Per Expert @JamesG1:
This Colorado Department of Revenue Taxation Division website states:
"Nonresident Definition
A nonresident is an individual who did not reside within the boundaries of Colorado at any time during the tax year. However, the person may have temporarily worked in Colorado and/or received income from a source in Colorado. A nonresident is required to file a Colorado income tax return if they:
- are required to file a federal income tax return, and
- had taxable Colorado-sourced income."
By this definition you would not be required to file a Colorado return. However, keep track of your losses to use in the future, as you suggested.
Here's more discussion on State Return for K-1.
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