First time to apply for taxes refund. my wife does not have an SSN, so we applied for ITIN when we submitted the federal taxes refund. for state tax however, we need to write her ITIN number. As it will not be ready before 04/18 I called the state tax office multiple times and got different answers. Apply for extension vs put zero's for SSN and we will send you a correspondence then you can answer with the ITIN when you have it. Does that sound right to you ?