Hi, me and my wife and son claim taxes for last 4 yeas married filing jointly. My wife start working for Worl Bank Group since may 2011, She change her status from H1 to G4. I enter to G4 visa status on Sept 2011, before I got nothing and I was using ITIN. We know her income is not taxable from the world bank, but bouth worked previosly and we have are W2 for 2011. HOW WE CAN CLAIM ARE TAXES 2011. Please any idea or help, thank you.