Most people assume horse racing is a business or hobby strictly reserved for the wealthy. There is a common misconception it takes $20,000 or more each month to own a racehorse. This figure is a gross exaggeration of the true cost of racehorse ownership. It costs about $45,000 per year to keep a racehorse training operation running. However, the total cost of raising a racehorse each year ultimately hinges on the trainer's desires and the location in which the training takes place. Let's take a closer look at the numbers.