How do I change my phone number on a filed return?

You really do not need to update that phone number or file an amendment.

The IRS will NEVER contact you by phone. They will always use the US Mail Service. If he does have to call in, they will verify his identity using his social, address and other miscellaneous information.

However, if you would like to update that phone number, you can call the IRS directly at 1-800-829-1040.

My son just informed me that the email from Intuit he received indicated it was needed within 48 hours for IRS to accept his efiled return.