Prop 116 was approve in the November election cutting the tax rate from 5.63 to 5.55% 4.63% to 4.55%.
https://www.thedenverchannel.com/news/election-2020/colorado-voters-pass-proposition-116-which-cuts-...
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I can't see whether it has really been implemented by CO yet, because the CO dept of revenue tax webpage is down for a few days for updating....but if the tax software is using 5.55% 4.55%, that would appear that is the proper rate.
Of course, ALLL the software is in a state of change right now...there will be hundreds of needed updates before you can file at the end of January, or early February...so I guess it's possible it could change.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
