Your employer corrected your W-2 for a middle initial? Was the Social Security number correct on the original W-2? The address on the W-2 is irrelevant. People move all the time. What matters is whether the employer used your correct Social Security number and entered the correct amounts for your wages. You do not need to amend for a middle initial or for an address an employer put on a W-2. Relax and enjoy the fact that your tax return was processed and you received your refund.