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Filing Deadlines

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January 1: Assessment Date for all Personal Property

April 15: Declaration Schedules due to county assessor Deadline to request a filing extension

June 15: Deadline for assessor to mail Notice of Valuation

June 30: Last day to protest to county assessor

June 15 - July 5: Assessor personal property protest hearings

July 10: Deadline for assessor to mail Notice of Determination

July 1 - August 5: County Board of Equalization hears personal property appeals

View the full Assessment Calendar. Note that some counties follow an alternate appeals process that affects some of the above appeal deadlines. (Refer to §§ 39-5-122(2), 39-5-122.7(1), and 39-8-106(1), 107(2), C.R.S., or contact your county assessor for more information.)

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