I have a similar question. I received two W2s because I was transferred between two companies of the same giant corporation. This apparently caused a reset on my social security withholding and led to an overpayment. Both W2s have the same EIN because both employers use a Common Pay Agent.
TurboTax does not appear to be able to treat the W2s as having come from two different employers because both W2s have the EIN of the Common Pay Agent. It sounds like if TurboTax distinguished between the two employers, it would automatically put the overpayment on Schedule 3.
