Pitkin County, Colorado property-tax payment and appeal deadlines
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The reviewed record below separates published figures from items that still require confirmation with Pitkin County Assessor.
Rate context
ConfirmPitkin publishes 2026 assessment rates and district-specific mill levies, not one countywide effective percentage. Its official illustrative residence example produces approximately 0.527% of actual value (78.581 mills on $4,645,000 actual value), but actual rates vary by tax district and property class.
Statement mailing
PublishedBy the end of January 2027; Pitkin County's official assessor information says the Treasurer mails tax statements by the end of January.
Payment deadline
PublishedFor 2026 property taxes payable in 2027: taxes are due January 1, 2027; amounts over $25 may be paid in two equal installments, with the first half due by February 28, 2027 and the second half by June 15, 2027, or paid in full by April 30, 2027. Colorado county treasurers apply delinquent interest after the applicable deadline; a statutory weekend/holiday adjustment may apply.
Valuation protest
PublishedMay 1 through June 8, 2026 under Colorado's standard real-property protest period; Pitkin's official appeal page reviewed publishes the prior cycle's dates and the county uses the statutory period.
Do not assume a grace period.
The reviewed record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat a published payment deadline as a hard operational date and retain your receipt or confirmation number.
From assessment to collection
01Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
02Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
03Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.