Hi all, Few questions ans concenrns. 1. After five years of stay on F-1, one can file TAX as US residence. So we can use the form 1040 when filing jointly with spouse. Is that correct? 2. Since F2 spouse cannot have SSN, he/she need to apply for Tax ID Number ITIN). Is it good to file single or good to have TIN number for spouse and file jointly? I guess more return in second case, but is there any long term effect of having TIN? 3.How hard is to get TIN. Any body who went through this procedure please help. Thanks