Generally, the state residency rules are based on more than just a driver's license and voter registration. Most states look at multiple factors to determine what the intent of the taxpayer is. The most significant factor is time spent in each state. I don't know the states involved, so I can't give you specifics for your situation but your state tax board should have information on their website. Search for 'resident status' or similar, and you should find the rules for your state.
If it is determined that your husband is a resident of the state where your retirement home is located, he may need to file a part-year return or resident return in that state for 2022. In that case, your income and tax items would need to be allocated between the two states.
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