529 contributions are not deductible on the federal return, so they must be entered directly in the state.
1. From the mend on the left side of your screen select State Taxes > Your State Returns > Colorado > Start or Continue
2. Continue until you arrive at "Here's the income that Colorado handles differently"
3. Scroll to Education, 529 CollegeInvest Program Contributions, start or continue to claim the deduction.
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