I have applied for an ITIN for my wife since this is the first year we're filing jointly, however, it's been over 3 months since I mailed my federal tax return and the IRS still has no indication that they have received the application and are processing it. What should I do if my wife still does not have an ITIN when the deadline to file the California state tax return in October comes? Would it be possible if I redo my taxes to single filing so I can e-file for both federal and state, then claim the refund next year when she has her ITIN?
