Tax laws in the United States impact the lives and decisions of taxpayers everyday, specifically horse owners and professionals. This research aims to provide an overview of the equine industry in the United States; specifically in the areas racing, competition, breeding, and recreation. Additionally, this research will address the changes to tax law in the equine industry created by Tax Reform Acts of 1986 and Tax Cut and Jobs Act of 2017 in the United States. Finally, the implications of the changes to the tax law and code on the equine industry will be discussed.