My mother was moved to a long term nursing facility in a different state since November of 2018. I handle all of her money and have POA. Do I have to file taxes in the state that she is in full time care and her previous state before, or just one?
It depends. You might have to file her as a part-year resident for two state returns, but it will depend on the state in question, because she may be in a state now that does not tax her income. If both states tax her income (likely only pension, but some have investments also), then she will need to file a part-year return for each state. If only one state taxes her income, then she only needs to file a part-year return for that state.
The purpose of the part-year return is to report and separate the income she made while living in that state so that not all of her income is taxed there.
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