I live & work in Illinois, in 2023 sold vacant land in Colorado for under $100,000.
I live & work in Illinois. I bought vacant land in 2007 for $35,000 in Colorado. In 2023 I sold this vacant land in Colorado for under $100,000 and received a 1099-S (Proceeds from Real Estate Transactions). Do I need to file my taxes in the state of Colorado along with Illinois?