Hi @kurt166. Yes. Prepare joint federal and Colorado returns and mark yourself as nonresident and your wife as part-year for CO.
If your spouse had New York income, you can either prepare two married filing separate returns or you can file a joint resident return. If you file two separate married filing separate returns, you will be a resident and she will be a part-year resident.
I reviewed CO again. The return only picks up your wife's income so there would be no tax credit for NY tax paid on the CO return.
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