Guide
The Texas "ag exemption" and your barn
Two different things get called the ag exemption in Parker County, and a barn project touches both. Neither is a discount on the barn.
1. Property tax: agricultural valuation of the land
Parker County Appraisal District calls it what it is: "Agricultural Valuation is a special-use valuation" in which "productivity value is based on the land's capacity to produce crops or support livestock and not on the market value of the real estate market" (PCAD, Agricultural Valuation and Rollback). It rests on Texas Tax Code 23.51, which defines qualified open-space land as land "currently devoted principally to agricultural use to the degree of intensity generally accepted in the area" for five of the preceding seven years (23.51).
- It values the land, not the barn. Improvements are appraised separately. The land under a farm building can qualify; the building does not get productivity value.
- Parker County minimums. PCAD states improved pasture needs a minimum of 5 acres and native pasture 10 acres; a horse counts as one animal unit on 10–12 acres; tracts under five acres with a residence "will generally be considered residential."
- Horses are a narrow fit. Raising or keeping livestock is agricultural use. Appraisal guidance used across North Texas (Kaufman CAD, published by AgriLife) states that land used primarily to train, show, race or ride horses for recreation does not qualify, and that operations "set up strictly for boarding, training and showing of horses do not support an agricultural purpose." Ask PCAD how your use is classified before you rely on it.
- Rollback. Changing the use (PCAD's example is "building non-agricultural" improvements) triggers recapture of the taxes saved for the three preceding years.
- Apply with Form 50-129 between January 1 and April 30; late filing to about July 25 carries a 10 percent penalty. PCAD 817-596-0077, option 4.
2. Sales tax: the Ag/Timber number and what it exempts
The Texas Comptroller issues an Ag/Timber Number (Form AP-228, online in about ten minutes) that lets you give a retailer Form 01-924, the Texas Agricultural Sales and Use Tax Exemption Certificate (Form 01-924). Numbers renew every four years; current numbers expire December 31, 2027 (Comptroller Ag/Timber). The certificate itself lists what is and is not covered:
| Exempt with an Ag/Timber number | Taxable even with one |
|---|---|
| Stalls, corral panels, squeeze chutes, head gates, feed and water troughs, fencing materials, gates, portable stalls, fertilizer | "Materials used to construct roads or buildings used for shelter, housing, storage or work space (examples include general storage barns, sheds or shelters)" |
| Horses, mules and work animals, and their feed (always exempt, no certificate needed) | Barn building materials and structural components generally; office furniture, clothing, computers |
The Comptroller's FAQ is explicit that "generally, building materials or structural components used to construct or repair barns" are taxable, with an exception only for buildings designed for agricultural production that cannot economically be used otherwise (its example is a free-stall dairy barn), that "merely owning a horse does not qualify a person for an ag/timber number," and that boarding and riding lessons are non-taxable services while trail rides are taxable amusement (Comptroller FAQ).
What this means for a quote
- Expect sales tax on the shell. Stalls, panels and troughs may be exempt if you hold a number and give the certificate to the seller, not to the Comptroller.
- A barn on a tract under five acres with a house does not create agricultural valuation; building a residence on qualified land can change the classification and trigger rollback.
- Keep the two systems separate in your head: PCAD decides land valuation; the Comptroller decides sales tax. Neither issues anything that waives a City of Weatherford permit or a Parker County septic or floodplain requirement.
Sources: Parker County Appraisal District agricultural valuation procedures (updated 9/27/2024), Texas Tax Code 23.51, Texas Comptroller Form 01-924 and Ag/Timber pages, Kaufman County appraisal guidelines hosted by Texas A&M AgriLife (cited for the general horse-use principle only). Checked on the date in the footer. This is a summary, not tax advice.
Published 2026-11-07 · last checked 2026-11-07 · by Seven16 Group.