J1 (exemption) to H1B tax return 2010
Hi,
I entered US in September 2009 with a J1 visa. Since October 2010, I changed to H1B visa.
I filed a 1040NR-EZ & 8843 for 2009, claiming tax exemption treaty. I filed as a single.
I did not have federal tax withholding until the end of my J1 status (August 2010). I then started paying tax, Medicare and SS since October 2010.
Which form(s) should I file for 2010's return, and what filing status should I put (single, joint filing, etc)? I have a spouse and a kid (born August 22nd, 2010).
I also received a 1042-S for 2009 filing (as far as I understand, do I need to wait for this form to do filing?
In addition, since I filed as a single for 2009, I did not ask for ITIN for my wife, and she did not file a tax return. My colleague told me that she supposed to file a tax return by herself. Is there anything I should do? Should I just file a W7 with my tax return?
Thank you in advance.