if you do nothing the IRS will eventually proceed to assume it is correct. this would change your refund or even hold up your refund until you respond.
if there's a number on the notice call it
otherwise
- 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.
