Idid my deceased mother's taxes, and had no issues with the federal return. I received the funds within a couple of weeks.
My state, Michigan, is a completely different story. They held the return without letting me know why. They also said they won't communicate with me because I'm not the tax payer. They say I need a court probate order. We didn't have anything to do with probate as everything was set up before my mother died. This refund is over 2k. So story whatever I need to do. But they are extremely difficult to work with. They won't give me any information at all.
