Assuming you are using a fake SSN to work, you would need to enter the ITIN in the personal section but the SSN on the W2. If you are using Turbotax, you cannot efile that return. You will need to print and mail it in with the copy of the W@, so the IRS can match the W2 to your ITIN. Generally, the IRS does allow efiling with an ITIN/SSN mismatch, but Turbotax doesnt support that. There might be other software out there that does.
