San Juan County, Colorado property-tax rates and 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 San Juan County Assessor.
Rate context
Published1.9001% county tax rate published by San Juan County; property-specific total rates vary by taxing area. The county's 2026 abstract also illustrates 0.24% residential and 0.97% non-residential rates for Tax Area 101.
Statement mailing
PublishedJanuary 2027; San Juan County's official appeal page states tax notices are mailed each January; the exact 2027 date was not published.
Payment deadline
PublishedFor 2026 property taxes payable in 2027: first half due February 28, 2027; full payment due April 30, 2027; second half due June 15, 2027. San Juan County publishes these Colorado statutory installment dates.
Valuation protest
PublishedMay 4 through June 8, 2026; San Juan County's official appeal page identifies May 4 as the 2026 protest start and June 8 as the deadline.
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.