When measured as a percentage of federal adjusted gross income gained over the previous year, Idaho, Wyoming, Montana, Florida, South Carolina, Nevada, Delaware, Arizona, Maine, and Vermont were the top ten states for gaining AGI in the 2019-2020 tax year. New York, Illinois, Alaska, California, North Dakota, Nebraska, Maryland, Massachusetts, New Jersey, and Minnesota were in the bottom 10, with each recording a net loss in people and income to other states.