Pay your Property Taxes for Pitkin County, Colorado online via this service.
The Pitkin County Treasurer's Office bills property taxes from the tax roll warrant certified by the County Assessor. Tax notices are sent out mid-January of every year. In Colorado you pay the prior year taxes during the current year.
If the due date for your Pitkin County property tax payment falls on a Saturday, Sunday, or legal holiday, it shall be deemed to have been timely paid if filed on the next business day.