As provided in the Colorado State Constitution, all property is subject to ad valorem property tax unless specifically exempt. A number of exemptions have been added to the Constitution over the years. Following are the specific exemptions that are allowed and the clause of the Constitution pertaining to the exemption:
Section 3. (1) (b) ...Non-producing unpatented mining claims, which are possessory interests in real property by virtue of leases from the United States of America, shall be exempt from property taxation.
Section 3. (1) (c) The following classes of personal property, as defined by law, shall be exempt from property taxation: Household furnishings and personal effects which are not used for the production of income at any time; inventories of merchandise and materials and supplies which are held for consumption by a business or are held primarily for sale; livestock; agricultural and livestock products; and agricultural equipment which is used on the farm or ranch in the production of agricultural products.
Section 3. (1) (d) Ditches, canals and flumes owned and used by individuals or corporations for irrigating land owned by such individuals or corporations, or the individual members thereof, shall not be separately taxed so long as they shall be owned and used exclusively for such purposes.
Section 3.5 (1) For property tax years commencing on or after January 1, 2002, fifty percent of the first two hundred thousand dollars of actual value of residential real property, as defined by law, that, as of the assessment date, is owner-occupied and is used as the primary residence of the owner-occupier shall be exempt from property taxation if:
(a) The owner-occupier is sixty-five years of age or older as of the assessment date and has owned and occupied such residential real property as his or her primary residence for the ten years immediately preceding the assessment date;
(b) The owner-occupier is the spouse or surviving spouse of an owner-occupier who previously qualified for a property tax exemption for the same residential real property under paragraph (a) of this subsection (1); or
(c) For property tax years commencing on or after January 1, 2007, only, the owner-occupier, as of the assessment date, is a disabled veteran. (For further information on Senior Exemptions and Disabled Veterans Exemptions, please follow the appropriate links under "Related Information " below.)
Section 4. The property, real and personal, of the state, counties, cities, towns and other municipal corporations and public libraries, shall be exempt from taxation.
Section 5. Property, real and personal, that is used solely and exclusively for religious worship, for schools or for strictly charitable purposes, also cemeteries not used or held for private or corporate profit, shall be exempt from taxation, unless otherwise provided by general law. (The Colorado Department of Property Taxation is responsible for approving religious, educational and charitable exemptions. See the link under "Related Information " below for further information.)
Section 6. The general assembly shall enact laws classifying motor vehicles and also wheeled trailers, semi-trailers, trailer coaches, and mobile and self-propelled construction equipment, prescribing methods of determining the taxable value of such property, and requiring payment of a graduated annual specific ownership tax thereon, which tax shall be in lieu of all ad valorem taxes upon such property; except that such laws shall not exempt from ad valorem taxation any such property in process of manufacture or held in storage, or which constitutes the inventory of manufacturers or distributors thereof or dealers therein; and further except that the general assembly shall provide by law for the taxation of mobile homes.