H4 to H1 filed under H1 cap exempt - when can I start working

[Josin]

I had an approved and stamped H1-B visa which was never utilized since i quit from my previous companyin india.I came to US in feb 2012 on H4 visa.

Now in Aug 2013 A consulting company here in US filed a cap exempt H1-B transfer I-129 through Premium processing. *And the consulting company has informed me that I can start working immediately after filing the case to USCIS, before getting the approval of H1 status.

Please let me know if this is true?

as per my understanding I have to wait till I get approved H1 status before i canI start working. Could anyone please confirm.

[kabkaba]

That is not correct. You need to have change of status approved before you can begin. Starting on receipt is only applicable if you are already in H1 status.