040 between the hours of 7:00 AM – 7:00 PM local time.
- Press “1” for English or “2” for Spanish.
- Press “2” for “answers about your personal income taxes.”
- Press “1” for “questions about a form you have already submitted or a payment or to order a tax transcript.”
- Press “3” for “all other questions about your tax history or payment.”
- Press “2” for “all other questions about your tax history or payment.”
- Do not input your Social Security Number when the recording tells you to.
- Press “2” for “personal- or individual-tax related question.”
- Press “3” for “all other inquiries.”
- Wait to be connected to someone at the IRS.
if there is an IRS office near you may be able to call them to set up an appointment to go over your records.Https://apps.irs.gov/app/office-locator/
IRS transcript requires you to register
https://www.irs.gov/individuals/get-transcript
