The property described in this section is exempted from general property taxes:

   (1)   Jewelry, household furnishings, and apparel. Personal ornaments and jewelry, family portraits, private libraries, musical instruments other than pianos, radio equipment, household furniture, equipment and furnishings, apparel, motor bicycles, electric bicycles, bicycles, and firearms if such items are kept for personal use by the owner and pianos if they are located in a residence.

   (2)   Animals. Farm poultry, farm animals, bees and bee equipment and fur-bearing animals under 4 months of age and the hides and pelts of all farm and fur-bearing animals in the hands of the grower.

   (3)   Boats. Watercraft employed regularly in interstate traffic, watercraft laid up for repairs, all pleasure watercraft used for recreational purposes, commercial fishing boats and equipment that is used by commercial fishing boats, charter sailboats and charter boats, other than sailboats, that are used for tours.

   (3m)   Charter sport fishing boats. Motorboats, and the equipment used on them, which are regularly employed in carrying persons for hire for sport fishing in and upon the outlying waters, as defined in s. 29.001 (63), and the rivers and tributaries specified in s. 29.2285 (2) (a) 1. and 2. if the owner and all operators are licensed under s. 29.512 or under s. 29.514 or both and by the U.S. coast guard to operate the boat for that purpose.

   (4)   Crops. Growing and harvested crops, and the seed, fertilizer and supplies used in their production or handling, in the hands of the grower, including nursery stock and trees growing for sale as such, medicinal plants, perennial plants that produce an annual crop and plants growing in greenhouses or under hotbeds, sash or lath. This exemption also applies to trees growing for sale as Christmas trees.

   (5)   Family supplies. Provisions and fuel to sustain the owner’s family; but no person paying board shall be deemed a member of a family.

   (6)   Feed. Feed and feed supplements owned by the operator or owner of a farm and used in feeding on the farm and not for sale.

   (7)   Horses, etc. All horses, mules, wagons, carriages, sleighs, harnesses.

   (9)   Tools and garden machines. The tools of a mechanic if those tools are kept and used in the mechanic’s trade; and garden machines and implements and farm, orchard and garden tools if those machines, implements and tools are owned and used by any person in the business of farming or in the operation of any orchard or garden. In this subsection, “machine” has the meaning given in sub. (10) (a) 2.

   (10)   Farm machinery and equipment.

      (a)    In this subsection:

         1.    “Building” means any structure that is intended to be a permanent accession to real property; that is designed or used for sheltering people, animals or plants, for storing property or for working, office, parking, sales or display space, regardless of any contribution that the structure makes to the production process in it; that in physical appearance is annexed to that real property; that is covered by a roof or encloses space; that is not readily moved or disassembled; and that is commonly known to be a building because of its appearance and because of the materials of which it is constructed.

         2.    “Machine” means an assemblage of parts that transmits force, motion and energy from one part to another in a predetermined manner.

      (b)    Tractors and machines; including accessories, attachments, fuel and repair parts for them; whether owned or leased, that are used exclusively and directly in farming; including dairy farming, agriculture, horticulture, floriculture and custom farming services; but not including personal property that is attached to, fastened to, connected to or built into real property or that becomes an addition to, component of or capital improvement to real property and not including buildings or improvements to real property, regardless of any contribution that that personal property makes to the production process in them and regardless of the extent to which that personal property functions as a machine.

      (c)    For purposes of this subsection, the following items retain their character as tangible personal property, regardless of the extent to which they are fastened to, connected to or built into real property:

         1.    Auxiliary power generators.

         2.    Bale loaders.

         3.    Barn elevators.

         4.    Conveyors.

         5.    Feed elevators and augers.

         6.    Grain dryers and grinders.

         7.    Milk coolers.

         8.    Milking machines; including piping, pipeline washers and compressors.

         9.    Silo unloaders.

         10.    Powered feeders, but not including platforms or troughs constructed from ordinary building materials.

   (11)   Cheese. Natural cheese owned by the Wisconsin primary manufacturer or by any other person while in storage for the purpose of further aging in preparation for cutting, packaging or other processing.

   (14)   Milkhouse equipment. Milkhouse equipment used by a farmer, including mechanical can coolers, bulk tanks and hot water heaters. This exemption shall apply whether such equipment is deemed personal property or is so affixed to the realty as to be classified in the category of real estate.

   (17)   Merchants’ stock-in-trade; manufacturers’ materials and finished products; livestock. As of January 1, 1981, merchants’ stock-in-trade, manufacturers’ materials and finished products and livestock.

   (18)   Energy systems. Biogas or synthetic gas energy systems, solar energy systems, and wind energy systems. In this subsection, “biogas or synthetic gas energy system” means equipment which directly converts biomass, as defined under section 45K (c) (3) of the Internal Revenue Code, as interpreted by the Internal Revenue Service, into biogas or synthetic gas, equipment which generates electricity, heat, or compressed natural gas exclusively from biogas or synthetic gas, equipment which is used exclusively for the direct transfer or storage of biomass, biogas, or synthetic gas, and any structure used exclusively to shelter or operate such equipment, or the portion of any structure used in part to shelter or operate such equipment that is allocable to such use, if all such equipment, and any such structure, is located at the same site, and includes manure, substrate, and other feedstock collection and delivery systems, pumping and processing equipment, gasifiers and digester tanks, biogas and synthetic gas cleaning and compression equipment, fiber separation and drying equipment, and heat recovery equipment, but does not include equipment or components that are present as part of a conventional energy system. In this subsection, “synthetic gas” is a gas that qualifies as a renewable resource under s. 196.378 (1) (h) 1. h. In this subsection, “solar energy system” means equipment which directly converts and then transfers or stores solar energy into usable forms of thermal or electrical energy, but does not include equipment or components that would be present as part of a conventional energy system or a system that operates without mechanical means. In this subsection, “wind energy system” means equipment which converts and then transfers or stores energy from the wind into usable forms of energy, but does not include equipment or components that would be present as part of a conventional energy system. Until the tax incremental district terminates, the exemption under this subsection for biogas or synthetic gas energy systems does not apply to property in existence on January 1, 2014, and located in a tax incremental financing district in effect on January 1, 2014.

   (19)   Camping trailers, recreational mobile homes, and recreational vehicles.

      (b)    Recreational mobile homes, as defined in s. 66.0435 (1) (hm), and recreational vehicles, as defined in s. 340.01 (48r). The exemption under this paragraph also applies to steps and a platform, not exceeding 50 square feet, that lead to a doorway of a recreational mobile home or a recreational vehicle, but does not apply to any other addition, attachment, deck, or patio.

   (20)   Logging equipment. All equipment used to cut trees, to transport trees in logging areas or to clear land of trees for the commercial use of forest products.

   (21)   Structures for ginseng. Any temporary structure in the hands of a grower of ginseng used or designed to be used to provide shade for ginseng plants.

   (22)   Rented personal property.

      (a)    Except as provided in par. (b), personal property held for rental for periods of one month or less to multiple users for their temporary use, if the property is not rented with an operator, if the owner is not a subsidiary or affiliate of any other enterprise and the owner is engaged in the rental of the property subject to the exemption to the other enterprise, if the owner is classified in group number 735, industry number 7359 of the 1987 standard industrial classification manual published by the U.S. office of management and budget and if the property is equipment, including construction equipment but not including automotive and computer-related equipment, television sets, video recorders and players, cameras, photographic equipment, audiovisual equipment, photocopying equipment, sound equipment, public address systems and video tapes; party supplies; appliances; tools; dishes; silverware; tables; or banquet accessories.

      (b)    Personal property held primarily for rental for periods of 364 days or less to multiple users for their temporary use, if the property is not rented with an operator, if the owner is not a subsidiary or affiliate of any other enterprise and the owner is engaged in the rental of the property subject to the exemption to the other enterprise, if the owner is classified under 532412 of the North American Industry Classification System, 2012 edition, published by the U.S. bureau of the census, and if the property is heavy equipment used for construction, mining, or forestry, including bulldozers, earthmoving equipment, well-drilling machinery and equipment, or cranes.

   (23)   Vending machines. All machines that automatically dispense food and food ingredient, as defined in s. 77.51 (3t), upon the deposit in the machines of specified coins or currency, or insertion of a credit card, in payment for the food and food ingredient, as defined in s. 77.51 (3t).

   (24)   Motion picture theater equipment. Projection equipment, sound systems and projection screens that are owned and used by a motion picture theater.

   (25)   Digital broadcasting equipment. Digital broadcasting equipment owned and used by a radio station, television station, or video service network, as defined in s. 66.0420 (2) (zb).

   (26)   High density sequencing systems.

      (b)    A high density sequencing system that by mechanical or electronic operation moves printed materials from one place to another within the production process, organizes the materials for optimal staging, or stores and retrieves the materials to facilitate the production or assembly of such materials.

   (27)   Machinery, tools, and patterns.

      (b)    Beginning with the property tax assessments as of January 1, 2018, machinery, tools, and patterns, not including such items used in manufacturing.

      (c)    A taxing jurisdiction may include the most recent valuation of personal property described under par. (b) that is located in the taxing jurisdiction for purposes of complying with debt limitations applicable to the jurisdiction.

   (28)   Business and manufacturing personal property.

      (b)    The exemption under par. (a) does not apply to the following:

         1.    Property assessed as real property under s. 70.17 (3).

         2.    Property subject to taxation under s. 76.025 (2).

      (c)    A taxing jurisdiction may include the most recent valuation of personal property described under par. (a) that is located in the taxing jurisdiction for purposes of complying with debt limitations applicable to the jurisdiction.